US 12,230,421 B2
Hermetic terminal
Makoto Tanaka, Koka (JP); Hiroshi Kato, Koka (JP); Tetsushi Morikawa, Koka (JP); and Akira Okuno, Koka (JP)
Assigned to SCHOTT Japan Corporation, Shiga (JP)
Appl. No. 17/612,031
Filed by SCHOTT Japan Corporation, Koka (JP)
PCT Filed Jul. 14, 2020, PCT No. PCT/JP2020/027313
§ 371(c)(1), (2) Date Nov. 17, 2021,
PCT Pub. No. WO2021/015049, PCT Pub. Date Jan. 28, 2021.
Claims priority of application No. 2019-136209 (JP), filed on Jul. 24, 2019; and application No. 2020-106768 (JP), filed on Jun. 22, 2020.
Prior Publication US 2022/0230787 A1, Jul. 21, 2022
Int. Cl. H01B 17/30 (2006.01); C03C 21/00 (2006.01); C03C 29/00 (2006.01); H01B 1/02 (2006.01); H01B 17/56 (2006.01); H01R 13/52 (2006.01)
CPC H01B 17/305 (2013.01) [C03C 21/008 (2013.01); C03C 29/00 (2013.01); H01B 1/026 (2013.01); H01B 17/56 (2013.01); H01R 13/5216 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A hermetic terminal comprising:
a metal outer ring made of a low resistance conductor having a through hole;
a lead made of a low resistance conductor inserted in the through hole; and
an insulating material made of high expansion glass arranged in the through hole for sealing the metal outer ring and the lead; wherein
the insulating material has diffusion zones in which low resistance conductor ions are diffused in glass of transition regions in contact with interfaces with the metal outer ring and the lead.