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:
Oct. 25, 2016
Filed:
May. 20, 2014
Applicant:
Nanogram Corporation, Milpitas, CA (US);
Inventors:
Weidong Li, San Jose, CA (US);
Masaya Soeda, San Jose, CA (US);
Gina Elizabeth Pengra-Leung, San Jose, CA (US);
Shivkumar Chiruvolu, San Jose, CA (US);
Assignee:
NanoGram Corporation, Milpitas, CA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01B 1/20 (2006.01); B82Y 30/00 (2011.01); H01B 1/24 (2006.01); H01L 21/02 (2006.01); H01L 29/06 (2006.01); H01L 21/22 (2006.01); H01L 21/228 (2006.01); H01L 31/068 (2012.01); H01L 31/18 (2006.01); C09D 11/037 (2014.01); C09D 11/52 (2014.01); H01L 21/268 (2006.01);
U.S. Cl.
CPC ...
B82Y 30/00 (2013.01); C09D 11/037 (2013.01); C09D 11/52 (2013.01); H01B 1/20 (2013.01); H01B 1/24 (2013.01); H01L 21/02532 (2013.01); H01L 21/02601 (2013.01); H01L 21/02625 (2013.01); H01L 21/228 (2013.01); H01L 21/2225 (2013.01); H01L 29/0665 (2013.01); H01L 31/0682 (2013.01); H01L 31/1804 (2013.01); H01L 21/268 (2013.01); Y02E 10/547 (2013.01); Y02P 70/521 (2015.11);
Abstract
Silicon based nanoparticle inks are formulated with viscous polycyclic alcohols to control the rheology of the inks. The inks can be formulated into pastes with non-Newtonian rheology and good screen printing properties. The inks can have low metal contamination such that they are suitable for forming semiconductor structures. The silicon based nanoparticles can be elemental silicon particles with or without dopant.