Invention Application
- Patent Title: IMPLANT BLOCKING FOR A TRENCH OR FINFET WITHOUT AN ADDITIONAL MASK
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Application No.: US17462801Application Date: 2021-08-31
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Publication No.: US20220123130A1Publication Date: 2022-04-21
- Inventor: Ming-Yeh Chuang , Abbas Ali
- Applicant: Texas Instruments Incorporated
- Applicant Address: US TX Dallas
- Assignee: Texas Instruments Incorporated
- Current Assignee: Texas Instruments Incorporated
- Current Assignee Address: US TX Dallas
- Main IPC: H01L29/66
- IPC: H01L29/66 ; H01L29/78 ; H01L29/417

Abstract:
A method of fabricating an integrated circuit includes forming and patterning a hardmask over a substrate such that the patterned hardmask exposes regions of the substrate. The exposed regions are etched, thereby forming trenches and a semiconductor fin between the trenches. Prior to removing the hardmask, a photoresist layer is formed and patterned, thereby exposing a section of the semiconductor fin. A dopant is implanted into the exposed section through the hardmask.
Information query
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