Source and drain isolation for CMOS nanosheet with one block mask

SC Seo, CH Lee, OK Injo - US Patent 10,325,820, 2019 - Google Patents
HOIL 21/70(2006. 01) HOIL 21/8238 (2006. 01) HOIL 29/06(2006. 01) HOIL 29/66(2006. 01)
HOIL 29/165(2006. 01) HOIL 27/092(2006. 01) US CI. CPC HOIL 21/823878 (2013. 01); …

Bottom channel isolation in nanosheet transistors

RH Chao, CH Lee, CW Yeung, J Zhang - US Patent 10,804,410, 2020 - Google Patents
Provided is a nanosheet semiconductor device. In embodiments of the invention, the
nanosheet semiconductor device includes a channel nanosheet formed over a substrate …

Multiple work function nanosheet field effect transistor using sacrificial silicon germanium growth

T Ando, CH Lee, P Hashemi - US Patent 10,930,762, 2021 - Google Patents
(57) ABSTRACT A method of forming a semiconductor device that includes forming a stack
of nanosheets composed of a semiconductor material; and forming a sacrificial layer of a …

Method and structure of fabricating I-shaped silicon germanium vertical field-effect transistors

CH Lee, K Cheng, J Li, P Xu - US Patent 10,439,044, 2019 - Google Patents
A method for manufacturing a semiconductor device includes forming a first semiconductor
layer having a first concentration of germanium on a semiconductor substrate, a second …

Method and structure of fabricating I-shaped silicon vertical field-effect transistors

CH Lee, K Cheng, J Li, P Xu - US Patent 10,777,658, 2020 - Google Patents
A method for manufacturing a semiconductor device includes forming a first silicon
germanium layer on a semiconductor substrate, forming a silicon layer on the first silicon …

Source and drain isolation for CMOS nanosheet with one block mask

SC Seo, CH Lee, OK Injo - US Patent 10,804,165, 2020 - Google Patents
Techniques for source/drain isolation in nanosheet devices are provided. In one aspect, a
method of forming a nanosheet device includes: forming an alternating series of …

Silicon residue removal in nanosheet transistors

Z Bi, TS Devarajan, NJ Loubet, B Miao… - US Patent …, 2021 - Google Patents
(57) ABSTRACT A method for forming a nanosheet semiconductor device includes forming
a nanosheet stack comprising channel nanosheets. The method includes depositing silicon …

Nanosheet transistor device with bottom isolation

R Xie, VS Basker, AM Greene, P Montanini - US Patent 11,387,319, 2022 - Google Patents
A method of forming a nanosheet transistor device is provided. The method includes forming
a segment stack of alternating intermediate sacrificial segments and nanosheet segments …

Nanosheet transistor having wrap-around bottom isolation

R Xie, L Yu, H Wu, K Cheng - US Patent 11,189,713, 2021 - Google Patents
Embodiments of the invention are directed to a method of performing fabrication operations
to form a nanosheet field effect transistor (FET) device. The fabrication operations include …

Oxide isolated fin-type field-effect transistors

R Bao, H Jagannathan, PC Jamison… - US Patent 11,094,801, 2021 - Google Patents
According to an embodiment of the present invention, a semiconductor structure includes a
semiconductor substrate and a plurality of fins located on the semiconductor substrate. The …