Invention Grant
- Patent Title: Direct selective adhesion promotor plating
-
Application No.: US15605093Application Date: 2017-05-25
-
Publication No.: US10297536B2Publication Date: 2019-05-21
- Inventor: Jochen Dangelmaier , Kim Huat Hoa , Hazrul Alang Abd Hamid , Andreas Allmeier , Dietmar Lang
- Applicant: Infineon Technologies AG
- Applicant Address: DE Neubiberg
- Assignee: Infineon Technologies AG
- Current Assignee: Infineon Technologies AG
- Current Assignee Address: DE Neubiberg
- Agency: Murphy, Bilak & Homiller, PLLC
- Main IPC: H01L21/00
- IPC: H01L21/00 ; H01L23/495 ; H01L21/48 ; H01L21/56 ; H01L23/31

Abstract:
A lead frame strip having a plurality of unit lead frames is provided. Each of the unit lead frames have a die paddle and a plurality of leads extending away from the die paddle. A first one of the unit lead frames is plated with an adhesion promoter plating material within a package outline area of the first unit lead frame. The package outline area includes one of the die paddles and interior portions of the leads. Wire bond sites are processed in the first unit lead frame before or after the plating of the first lead frame such that, after the plating of the first lead frame. The wire bond sites are substantially devoid of the adhesion promoter plating material. The wire bond sites are disposed within the package outline area at an end of the interior portions of the leads that is closest to the die paddle.
Public/Granted literature
- US20170271245A1 Direct Selective Adhesion Promotor Plating Public/Granted day:2017-09-21
Information query
IPC分类: