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. 22, 2019

Filed:

Mar. 01, 2019
Applicant:

Polytronics Technology Corp., Hsinchu, TW;

Inventors:

Chun Teng Tseng, Sanwan Township, TW;

David Shau Chew Wang, Taipei, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01C 7/02 (2006.01); H01C 1/14 (2006.01); G01K 7/16 (2006.01); G01R 19/165 (2006.01); H01C 17/00 (2006.01);
U.S. Cl.
CPC ...
H01C 7/021 (2013.01); G01K 7/16 (2013.01); G01R 19/16571 (2013.01); H01C 1/1406 (2013.01); H01C 17/00 (2013.01);
Abstract

A PTC device comprises a current and temperature sensing element, a first insulating layer, a second insulating layer, a first electrode layer and a second electrode layer. The current and temperature sensing element is a laminated structure comprising a first electrically conductive layer, a second electrically conductive layer and a PTC material layer. The first and second electrically conductive layers are disposed on first and second surfaces of the PTC material layer. The first and second insulating layers are disposed on the first and second electrically conductive layers. The first electrode layer is disposed on the first insulating layer and electrically connects to the first electrically conductive layer. The second electrode layer is disposed on the second insulating layer and electrically connects to the second electrically conductive layer. The first and second electrode layers serve as solder attach surfaces for soldering the PTC device onto a circuit board.


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