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:
Aug. 08, 2023

Filed:

Mar. 18, 2021
Applicant:

Marvell Asia Pte Ltd, Singapore, SG;

Inventors:

Runzi Chang, Saratoga, CA (US);

Bo Wang, Sunnyvale, CA (US);

Assignee:

MARVELL ASIA PTE LTD, Singapore, SG;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 27/07 (2006.01); H01L 29/78 (2006.01); H01L 29/66 (2006.01); H01L 29/73 (2006.01);
U.S. Cl.
CPC ...
H01L 27/0711 (2013.01); H01L 29/66234 (2013.01); H01L 29/66795 (2013.01); H01L 29/7302 (2013.01); H01L 29/785 (2013.01);
Abstract

A method for producing a semiconductor device, the method includes, forming, on a substrate made from a semiconductor substance, at least one bipolar junction (BJ) transistor including a first terminal connected to a first well, the first well formed in the substrate and includes a first dopant having a first dopant concentration. At least one non-BJ transistor is formed on the substrate, the non-BJ transistor includes a second terminal connected to a second well, and the second well formed in the substrate and includes a second dopant having a same polarity as the first dopant. The first dopant concentration of the BJ transistor is higher than the second dopant concentration of the non-BJ transistor.


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