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Fixture for Testing Circuit Cards

IP.com Disclosure Number: IPCOM000037447D
Original Publication Date: 1989-Jan-01
Included in the Prior Art Database: 2005-Jan-29
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Dishon, Y: AUTHOR [+2]

Abstract

Components and modules on circuit cards can be made readily accessible for testing or analysis by providing an edge-supporting fixture for a circuit board having zero insertion force (ZIF) connectors into which the circuit cards are placed.

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This is the abbreviated version, containing approximately 100% of the total text.

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Fixture for Testing Circuit Cards

Components and modules on circuit cards can be made readily accessible for testing or analysis by providing an edge-supporting fixture for a circuit board having zero insertion force (ZIF) connectors into which the circuit cards are placed.

In the figure, base 1 has fixed thereon a pair of slotted, parallel columns 2 with the slots 3 facing each other and spaced to accept a circuit board 4 on edge. Horizontal member 5 extends between the bases of the columns and is also slotted to receive the bottom edge of board 4. Columns 2 may be given lateral stability by triangular braces 6.

The circuit board has a plurality of ZIF connectors 7 whose pins extend into the board and whose contacts are operated to close on connector pads 8 of circuit cards 9 inserted in connector 7. Slotted struts 10 provide card support at the outboard ends and one or more fans 11 cool energized card components. Terminal strips 12 enable connection between external power supplies and fans and ZIF connectors.

ZIF connectors have their pins inserted into either side of board 4 at convenient intervals to permit access with test probes to the surfaces and components of the inserted cards. Supplemental electrical wires and cables are used between ZIF connectors and pins to interconnect cards as necessary for testing.

Disclosed anonymously.

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