Browse Prior Art Database

Strippable Transmission Line

IP.com Disclosure Number: IPCOM000093673D
Original Publication Date: 1966-Jan-01
Included in the Prior Art Database: 2005-Mar-06
Document File: 2 page(s) / 39K

Publishing Venue

IBM

Related People

Baffaro, L: AUTHOR

Abstract

In order to make changes in a printed circuit board without using coaxial wires, thin laminate 11 having transmission lines 13 is made. Laminate 11 has a grid of holes 14 which fit on grid pins in the printed circuit board. Thus, laminate 11 can be mounted with proper register for the changes after the wiring deletions in the board have been conventionally made. For proper impedance, transmission lines 13 have a signal line sandwiched between two wider ground lines with insulating plastic separating and encasing the lines. Signal line tabs 15 have holes 17 adapted to fit over the desired pins. Ground line tabs 19 have holes 21 adapted to fit on the desired pins. Each transmission line is scored along its entire perimeter so that slits 23 and breakable connections 25 result.

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Strippable Transmission Line

In order to make changes in a printed circuit board without using coaxial wires, thin laminate 11 having transmission lines 13 is made. Laminate 11 has a grid of holes 14 which fit on grid pins in the printed circuit board. Thus, laminate 11 can be mounted with proper register for the changes after the wiring deletions in the board have been conventionally made. For proper impedance, transmission lines 13 have a signal line sandwiched between two wider ground lines with insulating plastic separating and encasing the lines. Signal line tabs 15 have holes 17 adapted to fit over the desired pins. Ground line tabs 19 have holes 21 adapted to fit on the desired pins. Each transmission line is scored along its entire perimeter so that slits 23 and breakable connections 25 result. After laminate 11 is placed on the printed circuit board, each terminal tab is soldered to its pin. Then, the residual laminate is removed, providing discrete lines wired point to point and access to other wiring of the board for other deletions.

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