Patent ID: 9035406
Filing Date: 2015-05-19
Classification: G02B,H01L

Abstract:
1. A wafer level optical packaging system comprising at least one first plate, the plate further comprising at least one first relief-type fiducial and at least one lens, the fiducial having a first and a second surface, the first surface having a height different from the second surface, wherein at least a portion of the first surface includes a first diffraction grating, and at least a portion of the second surface has no diffraction gratirg; a second fiducial on a second device having a second optical component, the second fiducial complementary to the first fiducial and positioned to permit use of the first and second fiducials to align the first plate with the second plate, the second fiducial further comprising a second diffraction grating; wherein the first diffraction grating includes a milled grating having arcuate lines.