Electronic control module having fluid-tight seals of a polymer

Details Electronic control module having fluid-tight seals of a polymer Electronic control module having fluid-tight seals of a polymer

1996-09-20

1997-11-18

Kincaid, Kristine L.

Electricity: conductors and insulators

Boxes and housings

Hermetic sealed envelope type

257710, 257729, 174 522, 174 523, H01L 2302

Patent

active

056890893

ABSTRACT:
An electronic control module (10) includes a package substrate (12) having an interior cavity (28) through which a package lead (22) traverses. The interior cavity (28) is filled with an expandable polymer material (34). The expandable polymer material (34) is constrained within the cavity by a pressure resistive layer (32, 35) that overlies expandable polymer material (34) In one embodiment, an epoxy layer (32) forms an upper surface of the interior cavity (28). The expandable polymer material (34) is responsive to a fluid, such that upon contact with a fluid diffusing along the package lead (22), the expandable polymer material (34) will swell and form a fluid-tight pressure seal around the package lead (22). The fluid-tight pressure seal prevents the fluid from diffusing to interior portions of the electronic control module (10) and causing the failure of electronic components (18) mounted within the electronic module (10).

REFERENCES:
patent: 3900126 (1975-08-01), Ishikawa et al.
patent: 3911744 (1975-10-01), Edwards
patent: 4490614 (1984-12-01), Peerenboom
patent: 5096206 (1992-03-01), Andre et al.
patent: 5209368 (1993-05-01), Bradenbaugh
patent: 5210769 (1993-05-01), Seidel et al.
patent: 5218304 (1993-06-01), Kinlen et al.
patent: 5256901 (1993-10-01), Ohashi et al.
patent: 5342065 (1994-08-01), Blanke
Dow Corning product information material, 1993, 1991.

Affiliated with

Also associated with

Rating

Electronic control module having fluid-tight seals of a polymer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electronic control module having fluid-tight seals of a polymer , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electronic control module having fluid-tight seals of a polymer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1567917