Title (en)

THIN LAYER IGNITER ELEMENT FOR ACTIVE PYROTECHNIC MATERIALS AND METHOD FOR THE PRODUCTION THEREOF

Title (de)

DÜNNSCHICHTANZÜNDELEMENT FÜR PYROTECHNISCHE WIRKMASSEN UND VERFAHREN ZU DESSEN HERSTELLUNG

Title (fr)

ELEMENT D'ALLUMAGE A COUCHE MINCE POUR MATIERES ACTIVES PYROTECHNIQUES ET SON PROCEDE DE FABRICATION

Publication

EP 0914587 B1 20021016 (DE)

Application

EP 98929356 A 19980522

Priority

• DE 19721929 A 19970526
• DE 19732380 A 19970725
• EP 9803009 W 19980522

Abstract (en)

[origin: WO9854535A1] The thin layer igniter elements used to ignite active pyrotechnic materials generally have high ignition voltages or involve very high amounts of initialization energy. Said elements are mainly based on a purely thermal coupling of a hot material and a volatile material forming a bridging material for ignition. By using hafnium hydride and/or titanium hydride as a bridging material for ignition (2) and by employing a method of production which is compatible with semi-conductors, large quantities of ignition elements requiring low-range initialization voltages can be produced in an extremely simple manner. A hafnium hydride and/or titanium hydride decomposition process is activated at a low heating temperature, resulting in the release of reactive hydrogen and the formation of plasma. The inventive igniter elements provide simplified control circuits for passenger protection devices such as airbags in motor vehicles.

IPC 1-7

F42B 3/13; F42B 3/195

IPC 8 full level

F42B 3/12 (2006.01); C06B 43/00 (2006.01); F42B 3/13 (2006.01); F42B 3/195 (2006.01)

CPC (source: EP)

F42B 3/13 (2013.01); F42B 3/195 (2013.01)

Designated contracting state (EPC)

DE FI FR GB IT SE

DOCDB simple family (publication)

WO 9854535 A1 19981203; DE 59805957 D1 20021121; EP 0914587 A1 19990512; EP 0914587 B1 20021016; JP 2001505646 A 20010424; JP 3772312 B2 20060510

DOCDB simple family (application)

EP 9803009 W 19980522; DE 59805957 T 19980522; EP 98929356 A 19980522; JP 50020199 A 19980522