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Browse Prior Art Database

Column Contact Probe

IP.com Disclosure Number: IPCOM000090999D
Original Publication Date: 1969-Sep-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 31K

Publishing Venue

IBM

Related People

Till, AW: AUTHOR

Abstract

The contact arrangement is used for probing high-density printed circuitry. It facilitates the testing of all the printed circuitry at one time on a card or board. Music wire placed inside of TEFLON* tubing 1 serves as the contact probe and electrical translating member to beryllium copper tubing 2. The music wire is soldered to the inside of beryllium copper connector tubing 3. Also soldered to the inside of connector 3 is insulated wire 4 which is connected to tubing 2. Connector 3 serves to provide for easy replacement of a damaged column contact probe. Two paper epoxy panels 5 serve to retain tubing 1. Tubing 2 is on a different center distance than the music wire probes because the test equipment contacts probe the top of tubing 2 at a standard center distance.

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Column Contact Probe

The contact arrangement is used for probing high-density printed circuitry. It facilitates the testing of all the printed circuitry at one time on a card or board. Music wire placed inside of TEFLON* tubing 1 serves as the contact probe and electrical translating member to beryllium copper tubing 2. The music wire is soldered to the inside of beryllium copper connector tubing 3. Also soldered to the inside of connector 3 is insulated wire 4 which is connected to tubing 2. Connector 3 serves to provide for easy replacement of a damaged column contact probe. Two paper epoxy panels 5 serve to retain tubing 1. Tubing 2 is on a different center distance than the music wire probes because the test equipment contacts probe the top of tubing 2 at a standard center distance. When printed circuit board 6 is moved upward, the music wire column 1 buckles to the dotted line position to provide the necessary contact force with the printed circuitry. The music wire probes can be placed on centers as close as .025'' apart. *Trademark of E. I. du Pont de Nemours and Co.

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