Jerry A Moore

US Patent:

20170233541, Aug 17, 2017

Filed:

Feb 12, 2016

Appl. No.:

15/043460

Inventors:

- Berwyn PA, US
Barry C. Mathews - Fremont CA, US
Michael A. Oar - San Francisco CA, US
Miguel A. Morales - Fremont CA, US
Leonard Henry Radzilowski - Palo Alto CA, US
James Paul Scholz - Mechanicsburg PA, US
Bruce Foster Bishop - Aptos CA, US
Jerry L. Moore - Mechanicsburg PA, US

Assignee:

Tyco Electronics Corporation - Berwyn PA

International Classification:

C08J 7/04
C23C 4/129
B05D 1/00
B05D 1/30
B05D 1/02
B05D 1/18

Abstract:

A primer layer comprising a polyvinyl butyral resin enhances adhesion of silver nanoparticle inks onto plastic substrates. The primer layer comprises a polyvinyl butyral (PVB) resin having a polyvinyl alcohol content between about 18 wt. % to about 21 wt. %. The PVB resin may also have a glass transition temperature greater than about 70 C. Optionally, the PVB primer layer may further be enhanced by cross-linking using a melamine-formaldehyde resin. Conductive traces formed on plastic substrates having the PVB primer layer exhibit an acceptable cross-hatch adhesion rating with little to no degradation of adhesion being observed after exposure to 4-days salt mist aging or 1-day high humidity aging.

US Patent:

20170236610, Aug 17, 2017

Filed:

Feb 12, 2016

Appl. No.:

15/043468

Inventors:

- Berwyn PA, US
Barry C. Mathews - Fremont CA, US
Miguel A. Morales - Fremont CA, US
Leonard Henry Radzilowski - Palo Alto CA, US
Michael A. Oar - San Francisco CA, US
Ranjan Deepak Deshmukh - Mechanicsburg PA, US
James Paul Scholz - Mechanicsburg PA, US
Bruce Foster Bishop - Aptos CA, US
Jerry L. Moore - Mechanicsburg PA, US

Assignee:

Tyco Electronics Corporation - Berwyn PA

International Classification:

H01B 1/02
C09D 11/037
H01B 13/00
C09D 11/52

Abstract:

An alkoxysilane comprising a functional group is used as an additive in the silver nanoparticle ink, and as an adhesion promoter (or primer layer) on the surface of the substrate in order to enhance the adhesion of silver nanoparticle inks on temperature-sensitive plastic substrates. The combination of the functionalized alkoxysilane both in the ink and on the substrate's surface provides enhanced adhesion after annealing the ink at a low temperature. The adhesion of the annealed films improves from a 0B-3B level to 4B-5B when tested according to ASTM D3359. No degradation of adhesion and no change of color are observed after aging the annealed films in a humidity chamber.