The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 24, 2024

Filed:

Jun. 23, 2022
Applicant:

Intel Corporation, Santa Clara, CA (US);

Inventors:

Aaron Lilak, Beaverton, OR (US);

Sean Ma, Portland, OR (US);

Justin R. Weber, Hillsboro, OR (US);

Rishabh Mehandru, Portland, OR (US);

Stephen M. Cea, Hillsboro, OR (US);

Patrick Morrow, Portland, OR (US);

Patrick H. Keys, Portland, OR (US);

Assignee:

Intel Corporation, Santa Clara, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/822 (2006.01); H01L 21/306 (2006.01); H01L 21/311 (2006.01); H01L 21/8238 (2006.01); H01L 21/8258 (2006.01); H01L 27/092 (2006.01); H01L 29/417 (2006.01); H01L 29/66 (2006.01);
U.S. Cl.
CPC ...
H01L 21/8221 (2013.01); H01L 21/30604 (2013.01); H01L 21/31111 (2013.01); H01L 21/823814 (2013.01); H01L 21/823821 (2013.01); H01L 21/823828 (2013.01); H01L 21/823878 (2013.01); H01L 21/8258 (2013.01); H01L 27/0924 (2013.01); H01L 29/41791 (2013.01); H01L 29/66545 (2013.01);
Abstract

Stacked finFET structures including a fin having at least a first layer of semiconductor material stacked over or under a second layer of semiconductor material. The first and second layers may include a Group IV semiconductor material layer and a Group III-V semiconductor material layer, for example. A stacked finFET may include an N-type finFET stacked over or under a P-type finFET, the two finFETs may have channel portions within the different semiconductor material layers. Channel portions of the first and second layers of semiconductor material may be coupled to separate gate electrodes that are vertically aligned. Channel portions of the first and second layers of semiconductor material may be vertically separated by subfin portions of the first and second layers. Different layers of dielectric material adjacent to the subfin portions may improve electrical isolation between the channel portions, for example as a source of fixed charge or impurity dopants.


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