US 12,135,247 B2
Electroconductive film, method for manufacturing same, temperature sensor film, and method for manufacturing same
Satoshi Yasui, Ibaraki (JP); Kazuhiro Nakajima, Ibaraki (JP); and Kodai Miyamoto, Ibaraki (JP)
Assigned to NITTO DENKO CORPORATION, Ibaraki (JP)
Appl. No. 17/765,070
Filed by NITTO DENKO CORPORATION, Ibaraki (JP)
PCT Filed Sep. 16, 2020, PCT No. PCT/JP2020/035027
§ 371(c)(1), (2) Date Mar. 30, 2022,
PCT Pub. No. WO2021/065504, PCT Pub. Date Apr. 8, 2021.
Claims priority of application No. 2019-181491 (JP), filed on Oct. 1, 2019.
Prior Publication US 2022/0390290 A1, Dec. 8, 2022
Int. Cl. G01K 7/18 (2006.01); G01K 7/16 (2006.01)
CPC G01K 7/183 (2013.01) [G01K 2007/163 (2013.01); G01K 2217/00 (2013.01)] 9 Claims
OG exemplary drawing
 
1. An electroconductive film for a temperature sensor, the electroconductive film comprising: a flexible substrate including a resin film; and metal thin-film disposed on a first principal surface of the flexible substrate, wherein
a thickness of the flexible substrate is 1 mm or less, and
an absolute value |H2−H1| of difference between H1 and H2 is 0.10% or less, wherein H1 is a dimensional change rate when the electroconductive film is heated at 150° C. for 25 minutes, and H2 is a dimensional change rate when a film obtained by removing the metal thin-film from the electroconductive film is heated at 150° C. for 25 minutes;
wherein the flexible substrate includes an underlying layer formed of an inorganic thin-film, and the underlying layer is in direct contact with the metal thin-film.