Patent ID: 9034734
Filing Date: 2015-05-19
Classification: H01L,H01S,Y10S

Abstract:
1. A method of passively aligning at least a first compound semiconductor (CS) die with an external device, the method comprising: providing at least a first CS die that has been diced from a CS wafer by a plasma etch dicing process that provides the first CS die with at least one side wall that has a known spatial relationship to at least one optical element formed on or in a surface of the first CS die; providing an external device with at least one alignment feature extending upwardly from a top surface of the external device; and aligning the first CS die with the external device by placing said at least one side wall of the first CS die in abutment with the alignment feature of the external device, wherein the known spatial relationship of said at least one side wall to said at least one optical element allows said at least one side wall to be used as a passive alignment feature such that passively aligning the side wall with the alignment feature results in passive alignment of said at least one optical element with the external device.