Method for forming semiconductor device structure

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United States of America Patent

PATENT NO 9799665
SERIAL NO

15603923

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Abstract

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A method for forming a semiconductor device structure is provided. The method includes forming a mask layer over a substrate. The method includes forming a first isolation structure and a second isolation structure passing through the mask layer and penetrating into the substrate. The method includes thinning the mask layer to expose a first portion of the first isolation structure and a second portion of the second isolation structure. The method includes partially removing the first portion, the second portion, the third portion, and the fourth portion. The method includes removing the thinned mask layer. The method includes forming a first gate over the substrate and between the first isolation structure and the second isolation structure. The method includes forming a dielectric layer over the first gate. The method includes forming a second gate over the dielectric layer and above the first gate.

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Patent Owner(s)

  • TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Liu, Shih-Chang Kaohsiung, TW 305 2186
Min, Chung-Chiang Zhubei, TW 38 113
Wu, Chang-Ming New Taipei, TW 99 619
Yang, Tsung-Hsueh Taichung, TW 24 95

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