Thin film bridge initiator and method therefor
US4729315A · kind A · utility
62Cited by
7References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 17, 1986 |
| Grant date | Mar 8, 1988 |
| Priority date | — |
| Expiry date | Dec 17, 2006 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF42B3/13
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A thin film bridge initiator is mounted on a header for use in a detonator where a primer is activated by heat from the thin film. The initiator includes a substrate which carries a pair of metallic beam-type leads connected by a thin film bridge which activates the adjacent primer. The beam-type leads are affixed (welded) to a pair of electrical pins which are on adjacent sides of a slot in the header. The entire structure is very cost effective, reliable and provides fast functioning and safety. In addition, a process of manufacturing several bridge initiators at one time on a single wafer is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.