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:
Mar. 22, 2022

Filed:

Nov. 10, 2020
Applicant:

Infineon Technologies Austria Ag, Villach, AT;

Inventors:

Darryl Tschirhart, Torrance, CA (US);

Benjamim Tang, Rancho Palos Verdes, CA (US);

Emil Todorov, Fremont, CA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/158 (2006.01); H05K 1/18 (2006.01);
U.S. Cl.
CPC ...
H02M 3/158 (2013.01); H02M 3/1588 (2013.01); H05K 1/181 (2013.01); H05K 2201/1003 (2013.01); Y02B 70/10 (2013.01);
Abstract

A method of assembling a DC-DC converter includes: attaching first and second discrete power stage transistor dies to a first side of a substrate, the first discrete die including a high-side power transistor and the second discrete die including a low-side power transistor electrically connected to the high-side power transistor to form an output phase of the DC-DC converter; attaching an inductor to the first side of the substrate so as to electrically connect the output phase to a metal output trace on the substrate, the inductor partly covering at least one of the first and the second discrete power stage transistor dies such that each discrete power stage transistor die that is partly covered by the inductor comprises a plurality of pins that are not covered by the inductor; and visually inspecting the plurality of pins uncovered by the inductor.


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