Semiconductor devices having dipole-inducing elements

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United States of America Patent

PATENT NO 11855098
APP PUB NO 20230073400A1
SERIAL NO

17986379

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Abstract

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In an embodiment, a method includes: forming a gate dielectric layer on an interface layer; forming a doping layer on the gate dielectric layer, the doping layer including a dipole-inducing element; annealing the doping layer to drive the dipole-inducing element through the gate dielectric layer to a first side of the gate dielectric layer adjacent the interface layer; removing the doping layer; forming a sacrificial layer on the gate dielectric layer, a material of the sacrificial layer reacting with residual dipole-inducing elements at a second side of the gate dielectric layer adjacent the sacrificial layer; removing the sacrificial layer; forming a capping layer on the gate dielectric layer; and forming a gate electrode layer on the capping layer.

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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
Chang, Weng Hsinchu, TW 114 1685
Chen, Zoe Taipei, TW 8 27
Huang, Ming-Chi Zhubei, TW 33 236
Hung, Cheng-Lung Hsinchu, TW 94 245
Lee, Da-Yuan Jhubei, TW 128 1019
Lee, Wei-Chin Taipei, TW 25 92
Su, Ching-Hwanq Tainan, TW 74 335
Tsai, Cheng-Yen New Taipei, TW 49 163

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