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. 18, 2020

Filed:

May. 12, 2017
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

Matthew S. Doyle, Chatfield, MN (US);

Joseph Kuczynski, North Port, FL (US);

Phillip V. Mann, Rochester, MN (US);

Kevin M. O'Connell, Rochester, MN (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05K 3/42 (2006.01); H05K 3/00 (2006.01);
U.S. Cl.
CPC ...
H05K 3/429 (2013.01); H05K 3/0094 (2013.01); H05K 3/0047 (2013.01); H05K 3/421 (2013.01); H05K 2201/0254 (2013.01); H05K 2201/09509 (2013.01); H05K 2201/09563 (2013.01);
Abstract

A method and associated apparatus are disclosed for forming a conductive via that extends partly through a multi-layer assembly, wherein the method comprises forming a cavity from a surface of the multi-layer assembly to a first depth. The cavity extends through a plurality of layers of the multi-layer assembly. The plurality of layers comprises a healing layer comprising a plurality of microcapsules. Forming the cavity ruptures some of the plurality of microcapsules to release encapsulated material into the cavity. The released encapsulated material defines a second depth from the surface, the second depth being closer to the surface than the first depth. The method further comprises depositing conductive material within the cavity to form the conductive via that extends to the second depth.


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