Patent ID: 6423574
Filing Date: 2002-07-23
Classification: H01L

Abstract:
A method of manufacturing diodes with ceramic base comprising the steps of:(1) cutting grooves on a ceramic base to form a plurality of units; (2) forming at least one lower layer conductor on each said unit of said base; (3) forming resistors with predetermined resistance values adjacent said lower layer conductor of each said unit, and coating surfaces of said resistors with a protective material; (4) placing on a flat-shift vibrator having a plurality of funneled stepped shape filled holes a plurality of dice each having salient formed on an upper surface thereof; (5) operating said flat-shift vibrator at a specific vibrating frequency to cause migration of said dice into said filled holes of said vibrator, said dice engaging said filled holes to be oriented therein with said upper surfaces directed downward, bottom portions of said dice being thereby exposed at said filled holes; (6) adhering said bottoms of said dice to said lower layer conductors of said base with conductive paste; (7) coating said dice of said base with covering materials; (8) exposing said salient on said upper surfaces of said dice; (9) adhering conductors to said salient of said dice tips and linking them to a border of each said unit so as to form upper layer conductors; (10) coating protective glue on top of said units; (11) separating said base into a plurality of elongated rectangular blocks; (12) cauterizing said blocks to form terminals on lateral portions thereof; and, (13) cleaving said blocks at said grooves of said base to form a plurality of single diodes.