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:
Dec. 05, 2023

Filed:

Mar. 24, 2021
Applicant:

Cree, Inc., Durham, NC (US);

Inventors:

Michael E. Watts, Scottsdale, AZ (US);

Mario Bokatius, Chandler, AZ (US);

Jangheon Kim, Chandler, AZ (US);

Basim Noori, San Jose, CA (US);

Qianli Mu, San Jose, CA (US);

Kwangmo Chris Lim, San Jose, CA (US);

Marvin Marbell, Morgan Hill, CA (US);

Assignee:

Wolfspeed, Inc., Durham, NC (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 23/66 (2006.01); H01L 23/00 (2006.01); H01L 29/20 (2006.01); H01L 29/417 (2006.01); H01L 29/778 (2006.01);
U.S. Cl.
CPC ...
H01L 23/66 (2013.01); H01L 24/49 (2013.01); H01L 29/2003 (2013.01); H01L 29/41775 (2013.01); H01L 29/7786 (2013.01); H01L 2223/6611 (2013.01); H01L 2223/6616 (2013.01); H01L 2223/6655 (2013.01); H01L 2223/6683 (2013.01); H01L 2224/49107 (2013.01); H01L 2924/13064 (2013.01); H01L 2924/1421 (2013.01); H01L 2924/30111 (2013.01);
Abstract

RF amplifiers are provided that include an interconnection structure and a Group III nitride-based RF amplifier die that is mounted on top of the interconnection structure. The Group III nitride-based RF amplifier die includes a semiconductor layer structure. A plurality of unit cell transistors are provided in an upper portion of the semiconductor layer structure, and a gate terminal, a drain terminal and a source terminal are provided on a lower surface of the semiconductor layer structure that is adjacent the interconnection structure.


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