Patent ID: 6190947
Filing Date: 2001-02-20
Classification: H01L

Abstract:
A method of manufacturing a rectifier chip with cutting surface sealed by passivation glass to omit the use of an expansion plate, which method comprising the following steps:providing a semiconductor wafer with P-N junction;cutting said wafer to a plurality of semiconductor dices with each of said dices having a cutting surface;etching and polishing the cutting surface of said dice to dice with a smooth cutting surface and form a silicon dioxide film;positioning said dices in a simplified fixture respectively and the cutting surface of each of said dices is applied with paste of passivation glass powder, said simplified fixture including a base plate with a plurality of locating points and a formed plate with a plurality of formed holes, the number of said formed holes of said formed plate being the same as the number of said locating points of said base plate.