Invention Grant
- Patent Title: Intertwined well connection and decoupling capacitor layout structure for integrated circuits
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Application No.: US16889645Application Date: 2020-06-01
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Publication No.: US11244895B2Publication Date: 2022-02-08
- Inventor: Ramesh Manchana , Sudheer Chowdary Gali , Biswa Ranjan Panda , Dhaval Sejpal , Stanley Seungchul Song
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Procopio, Cory, Hargreaves & Savitch LLP
- Main IPC: H01L23/522
- IPC: H01L23/522 ; H01L23/528 ; H01L27/06 ; H01L29/78 ; H01L29/06 ; H01L29/10 ; H01L49/02

Abstract:
A substrate tie cell on an IC is provided. The substrate tie cell includes a diffusion region. The diffusion region is a p-type diffusion region on or within a p-type substrate, an n-type diffusion region on or within an n-type well within a p-type substrate, an n-type diffusion region on or within an n-type substrate, or a p-type diffusion region on or within a p-type well within an n-type substrate. The substrate tie cell further includes a plurality of adjacent gate interconnects (n adjacent gate interconnects) extending over the diffusion region, where n≥4. The diffusion region is configured to be at one of a first voltage or a second voltage, and the gate interconnects are configured to be at an other of the first voltage or the second voltage. In one configuration, the first voltage is a power supply voltage and the second voltage is a ground voltage.
Public/Granted literature
- US20210375747A1 INTERTWINED WELL CONNECTION AND DECOUPLING CAPACITOR LAYOUT STRUCTURE FOR INTEGRATED CIRCUITS Public/Granted day:2021-12-02
Information query
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