Semiconductor bridge (SCB) igniter

Patent · Thu Jan 01 00:00:00 EST 1987

OSTI ID:866432

Schwarz, Alfred C ^[1]

---

1. Albuquerque, NM

In an explosive device comprising an explosive material which can be made to explode upon activation by activation means in contact therewith; electrical activation means adaptable for activating said explosive material such that it explodes; and electrical circuitry in operation association with said activation means; there is an improvement wherein said activation means is an electrical material which, at an elevated temperature, has a negative temperature coefficient of electrical resistivity and which has a shape and size and an area of contact with said explosive material sufficient that it has an electrical resistance which will match the resistance requirements of said associated electrical circuitry when said electrical material is operationally associated with said circuitry, and wherein said electrical material is polycrystalline; or said electrical material is crystalline and (a) is mounted on a lattice matched substrate or (b) is partially covered with an intimately contacting metallization area which defines its area of contact with said explosive material.

• Research Organization: AT&T
• DOE Contract Number: AC04-76DP00789
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4708060
• OSTI ID: 866432
• Country of Publication: United States
• Language: English

Related Subjects

semiconductor
bridge
scb
igniter
explosive
device
comprising
material
explode
activation
means
contact
therewith
electrical
adaptable
activating
explodes
circuitry
operation
association
improvement
elevated
temperature
negative
coefficient
resistivity
shape
size
sufficient
resistance
match
requirements
associated
operationally
polycrystalline
crystalline
mounted
lattice
matched
substrate
partially
covered
intimately
contacting
metallization
defines
explosive device
contact therewith
electrical circuitry
temperature coefficient
lattice matched
explosive material
elevated temperature
electrical resistance
device comprising
electrical circuit
electrical resistivity
semiconductor bridge
activation means
material sufficient
/102/