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.
Patent No.:
Date of Patent:
May. 13, 2025
Filed:
Sep. 01, 2022
Applicant:
Dell Products L.p., Round Rock, TX (US);
Inventors:
Sandor Farkas, Round Rock, TX (US);
Bhyrav Mutnury, Austin, TX (US);
Assignee:
Dell Products L.P., Round Rock, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K 1/11 (2006.01); H05K 3/00 (2006.01); H05K 3/40 (2006.01);
U.S. Cl.
CPC ...
H05K 1/115 (2013.01); H05K 3/0047 (2013.01); H05K 3/4038 (2013.01); H05K 2201/09563 (2013.01); H05K 2203/0207 (2013.01);
Abstract
A printed circuit board includes metal layers, a metalized circuit via interconnecting a first one of the metal layers and a second one of the metal layers, and a back-drill hole drilled to remove metalization of the circuit via from a third metal layer adjacent to the second metal layer to a fourth metal layer at a first surface of the printed circuit board. The back-drill hole has a profile that includes a first undercut at a bottom of the first back-drill hole.