Metal working – Method of mechanical manufacture – Electrical device making
Reexamination Certificate
2005-07-05
2005-07-05
Cuneo, Kamand (Department: 2841)
Metal working
Method of mechanical manufacture
Electrical device making
C174S262000, C029S852000
Reexamination Certificate
active
06912780
ABSTRACT:
A method to replace an electrical interface on a printed circuit board having a plurality of contact pads on a top surface, the contact pads being connected to conducting material extending through said circuit board. For the contact pad being replaced, drilling a hole through said printed circuit board at that location, and removing any remaining conductor material attached to the contact pad on the top board surface. Providing a replacement conductor/contact pad structure having a generally T-configuration with a stem and a head that completely surrounds the stem, wherein said head has a diameter greater than the diameter of the drilled hole. Inserting the replacement conductor/contact pad into the hole with said stem extending beyond the second surface of the board with the bottom surface of the head being in contact with the first surface of said board. A replacement conductor/contact pad on repaired board is also described.
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IBM Technical Disclosure Bulletin, vol. 23, No. 9, Feb. 1981, Defective Hole Repair/Hermetic Seal, F. H. Sarnacki.
IBM Technical Disclosure Bulletin, vol. 33, No. 1B, Jun. 1990, Printed Circuit Net Repair Utilizing a Coaxial Cable-to-Board Pin Connection, C. R. LeCoz and G. L. Williams.
Chamberlin Bruce John
Hoffmeyer Mark Kenneth
Ma Wai Mon
Nuttall Arch
Stack James R.
Cuneo Kamand
Dinh Tuan
Hogg William N.
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