Invention Grant
- Patent Title: High density and durable semiconductor device interconnect
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Application No.: US17464113Application Date: 2021-09-01
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Publication No.: US11756923B2Publication Date: 2023-09-12
- Inventor: Marian Sebastian Broll , Barbara Eichinger , Alexander Herbrandt , Alparslan Takkac
- 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: H01L21/56
- IPC: H01L21/56 ; H01L23/31 ; H01L23/00

Abstract:
A method of forming a semiconductor device includes providing a carrier comprising a die attach pad, providing a semiconductor die that includes a bond pad disposed on a main surface of the semiconductor die, and providing a metal interconnect element, arranging the semiconductor die on the die attach pad such that the bond pad faces away from the die attach pad, and welding the metal interconnect element to the bond pad, wherein the bond pad comprises first and second metal layers, wherein the second metal layer is disposed between the first metal layer and a semiconductor body of the semiconductor die, wherein a thickness of the first metal layer is greater than a thickness of the second metal layer, and wherein the first metal layer has a different metal composition as the second metal layer.
Public/Granted literature
- US20230063259A1 HIGH DENSITY AND DURABLE SEMICONDUCTOR DEVICE INTERCONNECT Public/Granted day:2023-03-02
Information query
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