Invention Grant
- Patent Title: Composite wafer, semiconductor device, electronic component and method of manufacturing a semiconductor device
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Application No.: US16081236Application Date: 2017-02-27
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Publication No.: US10672664B2Publication Date: 2020-06-02
- Inventor: Paul Ganitzer , Carsten von Koblinski , Thomas Feil , Gerald Lackner , Jochen Mueller , Martin Poelzl , Tobias Polster
- 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
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@b905f3e
- International Application: PCT/EP2017/054530 WO 20170227
- International Announcement: WO2017/148873 WO 20170908
- Main IPC: H01L21/78
- IPC: H01L21/78 ; H01L21/8234 ; H01L21/56 ; H01L23/495 ; H01L21/762 ; H01L21/768 ; H01L23/48 ; H01L25/065 ; H01L23/31

Abstract:
In an embodiment, a method includes forming at least one trench in non-device regions of a first surface of a semiconductor wafer, the non-device regions being arranged between component positions, the component positions including device regions and a first metallization structure, applying a first polymer layer to the first surface of a semiconductor wafer such that the trenches and edge regions of the component positions are covered with the first polymer layer and such that at least a portion of the first metallization structure is uncovered by the first polymer layer, removing portions of a second surface of the semiconductor wafer, the second surface opposing the first surface, revealing portions of the first polymer layer in the non-device regions and producing a worked second surface and inserting a separation line through the first polymer layer in the non-device regions to form a plurality of separate semiconductor dies.
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Information query
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