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. 20, 2021

Filed:

Dec. 19, 2018
Applicant:

Printcb Ltd., Ness-Ziona, IL;

Inventors:

Sagi Daren, Jerusalem, IL;

Yiftah Karni, Rehovot, IL;

Steve Daren, Ness-Ziona, IL;

Assignee:

PRINTCB LTD., Ness-Ziona, IL;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09D 11/52 (2014.01); C09D 11/037 (2014.01); C09D 11/033 (2014.01); C09D 11/08 (2006.01); C09D 11/36 (2014.01); C09D 11/38 (2014.01); H05K 1/09 (2006.01); H05K 3/12 (2006.01); C09D 11/322 (2014.01);
U.S. Cl.
CPC ...
C09D 11/52 (2013.01); C09D 11/033 (2013.01); C09D 11/037 (2013.01); C09D 11/08 (2013.01); C09D 11/322 (2013.01); C09D 11/36 (2013.01); C09D 11/38 (2013.01); H05K 1/097 (2013.01); H05K 3/125 (2013.01); H05K 2203/1131 (2013.01);
Abstract

The present invention provides a two-component printable conductive composition comprising, as separate components, a metallic component comprising a high melting point (HMP) metal or metal alloy powder having a mean particle size below about 15 μm; and a fluxing component comprising an organic acid and an organic solvent. The organic acid is characterized by having at least two carboxylic groups and a first logarithmic acid dissociation constant (p K) of at most about 4. These two components are manufactured and stored separately and are mixed together shortly before the combined conductive composition is used for printing. Further provided is a kit comprising the two-component composition, wherein the metallic component and the fluxing component are disposed in separate containers. The present 10 invention further provides a method for deposition and patterning of the two-component composition, comprising: mixing the metallic component with the fluxing component; and applying the obtained mixture to an insulating substrate.


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