US 12,281,885 B2
Igniter for passenger protection devices and method for producing same
Thomas Pfeiffer, Kumhausen (DE); Stanislav Relich, Horni Bojanovice (CZ); and Michal Chromec, Lanskroun (CZ)
Assigned to SCHOTT AG, Mainz (DE)
Filed by SCHOTT AG, Mainz (DE)
Filed on Oct. 28, 2022, as Appl. No. 17/976,524.
Application 17/976,524 is a continuation of application No. PCT/EP2021/059637, filed on Apr. 14, 2021.
Claims priority of application No. 20 2020 102 354.3 (DE), filed on Apr. 28, 2020; and application No. 20171737 (EP), filed on Apr. 28, 2020.
Prior Publication US 2023/0047377 A1, Feb. 16, 2023
Int. Cl. F42B 3/11 (2006.01); B60R 21/26 (2011.01); C23C 10/00 (2006.01); C23C 28/02 (2006.01); C25D 3/48 (2006.01); C25D 5/34 (2006.01); F42B 3/195 (2006.01)
CPC F42B 3/11 (2013.01) [B60R 21/26 (2013.01); C23C 10/00 (2013.01); C23C 28/023 (2013.01); C25D 3/48 (2013.01); C25D 5/34 (2013.01); F42B 3/195 (2013.01); B60R 2021/26029 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An igniter of a passenger protection device, the igniter comprising:
a round, metal pin extending along a length thereof toward a contact end,
wherein the contact end is not flat;
a gold coating on a section along the length and about a circumference of the metal pin,
a plateau region of the gold coating having a maximum thickness between 0.20 μm and 0.80 μm,
wherein the maximum thickness varies by at most 40% of the maximum thickness,
wherein the plateau region has a length between 2 mm and 6 mm and is located at least 1 mm from the contact end,
wherein the gold coating has a thickness that increases, in a direction from the contact end towards the plateau region, by a slope of 0.1 to 0.3 μm per mm, and
wherein the plateau region is configured to be electrically contacted.