Invention Grant
- Patent Title: Front-end-of-line (FEOL) through semiconductor-on-substrate via (TSV)
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Application No.: US17869860Application Date: 2022-07-21
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Publication No.: US12046537B2Publication Date: 2024-07-23
- Inventor: Yun-Hsiang Wang , Chun Lin Tsai , Jiun-Lei Jerry Yu , Po-Chih Chen
- Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
- Applicant Address: TW Hsin-Chu
- Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
- Current Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
- Current Assignee Address: TW Hsinchu
- Agency: Eschweiler & Potashnik, LLC
- The original application number of the division: US16936654 2020.07.23
- Main IPC: H01L23/48
- IPC: H01L23/48 ; H01L21/768 ; H01L23/522

Abstract:
Various embodiments of the present application are directed towards an integrated circuit (IC) chip comprising a front-end-of-line (FEOL) through semiconductor-on-substrate via (TSV), as well as a method for forming the IC chip. In some embodiments, a semiconductor layer overlies a substrate. The semiconductor layer may, for example, be or comprise a group III-V semiconductor and/or some other suitable semiconductor(s). A semiconductor device is on the semiconductor layer, and a FEOL layer overlies the semiconductor device. The FEOL TSV extends through the FEOL layer and the semiconductor layer to the substrate at a periphery of the IC chip. An intermetal dielectric (IMD) layer overlies the FEOL TSV and the FEOL layer, and an alternating stack of wires and vias is in the IMD layer.
Public/Granted literature
- US20220359346A1 FRONT-END-OF-LINE (FEOL) THROUGH SEMICONDUCTOR-ON-SUBSTRATE VIA (TSV) Public/Granted day:2022-11-10
Information query
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