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:
Oct. 12, 2021

Filed:

Feb. 03, 2020
Applicant:

Averatek Corporation, Santa Clara, CA (US);

Inventors:

Sunity K. Sharma, Fremont, CA (US);

Shinichi Iketani, Sunnyvale, CA (US);

Assignee:

AVERATEK CORPORATION, Santa Clara, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K 3/42 (2006.01); C23C 18/31 (2006.01); C23C 18/16 (2006.01); C23C 14/04 (2006.01); H05K 3/00 (2006.01); C23C 16/04 (2006.01);
U.S. Cl.
CPC ...
C23C 18/31 (2013.01); C23C 18/1637 (2013.01); C23C 18/1641 (2013.01); C23C 18/1642 (2013.01); C23C 14/046 (2013.01); C23C 16/045 (2013.01); H05K 3/0094 (2013.01); H05K 3/42 (2013.01);
Abstract

Methods, systems, and apparatus for coating the internal surface of nano-scale cavities on a substrate are contemplated. A first fluid of high wettability is applied to the nano-scale cavity, filling the cavity. A second fluid carrying a conductor or a catalyst is applied over the opening of the nano-scale cavity. The second fluid has a lower vapor pressure than the first fluid. The first fluid is converted to a gas, for example by heating the substrate. The gas exits the nano-scale cavity, creating a negative pressure or vacuum in the nano-scale cavity. The negative pressure draws the second fluid into the nano-scale cavity. The conductor is deposited on the interior surface of the nano-scale cavity, preferably less than 10 nm thick.


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