US Patent No. 10,893,612

RIGID-FLEXIBLE PRINTED CIRCUIT BORD FABRICATION USING INKJET PRINTING


Patent No. 10,893,612
Issue Date January 12, 2021
Title Rigid-flexible Printed Circuit Bord Fabrication Using Inkjet Printing
Inventorship Hila Elimelech, Beer Tuvia (IL)
Einav Amit, Jerusalem (IL)
Assignee Nano Dimension Technologies Ltd., Nes Ziona (IL)

Claim of US Patent No. 10,893,612

1. A method for fabricating a rigid-flexible electronic object using inkjet printer comprising:a. providing an ink jet printing system comprising:
i. a first print head having: at least one aperture, a rigid resin ink reservoir, and a rigid resin pump configured to supply rigid resin inkjet ink through the aperture;
ii. a second print head having: at least one aperture, a rigid metallic ink reservoir, and a rigid metallic ink pump configured to supply the rigid metallic inkjet ink through the aperture;
iii. a third print head having: at least one aperture, a flexible resin ink reservoir, and a flexible resin ink pump configured to supply the flexible resin inkjet ink through the aperture;
iv. a fourth print head having: at least one aperture, a flexible conductive ink reservoir, and a flexible conductive ink pump configured to supply the flexible conductive inkjet ink through the aperture;
v. a conveyor, operably coupled to the first, the second, the third, and the fourth print heads configured to convey a substrate to each of the first, second, third, and fourth print heads; and
vi. a computer aided manufacturing (“CAM”) module, comprising: a data processor; a non-volatile memory; and a set of executable instructions stored on the non-volatile memory for: receiving a 3D visualization file representing the rigid-flexible electronic object; generating a file that represents at least one, substantially 2D layer for printing the rigid-flexible electronic object; receiving a selection of parameters related to the rigid-flexible electronic object; and altering the file represents at least one, substantially 2D layer based on at least one of the selection of parameters,wherein the CAM module is configured to control each of the first, second, third and fourth print heads;b. providing the rigid resin inkjet ink composition, the rigid metallic inkjet ink composition, the flexible resin ink composition, and the flexible conductive ink composition;
c. using the CAM module, obtaining a generated file representing a first, substantially 2D layer of the rigid-flexible electronic object for printing, the 2D layer comprising a pattern representative of the rigid resin inkjet ink, the rigid metallic inkjet ink, the flexible resin inkjet ink, the flexible conductive inkjet ink, or a combination comprising two or more;
d. using the first print head, forming the pattern corresponding to the rigid resin representation in the first, substantially 2D layer of the rigid-flexible electronic object for printing;
e. curing the pattern corresponding to the rigid resin representation in the 2D layer of the rigid-flexible electronic object;
f. using the third print head, forming the pattern corresponding to the flexible resin representation in the first, substantially 2D layer of the rigid-flexible electronic object for printing;
g. cross-linking the pattern corresponding to the flexible resin representation in the 2D layer of the rigid-flexible electronic object;
h. using the second print head, forming the pattern corresponding to the rigid metallic ink representation in the first, substantially 2D layer of the rigid-flexible electronic object for printing;
i. sintering the pattern corresponding to the rigid metallic ink representation in the first, substantially 2D layer of the rigid-flexible electronic object for printing;
j. using the fourth print head, forming the pattern corresponding to the flexible conductive ink representation in the first, substantially 2D layer of the rigid-flexible electronic object for printing; and
k. cross-linking the pattern corresponding to the flexible conductive representation in the 2D layer of the rigid-flexible electronic object.