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:
Apr. 02, 2024

Filed:

Feb. 09, 2022
Applicant:

Semiconductor Components Industries, Llc, Phoenix, AZ (US);

Inventors:

Steven M. Etter, Phoenix, AZ (US);

Yupeng Chen, San Jose, CA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 27/02 (2006.01); H01L 29/866 (2006.01);
U.S. Cl.
CPC ...
H01L 27/0248 (2013.01); H01L 29/866 (2013.01);
Abstract

In an example, a semiconductor device includes a first steering diode and a second steering diode at a top side of a region of semiconductor material, a first Zener diode buried within the region of semiconductor material, and a second Zener diode at a bottom side of the region of semiconductor material. The semiconductor device is configured as a bi-directional electrostatic discharge (ESD) structure. The first Zener diode and the first steering diodes are configured to respond to a positive ESD pulse, and the second Zener diode and the second steering diode are configured to respond to a negative ESD pulse. The steering diodes are configured to have low capacitances and the Zener diodes are configured to provide enhanced ESD protection. Other related examples and methods are disclosed herein.


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