Patent ID: 9484610
Filing Date: 2016-11-01
CPC Classification: B41F,B41P,H01P,H05K

Claim Text:
1. A process for forming a waveguide using multiple layers of low temperature co-fired ceramic (LTCC) substrates and screen printing, the process comprising: forming a screen printing mask to comprise registration openings that correspond to a predetermined number of spaced apart registration holes located on each of the multiple layers of LTCC substrates; placing the screen printing mask over each LTCC substrate and adjusting a printing table of an associated screen printing machine so that the registration openings on the printing mask align with the corresponding spaced apart registration holes on the LTCC substrate; printing circuit patterns by passing and depositing conductor paste through the screen printing mask onto each of the LTCC substrate, and allowing the printed conductor paste to dry in an oven; and stacking up multiple layers of the LTCC substrates with printed circuit patterns by building layers of the LTCC substrates on a stacking machine, wherein registration pins in the stacking machine align the registration holes on separate layers of the LTCC substrates with one another.