Invention Grant
- Patent Title: Top via cut fill process for line extension reduction
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Application No.: US17383637Application Date: 2021-07-23
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Publication No.: US11804406B2Publication Date: 2023-10-31
- Inventor: Christopher J. Penny , Brent Anderson , Lawrence A. Clevenger , Kisik Choi , Nicholas Anthony Lanzillo , Robert Robison
- Applicant: International Business Machines Corporation
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agent Michael A. Petrocelli
- Main IPC: H01L21/768
- IPC: H01L21/768 ; H01L23/522

Abstract:
An interconnect structure including a top via with a minimum line end extension comprises a cut filled with an etch stop material. The interconnect structure further comprises a line formed adjacent to the etch stop material. The interconnect structure further comprises a top via formed on the line adjacent to the etch stop material, wherein the top via utilizes the etch stop material to achieve minimum line extension.
Public/Granted literature
- US20230024306A1 TOP VIA CUT FILL PROCESS FOR LINE EXTENSION REDUCTION Public/Granted day:2023-01-26
Information query
IPC分类: