US Patent No. 9,992,920

METHOD FOR ACCURATE POPULATION OF A CIRCUIT CARRIER


Patent No. 9,992,920
Issue Date June 05, 2018
Title Method For Accurate Population Of A Circuit Carrier
Inventorship Dietmar Kieslinger, Theresienfeld (AT)
Assignee ZKW GROUP GMBH, Wieselburg (AT)

Claim of US Patent No. 9,992,920

1. A method for accurate population of a circuit carrier (2) with at least one electronic component (1) which comprises at least two separately controllable light-emitting surfaces (3a, 3b, 3c), by which position errors of the light-emitting surfaces (3a, 3b, 3c) on the electronic component are detected and compensated for by calculating a correction variable (k), the method comprising:a) optically detecting current positions of the at least two light-emitting surfaces (3a, 3b, 3c) of the electronic component (1) with respect to a reference point;
b) calculating at least one current variable (Sist) characterizing the geometric location of the light-emitting surfaces (3a, 3b, 3c) according to the current positions of the at least two light-emitting surfaces (3a, 3b, 3c) of the electronic component (1);
c) comparing the at least one current variable (Sist) to at least one target variable (Ssoll) for calculating at least one correction variable (k), wherein the target variable (Ssoll) is represented by predefined values regarding the location and orientation of the light-emitting surfaces (3a, 3b, 3c) with respect to the reference point;
d) populating the circuit carrier (2) with the at least one electronic component (1) according to the at least one correction variable (k).