Browse Prior Art Database

Multi-Function Ganged Probe/Holder Fixture

IP.com Disclosure Number: IPCOM000037203D
Original Publication Date: 1989-Nov-01
Included in the Prior Art Database: 2005-Jan-29
Document File: 2 page(s) / 35K

Publishing Venue

IBM

Related People

Blair, EA: AUTHOR [+4]

Abstract

A technique is described whereby a ganged probe/holder fixture combines manufacturing operations, so as to eliminate multiple tooling set-up procedures in the fabrication of probes and holders. A typical probe/ holder is used in testing integrated circuit modules.

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Multi-Function Ganged Probe/Holder Fixture

A technique is described whereby a ganged probe/holder fixture combines manufacturing operations, so as to eliminate multiple tooling set-up procedures in the fabrication of probes and holders. A typical probe/ holder is used in testing integrated circuit modules.

The multi-function ganged probe/holder fixture combines four machining operations and an assembly operation into one tool. Up to ten probes can be accommodated in the fixture at one time. The fixture enables four machining operations and an epoxy weld operation to be performed, where previously five independent handling operations were required. The four machining operations are: jig bore, milling, and two grinding operations. For reference purposes, holder 10, as shown in Fig. 1, holds probe 11 at the angle shown. Tip 13 and sleeve 14 of the probe are required to be ground to a 12.5o angle.

The first step is to load and secure the probe holders into the holes provided in the fixture. The fixture then is placed on its side so as to enable the jig boring and milling operation to cut angle 15, as shown in Fig. 2, and half circle section
16. Half circle section 16 is used in securing the probe to the holder.

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The next step loads the actual probes into the probe bank of the fixture along side of the holders, so that the probes can be securely fastened to the holders with weld epoxy. After the weld epoxy operation, the probe bank is removed from the f...