Invention Grant
- Patent Title: Method for preventing die pad delamination
- Patent Title (中): 防止模具垫分层的方法
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Application No.: US14573071Application Date: 2014-12-17
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Publication No.: US09214440B1Publication Date: 2015-12-15
- Inventor: Rongwei Zhang , Abram Castro
- Applicant: Texas Instruments Incorporated
- Applicant Address: US TX Dallas
- Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee Address: US TX Dallas
- Agent Steven A. Shaw; Frank D. Cimino
- Main IPC: H01L23/495
- IPC: H01L23/495 ; H01L23/00

Abstract:
The invention is directed to a method for inhibiting or preventing delamination at the interface of the die attach/mold compound and the die pad of a semiconductor device and a semiconductor device formed by such method. The method includes providing a leadframe having a top surface; coating said top surface of said leadframe with first and second silane coating; heating said silane coatings to form a sol-gel layer having a porosity of at least 10%; applying a die to said sol-gel layer; securing said die to said sol-gel layer by a die attaching compound; and after the curing of die attach material and wire bonding, a mold compound is applied through molding.
Information query
IPC分类: