Invention Publication
- Patent Title: BEOL INTERCONNECT SUBTRACTIVE ETCH SUPER VIA
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Application No.: US17543964Application Date: 2021-12-07
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Publication No.: US20230178474A1Publication Date: 2023-06-08
- Inventor: Prasad Bhosale , Nicholas Anthony Lanzillo , Lawrence A. Clevenger , Michael Rizzolo
- 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
- Main IPC: H01L23/522
- IPC: H01L23/522 ; H01L23/528 ; H01L21/768 ; H01L21/3213 ; H01L21/311

Abstract:
Semiconductor devices including a super via connection between levels are provided. The semiconductor device can include a first interlevel dielectric layer, a back-end-of-line (BEOL) interconnect structure disposed in the first interlevel dielectric layer, a second interlevel dielectric layer disposed on a first portion of the first interlevel dielectric layer, a third interlevel dielectric layer disposed on the second interlevel dielectric layer, and a super via disposed on a second portion of the first interlevel dielectric layer, wherein a first end of the super via is connected to the BEOL interconnect structures and wherein a second end of the super via opposite the first end of the super via is a distance from the first interlevel dielectric layer larger than a height distance of the second interlevel dielectric layer.
Information query
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