US Pat. No. 9,901,019

TAPE FEEDER AND METHOD FOR MOVING A CARRIER TAPE TOWARDS A PICKING POSITION IN A COMPONENT MOUNTING MACHINE

Mycronic AB, Taby (SE)

1. A method, for use with a component mounting machine including an electronic component pickup head at a component pick position,
for directing component tape to the component pick position, the component tape including a carrier tape with compartments
containing circuit board components, the method comprising:
positioning a length of component tape along a tape guide path of a tape feeder body of a tape feeder, the tape feeder further
comprising a feeder wagon, the feeder wagon comprising a feeder wagon body and a feeder head;

moving the feeder head along a feeder head path transverse to the tape guide path from a tape-released position in a relaxed
state of a bias spring, against spring force resulting from moving the bias spring from its relaxed state to a tape-engaged
position at which the feeder head drivingly engages the component tape;

moving the feeder wagon body, and the feeder head therewith, along a linear path generally parallel to the tape guide path
from a first feeder wagon position to a second feeder wagon position thereby causing the feeder head, engaging the component
tape, to move a compartment of the carrier tape to the component pick position;

moving the feeder head along a reverse feeder head path from the tape-engaged position to the tape-released position thereby
disengaging the feeder head from the carrier tape; and

moving the feeder wagon body, and the feeder head therewith, from the second feeder wagon position to the first feeder wagon
position.

US Pat. No. 9,648,795

PICK-AND-PLACE TOOL

MYCRONIC AB, Taby (SE)

1. A pick-and-place tool comprising:
a mounting head including,
a die position determining unit including a camera, the die position determining unit configured to one of measure and detect
an actual position of at least one die during a time between placement of the at least one die on a workpiece and picking
up of a subsequent die for placement on the workpiece, the actual position of the at least one die being an actual position
of the at least one die on the workpiece relative to at least one local alignment mark on the workpiece, wherein

the mounting head is configured to move together with the die position determining unit between a first position, at which
the at least one die is picked up, and a second position at which the at least one die is placed on the workpiece,

the pick-and-place tool is further configured to output position information for adjusting original pattern data associated
with a pattern to be generated on the workpiece, the position information including (i) imaging data of the actual position
of the at least one die, and (ii) local alignment data for the at least one die, the local alignment data including the measured
or detected actual position of the at least one die on the workpiece relative to the at least one local alignment mark on
the workpiece,

the pick-and-place tool is further configured to output the position information to an external patterning tool, either directly
or indirectly via a memory,

the imaging data is obtained by the camera after the placement of the at least one die and while the mounting head is still
in the second position at which the at least one die is placed on the workpiece, and

the die position determining unit is further configured to one of measure and detect the actual position of the at least one
die while the mounting head is still in the second position at which the at least one die is placed on the workpiece, and
without moving from the second position at which the at least one die is placed on the workpiece.

US Pat. No. 9,398,697

METHODS AND DEVICES FOR JETTING VISCOUS MEDIUM ON WORKPIECE

MYCRONIC AB, Taby (SE)

1. A method for jetting droplets of a viscous medium on a workpiece using ejector-based non-contact jetting technology, the
method comprising:
iteratively jetting a plurality of strips of droplets of the viscous medium from at least one jetting nozzle onto a first
surface of the workpiece to form a single continuous mass of material at an edge of the first surface of the workpiece, each
of the plurality of strips of droplets being closer to the edge of the first surface of the workpiece than previously jetted
strips of droplets; wherein

the iteratively jetting of the plurality of strips of droplets of the viscous medium onto the first surface is performed while
the at least one jetting nozzle is in motion without stopping at each location on the workpiece where viscous medium is to
be deposited,

a last of the plurality of strips of droplets of the viscous medium is formed at the edge of the first surface of the workpiece,
extends past the edge of the first surface of the workpiece, and adheres to a second surface of the workpiece,

the last of the plurality of strips of droplets of the viscous medium is formed after all previously jetted strips of droplets
of the viscous medium, and

the last of the plurality of strips of droplets of the viscous medium is formed without a strip of droplets of the viscous
medium formed on the second surface of the workpiece subsequent to the last of the plurality of strips of droplets of the
viscous medium.

US Pat. No. 9,291,902

METHOD AND APPARATUS FOR MERGING MULTIPLE GEOMETRICAL PIXEL IMAGES AND GENERATING A SINGLE MODULATOR PIXEL IMAGE

Mycronic AB, Taby (SE)

1. A method of forming a custom latent image in a patterning layer over a substrate, the method including:
receiving standard pattern data on first data path;
receiving custom pattern data on a second data path;
merging the standard and custom pattern data to form a merged-rasterized pattern data that represents a physical, custom latent
image to be formed in a patterning layer; and

forming the custom latent image in the patterning layer from the merged-rasterized pattern data using a direct writing device.

US Pat. No. 9,235,127

METHOD AND APPARATUS FOR MERGING MULTIPLE GEOMETRICAL PIXEL IMAGES AND GENERATING A SINGLE MODULATOR PIXEL IMAGE

Mycronic AB, Taby (SE)

1. A method of forming a custom latent image in a patterning layer over a substrate, the method including:
receiving standard pattern data;
receiving custom pattern data;
merging the standard and custom pattern data to form a merged-rasterized pattern data that represents a physical, custom latent
image to be formed in a patterning layer; and

forming the custom latent image in the patterning layer from the merged-rasterized pattern data using a direct writing device.

US Pat. No. 9,459,540

MECHANICALLY PRODUCED ALIGNMENT FIDUCIAL METHOD AND DEVICE

Mycronic AB, Taby (SE)

1. A method of aligning a workpiece between two exposure patterning operations, the method including:
forming fiducials by mechanical indentation using a point and a ram in an exposure sensitive layer on a workpiece to expose
a first patterning layer underlying the exposure sensitive layer on the workpiece;

measuring and recording first position information of the fiducials relative to a pattern of a first exposure in a first coordinate
system, wherein the first coordinate system is used by a writing system to apply the first exposure to the workpiece;

physically moving the workpiece and repositioning it in the writing system;
measuring and recording second position information of the fiducials or of a transfer from the fiducials onto another layer
of the workpiece;

using the second position information to align a second coordinate system relative to the first coordinate system; and
applying a second exposure to the workpiece using the second coordinate system.

US Pat. No. 9,341,962

METHOD AND APPARATUS FOR PERFORMING PATTERN ALIGNMENT TO DIE

MYCRONIC AB, Taby (SE)

1. A method for patterning a layer of a workpiece in a direct write machine, wherein the direct write machine is provided
with a coordinate system for controlling write operations and the workpiece has dies distributed thereon, wherein the dies
distributed on the workpiece are associated with a circuit pattern in the form of original circuit pattern data representing
the whole workpiece, the method comprising:
receiving measurement data associated with the workpiece and indicating measured positions of a plurality of the dies distributed
on the workpiece in relation to at least one reference feature of the workpiece;

detecting the at least one reference feature of the workpiece;
determining a relation between the at least one reference feature of the workpiece and the coordinate system of the direct
write machine;

transforming the measured positions of the plurality of dies distributed on the workpiece to transformed positions defined
in the coordinate system of the direct write machine based on the determined relation between the at least one reference feature
of the workpiece and the coordinate system of the direct write machine;

preparing adjusted circuit pattern data for writing on the workpiece by resampling the original circuit pattern data representing
the whole workpiece based on the transformed positions and the original circuit pattern data representing the whole workpiece,
wherein the adjusted circuit pattern data is fitted to the plurality of dies on the whole workpiece within at least one pre-settable
deviation parameter, wherein

the adjusted circuit pattern data represents an electric circuit pattern coupling connection points, or contact pads, of the
plurality of dies on the whole workpiece, and

the resampling of the original pattern data representing the whole workpiece is also dependent on the measured positions of
the plurality of dies as well as the transformed position and shape of the workpiece, in order to fit data to each die on
the workpiece in the coordinate system of the direct write machine; and

writing a pattern on the whole workpiece according to the adjusted circuit pattern data to form the electric circuit pattern
coupling the connection points, or contact pads, of the plurality of dies on the whole workpiece.

US Pat. No. 9,210,814

APPARATUSES AND METHODS FOR COMPENSATION OF CARRIER DISTORTIONS FROM MEASUREMENT MACHINES

MYCRONIC AB, Taby (SE)

1. A method for generating a pattern on a workpiece having at least one die placed thereon, the method comprising:
measuring first positions of the at least one die and at least two global alignment marks on the workpiece as placed in a
measurement tool;

updating nominal positions of the at least two global alignment marks based on the measured first positions of the at least
two global alignment marks;

measuring second positions of the at least two global alignment marks on the workpiece as placed in a writing tool;
calculating a global alignment transformation based on the updated nominal positions and the measured second positions of
the at least two global alignment marks;

generating pattern adjustment data by applying the global alignment transformation to the measured first positions of the
at least one die on the workpiece;

modifying pattern image data associated with the pattern based on the generating pattern adjustment data; and
generating the pattern on the workpiece based on the modified pattern image data.

US Pat. No. 9,275,442

GRADIENT ASSISTED IMAGE RESAMPLING IN MICRO-LITHOGRAPHIC PRINTING

Mycronic AB, Taby (SE)

1. A method of creating a second pixel map using a first pixel map, the method including:
receiving the first pixel map including a plurality of white, black and grey scale pixels and gradient directions for one
or more of the grey scale pixels;

using said gradient directions and grey scale values for generating edge geometry data for one or more of the grey scale pixels;
and

resampling the first pixel map to produce the second pixel map using the edge geometry data and the plurality of white, black
and grey scale pixels of the first pixel map.

US Pat. No. 9,808,822

METHODS AND DEVICES FOR JETTING VISCOUS MEDIUM ON WORKPIECES

MYCRONIC AB, Taby (SE)

1. A method for depositing viscous media on a workpiece, the method comprising:
moving at least two depositing head assemblies in three dimensional space, the moving including
moving a first of the at least two depositing head assemblies along a first beam arranged above a platform holding the workpiece,
and

moving a second of the at least two depositing head assemblies along a second beam arranged above the platform and in parallel
with the first beam; and

depositing the viscous media on the workpiece at least one of concurrently and simultaneously by the at least two depositing
head assemblies, the depositing including

shooting droplets of mutually different types of viscous media, at least one of the mutually different types of viscous media
is a solder paste and at least one other of the mutually different types of viscous media is not a solder paste.

US Pat. No. 10,039,220

METHOD, SYSTEM AND DEVICE FOR IMPROVED STORAGE AND HANDLING OF COMPONENTS

Mycronic AB, Taeby (SE)

18. A cluster of automated Surface Mount Device (SMD) warehouses, each automated SMD warehouse comprising:a processor, and
an actuator communicatively coupled to said processor;
wherein said processor is configured to
receive at least one of input data or a parameter, the at least one of input data or parameter indicative of a position within said automated SMD warehouse, or a position within the cluster of automated SMD warehouses, and
send control data to the actuator based on the at least one of input data or parameter;
wherein the actuator is configured to, based on the control data,
retrieve a bin from (i) said position within the automated SMD warehouse or (ii) the position within the cluster of automated SMD warehouses,
present said retrieved bin at an output port of said automated SMD warehouse; and
wherein each automated SMD warehouse is configured to store and retrieve bins;
wherein said cluster of automated SMD warehouses is further configured to retrieve and redistribute bins between storage positions in different ones of the automated SMD warehouses;
wherein each automated SMD warehouse is further configured to present said retrieved bin at an output port of said automated SMD warehouse;
wherein each bin includes a plurality of slots or compartments;
wherein each of the plurality of slots or compartments is configured to hold a bin load unit; and
wherein each bin load unit includes a pallet including a component tape reel, the pallet including a particular gripping area configured to enable gripping of the pallet by at least one actuator of the first actuator and the second actuator.

US Pat. No. 9,938,080

METHOD, SYSTEM AND DEVICE FOR REDISTRIBUTION OF COMPONENTS AND BINS IN SMD WAREHOUSE

MYCRONIC AB, Taeby (SE)

1. A method for preparing an upcoming Surface Mount Technology (SMT) job by redistributing bin load units in an automated Surface Mount Device (SMD) warehouse, where said automated SMD warehouse is configured to obtain information related to upcoming SMT jobs from an SMT information database, said automated SMD warehouse comprising at least one actuator, such as a robot or robotic arm, configured to automatically store and retrieve bins within said automated Surface Mount Device (SMD) warehouse, the method is comprising:automatically redistributing, by the use of said actuator, bin load units comprised in bins, each of said bins comprising a plurality of slots or compartments each configured for carrying/holding a bin load unit and wherein each bin load unit comprises or constitutes a component tape reel, in said automated Surface Mount Device (SMD) warehouse based on at least one of SMT job related information received or retrieved from said SMT information database and predetermined rules for optimizing presentation of bins and/or bin load units at a port of said automated Surface Mount Device (SMD) warehouse, and wherein said step of automatically redistributing is performed within said automated Surface Mount Device (SMD) warehouse by redistributing bin load units within a stored bin or between two or more stored bins during idle periods when the automated Surface Mount Device (SMD) warehouse is not occupied with storing or retrieving bins, thereby is idle time used for pre-loading bins with components used in an upcoming SMT job.

US Pat. No. 10,149,390

MASKLESS WRITING OF A WORKPIECE USING A PLURALITY OF EXPOSURES HAVING DIFFERENT FOCAL PLANES USING MULTIPLE DMDS

Mycronic AB, Taby (SE)

1. A method of direct writing on an uneven surface of a workpiece, the method comprising:performing laser energy pattern imaging on the uneven surface of the workpiece, which is covered with a radiation sensitive layer that produces the uneven surface and is moving in relationship to a writing head, by exposing the uneven surface using at least two laser energy exposures in direct writing operations at a particular point on the workpiece to form a pattern in the radiation sensitive layer,
wherein a first height of a first focal plane of a first laser energy exposure at the particular point on the workpiece of the at least two laser energy exposures is different from a second height of a second focal plane of a second laser energy exposure at the particular point on the workpiece of the at least two laser energy exposures, such that the first laser energy exposure at the particular point on the workpiece and the second laser energy exposure at the particular point on the workpiece form an extended total depth of focus at the particular point on the workpiece.

US Pat. No. 10,239,084

METHODS AND DEVICES FOR JETTING VISCOUS MEDIUM ON WORKPIECES

MYCRONIC AB, Taby (SE)

1. A linescan jetting apparatus for at least one of depositing or jetting viscous medium on a workpiece, the apparatus comprising:a conveyor configured to carry the workpiece in a first direction;
a first set of beams extending longitudinally between opposite sides of a depositing head assembly frame;
a second set of beams extending longitudinally between the first set of beams in a direction that is perpendicular to a direction in which the first set of beams extends longitudinally, such that each beam of the second set of beams is connected at opposite ends to separate beams of the first set of beams, the second set of beams including a first beam and a second beam;
a first depositing head assembly movably fixed to the first beam, the first depositing head assembly being configured to move along the first beam in a second direction, which is perpendicular to the first direction; and
a second depositing head assembly fixed to the second beam, the second depositing head assembly being configured to move along the second beam in the second direction.

US Pat. No. 10,440,867

METHOD AND DEVICE FOR AUTOMATIC STORAGE OF TAPE GUIDES

1. An automated SMD tower storage unit and pallets, suitable for storing an electronic component tape reel with a pre-threaded tape guide having surface mount components in pockets, the automated storage unit comprising:an interior surrounded by a wall and a deposition port in the wall, further comprising interior locations that accept automated storage of each of the pallets,
wherein
one or more of the pallets has a horizontal surface with a top and carries an electronic component tape reel with a pre-threaded tape guide that is placed on the top of the pallet with the reel laying on its side, and
the pallets further include a spacer element and/or mechanical holder configured to carry, as a unit, the electronic component tape reel with the pre-threaded tape guide,
an internal robot arm that performs automated pick up and retrieval of the pallets,
the deposition port through which the pallets are passable is where the internal robot arm can pick up the pallets and move them to a selected one of the interior locations inside the automated storage unit storage.

US Pat. No. 10,322,879

METHOD, SYSTEM AND DEVICE FOR IDENTIFYING A BIN IN AN SMT SYSTEM

Mycronic AB, Taby (SE)

9. A method for retrieving a bin at one or more particular positions within an automated Surface Mount Device (SMD) warehouse, the automated SMD warehouse including an actuator configured to automatically handle objects within the automated Surface Mount Device (SMD) warehouse, the method comprising:retrieving, by the actuator, the bin from a particular position within the automated Surface Mount Device (SMD) warehouse, the bin including a plurality of compartments, each compartment configured to hold a separate bin load unit, each bin load unit including a component tape reel, the retrieving based on
receiving input data associated with an upcoming SMT job, the input data including data identifying a particular component tape reel,
identifying a unique bin load unit ID associated with a unique identity of the bin load unit,
identifying a unique bin ID of a bin in which the bin load unit is held, and
identifying the particular position as a particular position within the automated SMD warehouse at which the bin is stored; and
presenting, by the actuator, the retrieved bin at a port of the automated SMD warehouse.

US Pat. No. 10,549,306

METHODS AND DEVICES FOR JETTING VISCOUS MEDIUM ON WORKPIECES

MYCRONIC AB, Taby (SE)

1. An apparatus for at least one of depositing or jetting viscous medium on a surface of a workpiece, the apparatus comprising:at least two depositing head assemblies, the at least two depositing head assemblies including at least one jetting head assembly, or ejector, configured to perform jet printing of viscous medium, wherein
the at least two depositing head assemblies are configured to be mutually different in shooting droplets with mutually different non-zero shot sizes in a range of about 1-50 nL or within mutually different shot size ranges of non-zero shot sizes in the range of about 1-50 nL, based on the at least two depositing head assemblies causing respective nozzle spaces of the at least two depositing head assemblies to hold different amounts of viscous medium prior to shooting droplets,
the at least two depositing head assemblies are further configured to move in three dimensional space and to at least one of concurrently or simultaneously jet or deposit the viscous medium on the workpiece, and
at least one jetting head assembly of the at least two depositing head assemblies is configured to move while jetting the viscous medium on the workpiece.

US Pat. No. 10,524,359

METHOD AND SYSTEM FOR MANUFACTURING A WORKPIECE USING A POLYMER LAYER

Mycronic AB, Taby (SE)

1. A method for manufacturing a workpiece, comprising:providing a layer of a polymeric material on at least a portion of a substrate, said polymeric material being adapted to change its electrical conductivity when exposed with electromagnetic radiation within a certain frequency range and certain amplitude range;
patterning the layer of polymeric material by exposing the layer with electromagnetic radiation having a frequency and amplitude within said certain frequency range and amplitude range so as to form a pattern of regions having a first electrical conductivity and regions having a second electrical conductivity;
mounting an electronic component on the layer of polymeric material; and
curing the polymeric material.

US Pat. No. 10,609,822

JETTING DEVICES WITH CONTROL VALVE-ENABLED VARIABLE AIR FLOW AND METHODS OF CONTROLLING AIR FLOW

Mycronic AB, Taby (SE)

1. A device configured to jet one or more droplets of a viscous medium, the device comprising:a jetting nozzle having a jetting outlet, the jetting nozzle configured to jet the one or more droplets through the jetting outlet;
a vacuum nozzle configured to direct a gaseous flow over the jetting outlet, the vacuum nozzle including a vacuum nozzle inlet, a vacuum nozzle outlet, and a suction hole, the jetting nozzle further configured to jet the one or more droplets through the suction hole via the jetting outlet;
a vacuum pump in flow communication with the vacuum nozzle outlet, the vacuum pump configured to generate the gaseous flow based on drawing a gaseous fluid into the vacuum nozzle and further towards the vacuum pump via the vacuum nozzle outlet; and
an inlet conduit coupled to the vacuum nozzle inlet, such that the inlet conduit is between the vacuum nozzle inlet and an ambient environment, the inlet conduit including a control valve, the control valve configured to control a flow rate of the gaseous flow through the vacuum nozzle outlet based on adjusting a smallest diameter of the inlet conduit between an open diameter and a constricted diameter,
wherein the open diameter of the inlet conduit is greater than a smallest diameter of the suction hole.

US Pat. No. 10,694,646

SMART CONTAINERS AND/OR BOXES HANDLED BY, AND STORED IN, AUTOMATED SMD WAREHOUSE

Mycronic AB, Taby (SE)

1. A container for use in a Surface Mount Technology (SMT) system comprising a Surface Mount Device (SMD) warehouse, the container comprising:an outer shell having side walls and a base defining at least one compartment to accommodate an SMT-job related object;
a cover configured to at least partly enclose the at least one compartment; and
a display unit configured to display information related to the SMT-job related object;
wherein the container has an outer shape allowing the container to be transported by an actuator of the SMD warehouse,
wherein the display unit is an electronic alphanumerical display that is configured to display information including at least one of
alphanumeric information, or
an optically scannable code.

US Pat. No. 10,610,942

METHOD AND DEVICE FOR JETTING DROPLETS

Mycronic AB, Taby (SE)

7. An ejector configured to perform a jetting process to jet droplets of viscous media onto a substrate, the ejector comprising:a jetting nozzle having a nozzle outlet;
an impacting device configured to impact a volume of the viscous media in a nozzle space of the jetting nozzle to jet droplets of the viscous media from the nozzle space through the nozzle outlet towards the substrate;
a sensor arrangement arranged after the jetting nozzle in a jetting direction, the sensor arrangement configured to detect a jetted droplet of viscous media passing thereby prior to deposition of the jetted droplet to a surface of the substrate; and
a jetting module configured to dynamically modify a jetting program to generate a modified jetting program for controlling a printing process during the jetting process based on adding one or several additional shots to said jetting program in response to detection, by said sensor arrangement, of at least one of (i) the jetted droplet having a volume that is outside a reference volume range prior to deposition of the jetted droplet to the surface of the substrate, or (ii) the jetted droplet having a velocity outside a reference velocity prior to deposition of the jetted droplet to the surface of the substrate,
wherein the ejector is further configured to execute the one or several additional shots in accordance with the modified jetting program to supplement viscous media already jetted on said substrate during said jetting program.

US Pat. No. 10,633,185

METHOD, SYSTEM AND DEVICE FOR IDENTIFYING A BIN IN AN SMT SYSTEM

Mycronic AB, Taby (SE)

1. A method in an automated Surface Mount Device (SMD) warehouse configured to store bins at one or more particular positions within said automated Surface Mount Device (SMD) warehouse, said automated SMD warehouse including an actuator configured to automatically handle objects within said automated Surface Mount Device (SMD) warehouse, said method comprising:receiving a bin at a port of said automated Surface Mount Device (SMD) warehouse, wherein said bin includes a plurality of slots or compartments that are each configured to hold a separate bin load unit of a plurality of bin load units, and wherein each separate bin load unit of said plurality of bin load units includes a separate component tape reel;
scanning an identity tag attached to said bin to obtain a unique bin ID, wherein an identity of a bin load unit held in said bin is associated with said unique bin ID in an SMT information database;
storing, by the actuator, said bin at a position within said automated Surface Mount Device (SMD) warehouse; and
storing data representing said position and said unique bin ID, via a communications network, as parameters in said SMT information database.

US Pat. No. 10,640,290

METHOD, SYSTEM AND DEVICE FOR PROVIDING INFORMATION TO AN SMT SYSTEM OPERATOR

Mycronic AB, Taby (SE)

1. A method for providing operator information in an Surface Mount Technology (SMT) system, the SMT system including an SMT information database and a SMT pick and place machine, the method comprising:receiving a bin, the bin being a basket, trolley or accumulator, the bin including a plurality of compartments, each compartment configured to hold a separate bin load unit of a plurality of bin load units, each separate bin load unit including a component tape reel, the bin further including an alphanumerical display controller and an alphanumerical display such that the alphanumerical display controller and the alphanumerical display are physically attached to and structurally supported by the bin;
causing the alphanumerical display controller physically attached to and structurally supported by the bin to recognize and register an identity of a bin load unit held in the bin based on an identity tag attached to the bin load unit being scanned;
causing the alphanumerical display controller physically attached to and structurally supported by the bin to communicate data representing the identity of the bin load unit from the bin to the SMT information database via a communications network, based on the alphanumerical display controller physically attached to and structurally supported by the bin recognizing and register the identity of the bin load unit held in the bin, such that the identity of the bin load unit is associated with an identity of the bin in the SMT information database;
receiving, at the alphanumerical display controller physically attached to the bin from the SMT information database via the communications network, display data relating to an SMT job; and
presenting said display data on the alphanumerical display physically attached to the bin,
wherein the causing the alphanumerical display controller to recognize and register the identity of the bin load unit held in the bin includes
an identity tag scanner scanning the identity tag attached to the bin load unit held in the bin,
the identity tag scanner transmitting information to the alphanumerical display controller physically attached to and structurally supported by the bin, in response to the scanning, and
the alphanumerical display controller processing the information received from the identity tag scanner to recognize and register the identity of the bin load unit held in the bin.