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:
Apr. 19, 2016
Filed:
Feb. 25, 2011
Applicants:
Lex Kosowsky, San Jose, CA (US);
Robert Fleming, San Jose, CA (US);
Bhret Graydon, San Jose, CA (US);
Daniel Vasquez, San Jose, CA (US);
Inventors:
Lex Kosowsky, San Jose, CA (US);
Robert Fleming, San Jose, CA (US);
Bhret Graydon, San Jose, CA (US);
Daniel Vasquez, San Jose, CA (US);
Assignee:
LITTELFUSE, INC., Chicago, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K 1/18 (2006.01); H05K 1/02 (2006.01);
U.S. Cl.
CPC ...
H05K 1/0254 (2013.01); H05K 1/0259 (2013.01); H05K 1/181 (2013.01); H05K 2201/0738 (2013.01); H05K 2203/304 (2013.01);
Abstract
Printed circuit boards including voltage switchable dielectric materials (VSDM) are disclosed. The VSDMs are used to protect electronic components, arranged on or embedded in printed circuit boards, against electric discharges, such as electrostatic discharges or electric overstresses. During an overvoltage event, a VSDM layer shunts excess currents to ground, thereby preventing electronic components from destruction or damage.