Patent ID: 6225191
Filing Date: 2001-05-01
Classification: G02B,H01L,Y10S

Abstract:
Process for the manufacture of optical components comprising the steps of:(a) fabricating a plurality of optical components on the surface of a silicon wafer,(b) after fabrication in step (a) is complete, coating the silicon wafer with a protective sacrificial layer, said sacrificial layer selected from the group consisting of Hexamethyldisilazane (HMDS), Trichlorophenylsilane (TCPS), Bistrimethylsilyacetimide (BSA), Monazoline C, Trichlorobenzene, and Xylene,(c) mounting the silicon wafer on an adhesive tape carrier,(d) dicing the silicon wafer into individual chips thereby creating dicing debris,(e) removing the sacrificial layer thereby removing the dicing debris from the chips, and(f) packaging the individual chips into a device package.