Coating processes – Electrical product produced – Integrated circuit – printed circuit – or circuit board
Patent
1987-09-29
1989-10-10
Beck, Shrive
Coating processes
Electrical product produced
Integrated circuit, printed circuit, or circuit board
427123, B05D 512
Patent
active
048731234
ABSTRACT:
A flexible electrical connection, and method for making such a connection, for mounting an electronic device, such as a semiconductor chip made primarily of silicon, on an organic substrate, such as a printed circuit board made of a glass material impregnated with epoxy resin, are disclosed. The flexible electrical connection comprises a circuit line attached to the surface of the organic substrate and having a floating terminus in a relatively low adhesive area of the organic substrate where it is desired to mount the electronic device on the organic substrate. The floating terminus includes a stress relief bend, and the flexible electrical connection relieves stresses, such as thermal stresses, which may otherwise damage the physical and/or electrical connection between the electronic device and the floating terminus of the flexible electrical connection when the electronic device is mounted on the surface of the organic substrate.
REFERENCES:
patent: 2316203 (1943-04-01), Simmons
patent: 3129280 (1964-04-01), Elarde
patent: 3248779 (1966-05-01), Yuska et al.
patent: 3300630 (1967-01-01), Hartenstein
patent: 3487541 (1970-01-01), Boswell
patent: 3500549 (1970-03-01), Smith
patent: 3519890 (1970-07-01), Ashby
patent: 4026011 (1977-05-01), Walton
patent: 4026759 (1977-05-01), McBride et al.
patent: 4048438 (1977-09-01), Zimmerman
patent: 4052787 (1977-10-01), Shaheen
patent: 4295184 (1981-10-01), Roberts
patent: 4413308 (1983-11-01), Brown
patent: 4448804 (1984-05-01), Amelio et al.
patent: 4522667 (1985-06-01), Hanson
patent: 4584039 (1986-04-01), Shea
L. F. Miller, "Flexible Chip Joints", IBM Technical Disclosure Bulletin, vol. 11, No. 9, Feb. 1969, p. 1173.
P. Bakos, R. A. Pfaffroth, F. G. Rugzien, "Fabrication of Free Floating Circuitry", IBM Technical Disclosure Bulletin, vol. 23, No. 6, Nov. 1980, p. 2257.
J. J. Cuomo, R. Rosenberg, J. E. Smith, "Fabrication of Circuit Lines on Printed Circuit Boards", IBM Technical Disclosure Bulletin, vol. 26, No. 12, May 1984, p. 6334.
Canestaro Michael J.
Summa William J.
Adour David L.
Beck Shrive
Dang Vi Duong
International Business Machines - Corporation
LandOfFree
Flexible electrical connection and method of making same does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Flexible electrical connection and method of making same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flexible electrical connection and method of making same will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1956703