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Printed Circuit Net Repair Utilizing a Coaxial Cable-To-Board Pin Connection

IP.com Disclosure Number: IPCOM000101121D
Original Publication Date: 1990-Jun-01
Included in the Prior Art Database: 2005-Mar-16
Document File: 2 page(s) / 44K

Publishing Venue

IBM

Related People

LeCoz, CR: AUTHOR [+2]

Abstract

Disclosed is a method to reconstruct a deleted internal net of a printed circuit (PC) board by utilizing an insulated bifurcate connector pin with an extended tail that provides pluggability with a coaxial cable.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 100% of the total text.

Printed Circuit Net Repair Utilizing a Coaxial Cable-To-Board Pin Connection

       Disclosed is a method to reconstruct a deleted internal
net of a printed circuit (PC) board by utilizing an insulated
bifurcate connector pin with an extended tail that provides
pluggability with a coaxial cable.

      In order to repair or engineer change (EC) an internal net of a
PC board 1, a deletion must be performed at the intended pin site 2
by first removing the copper plated thru hole (PTH).  This is
accomplished, for example, by drilling a concentric hole 3 of
sufficient diameter to remove the plating or conductive liner of the
PTH.  A pin 4, with a center section 5, encapsulated in an insulation
bushing 6, is inserted and epoxied to the wall of the deleted hole 3.
An extension of the pin body is a rolled section 7 of circular cross
section to provide pluggability with a terminated coaxial cable 8.  A
ground tang 9, affixed to the cable terminator 10, is surface
soldered to a ground pad (not shown) on the PC board 1.  Pin-to-pin
communication is thus established with a fully shielded connection,
i.e., communication from the pin 11, which is inserted between the
bifurcated spring contacts 4A, to the pin 7, which is inserted into
the cable terminal 10.