Surface-connectable semiconductor bridge elements and devices in

Details Surface-connectable semiconductor bridge elements and devices in Surface-connectable semiconductor bridge elements and devices in

1996-12-23

2000-04-25

Whitehead, Jr., Carl

Active solid-state devices (e.g., transistors, solid-state diode

Housing or package

With contact or lead

257778, 257786, H01L 2348

Patent

active

06054760&

ABSTRACT:
A semiconductor element, e.g., a semiconductor bridge element (30), is surface mountable as it has thereon a metal layer comprised of metal lands (44) and electrical connectors 45a, 45b and 45c) which terminate in flat electrical contacts (47) on the back surface (35) of the element. Optionally, the element may also contain back-to-back zener diodes (46a, 46b) to provide unbiased protection against electrostatic discharge. When configured as a semiconductor bridge element (30), the element, among other uses, finds use as an igniter (13) for an explosive element. The elements may be made by a method including a cross-cut technique in which grooves (60) cut in the front surface (58) of a silicon wafer substrate (56) intersect grooves (64) cut in the back surface (62) of the wafer. The intersecting grooves (60,64) form a plurality of apertures in the wafer (56), the apertures and grooves helping to define a plurality of dies having side surfaces. A dielectric layer (48) is deposited on the wafer (56) and a polysilicon film (52) is deposited over the dielectric layer (48). A metal layer (44, 45a-45c, and 47) is then deposited on the wafer while it is still intact to provide an electrical connection from the top surface (34) of element (30) along the side surfaces (66a, 66b and 66c, and 68a, 68b and 66c) to the bottom surface (35) to constitute the dies as the semiconductor elements (30). The elements (30) are separated and the electrical contacts (47) of a given element can be mounted directly to a header (36) or the like by soldering, without need for connector wires (14).

REFERENCES:
patent: 3196041 (1965-07-01), McNulty
patent: 3292537 (1966-12-01), Goss, Jr.
patent: 3366055 (1968-01-01), Hollander, Jr.
patent: 3763782 (1973-10-01), Bendler et al.
patent: 4044222 (1977-08-01), Kestenbaum
patent: 4381692 (1983-05-01), Weintraub
patent: 4393779 (1983-07-01), Brede et al.
patent: 4405933 (1983-09-01), Avery
patent: 4559875 (1985-12-01), Marshall
patent: 4649821 (1987-03-01), Marshall et al.
patent: 4649875 (1987-03-01), Mirone et al.
patent: 4700263 (1987-10-01), Marshall et al.
patent: 4708060 (1987-11-01), Bickes, Jr. et al.
patent: 4729315 (1988-03-01), Proffit et al.
patent: 4843964 (1989-07-01), Bickes, Jr. et al.
patent: 4930418 (1990-06-01), Folsom
patent: 4934804 (1990-06-01), Folsom
patent: 4976200 (1990-12-01), Benson et al.
patent: 5010822 (1991-04-01), Folsom
patent: 5029529 (1991-07-01), Mandigo et al.
patent: 5036767 (1991-08-01), Folsom et al.
patent: 5080016 (1992-01-01), Osher
patent: 5113764 (1992-05-01), Mandigo et al.
patent: 5173958 (1992-12-01), Folsom et al.
patent: 5179248 (1993-01-01), Hartman et al.
patent: 5206455 (1993-04-01), Williams et al.
patent: 5230287 (1993-07-01), Arrell, Jr. et al.
patent: 5243492 (1993-09-01), Marquit et al.
patent: 5255277 (1993-10-01), Carvalho
patent: 5285727 (1994-02-01), Reams, Jr. et al.
patent: 5294567 (1994-03-01), Dorfman et al.
patent: 5309841 (1994-05-01), Hartman et al.
patent: 5327834 (1994-07-01), Atkeson
patent: 5334306 (1994-08-01), Dautremont-Smith
patent: 5347159 (1994-09-01), Khandros et al.
patent: 5359192 (1994-10-01), Williams et al.
patent: 5385097 (1995-01-01), Hruska et al.
patent: 5403036 (1995-04-01), Zakula et al.
patent: 5454320 (1995-10-01), Hilden et al.
patent: 5473623 (1995-12-01), Fahey et al.
patent: 5500546 (1996-03-01), Marum et al.
patent: 5684677 (1997-11-01), Uchida et al.
Brochure for "Conventional SCB" by Quantic Industries, Inc.--all pages.

Affiliated with

Also associated with

Rating

Surface-connectable semiconductor bridge elements and devices in does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Surface-connectable semiconductor bridge elements and devices in, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Surface-connectable semiconductor bridge elements and devices in will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-995433