Invention Grant
- Patent Title: Floating guard ring for HV interconnect
- Patent Title (中): 用于HV互连的浮动保护环
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Application No.: US14173692Application Date: 2014-02-05
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Publication No.: US09437673B2Publication Date: 2016-09-06
- Inventor: Shekar Mallikarjunaswamy
- Applicant: Alpha and Omega Semiconductor Incorporated
- Applicant Address: US CA Sunnyvale
- Assignee: ALPHA AND OMEGA SEMICONDUCTOR INCORPORATED
- Current Assignee: ALPHA AND OMEGA SEMICONDUCTOR INCORPORATED
- Current Assignee Address: US CA Sunnyvale
- Agency: JDI Patent
- Agent Joshua D. Isenberg
- Main IPC: H01L29/49
- IPC: H01L29/49 ; H01L29/06 ; H01L27/06 ; H01L27/088 ; H01L29/78 ; H01L21/8238 ; H01L21/761 ; H01L27/092 ; H01L29/40

Abstract:
Aspects of the present disclosure describe an integrated circuit comprises a substrate of a first conductivity type semiconductor, a lightly doped semiconductor layer of the first conductivity type semiconductor disposed over the substrate, a driver circuit, an electrically conductive interconnect structure formed over the semiconductor layer and electrically connected to the driver circuit at one end, at least one guard structure formed in the semiconductor layer and under the interconnect structure and a well region of the first conductivity type semiconductor formed in a top portion of the semiconductor layer, between the driver circuit and the at least one guard structure and under the interconnect structure. The guard structure is electrically floating. It is emphasized that this abstract is provided to comply with rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.
Public/Granted literature
- US20150221720A1 FLOATING GUARD RING FOR HV INTERCONNECT Public/Granted day:2015-08-06
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