Invention Grant
- Patent Title: Semiconductor device with compressive interlayer
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Application No.: US16418006Application Date: 2019-05-21
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Publication No.: US10700019B2Publication Date: 2020-06-30
- Inventor: Marianne Mataln , Michael Nelhiebel , Rainer Pelzer , Bernhard Weidgans
- 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: H01L23/00
- IPC: H01L23/00 ; H01L23/58 ; B81B7/00

Abstract:
A semiconductor device includes a substrate, a structured interlayer on the substrate and having a defined edge, and a structured metallization on the structured interlayer and also having a defined edge. The defined edge of the structured interlayer faces the same direction as the defined edge of the structured metallization. The defined edge of the structured interlayer extends beyond the defined edge of the structured metallization by at least 0.5 microns so that the defined edge of the structured metallization terminates before reaching the defined edge of the structured interlayer. The structured interlayer has a compressive residual stress at room temperature and the structured metallization generates a tensile stress at room temperature that is at least partly counteracted by the compressive residual stress of the structured interlayer.
Public/Granted literature
- US10658309B2 Semiconductor device with compressive interlayer Public/Granted day:2020-05-19
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