Invention Grant
- Patent Title: Semiconductor die with improved ruggedness
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Application No.: US17083712Application Date: 2020-10-29
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Publication No.: US11587842B2Publication Date: 2023-02-21
- Inventor: Chris Hardiman , Kyoung-Keun Lee , Fabian Radulescu , Daniel Namishia , Scott Thomas Sheppard
- Applicant: Wolfspeed, Inc.
- Applicant Address: US NC Durham
- Assignee: Wolfspeed, Inc.
- Current Assignee: Wolfspeed, Inc.
- Current Assignee Address: US NC Durham
- Agency: Myers Bigel, P.A.
- Main IPC: H01L23/48
- IPC: H01L23/48 ; H01L23/52 ; H01L29/40 ; H01L23/31 ; H01L29/06 ; H01L21/56 ; H01L23/532 ; H01L23/00 ; H01L29/20

Abstract:
A semiconductor die includes a substrate, a first passivation layer over the substrate, and a second passivation layer over the first passivation layer and the substrate. The substrate has boundaries defined by a substrate termination edge. The first passivation layer is over the substrate such that it terminates at a first passivation termination edge that is inset from the substrate termination edge by a first distance. The second passivation layer is over the first passivation layer and the substrate such that it terminates at a second passivation termination edge that is inset from the substrate termination edge by a second distance. The second distance is less than the first distance such that the second passivation layer overlaps the first passivation layer.
Public/Granted literature
- US20210043530A1 SEMICONDUCTOR DIE WITH IMPROVED RUGGEDNESS Public/Granted day:2021-02-11
Information query
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