Patent search ap:("INFINEON TECHNOLOGIES AG") AND inv:"BRENNER WALTER" Page 1

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发明专利
Process for removing zinc-chromium oxide coatings used in the production of semiconductors comprises directing a laser beam onto regions of a surface covered with the coating 未知

公开(公告)号：DE10006968A1

公开(公告)日：2001-09-06

申请号：DE10006968

申请日：2000-02-16

Applicant: INFINEON TECHNOLOGIES AG

Inventor： BEER GOTTFRIED , BRENNER WALTER

IPC: H01L23/31 , H01L21/60

Abstract: Process for removing adhesion promoters used in the production of semiconductors comprises directing a laser beam onto regions of a surface covered with an adhesion promoter. An Independent claim is also included for a device for applying chips onto a leadframe or for applying bonding wires between a semiconductor chip and a leadframe. Preferred Features: The surface processed with the laser beam is held in a protective gas atmosphere. The laser beam is used in impulses.

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