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Small Diameter Wire Fastening Arrangement

IP.com Disclosure Number: IPCOM000089790D
Original Publication Date: 1977-Dec-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 36K

Publishing Venue

IBM

Related People

Hafer, CH: AUTHOR

Abstract

This arrangement mechanically locks small diameter (1-2 mil) wires in viaducts of mounting blocks and printed-circuit boards.

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Small Diameter Wire Fastening Arrangement

This arrangement mechanically locks small diameter (1-2 mil) wires in viaducts of mounting blocks and printed-circuit boards.

Small diameter wire is very difficult to fasten to any other object. For example, 2-mil tungsten wire will pull out of solder.

A small electrically conductive taper-pin locks an end of wire 12 between the pin 10 and a mounting block 14 having a tapered hole therein. Fig. 1 shows this being used on an adhesion pull tester, where small pads and wires are bonded to wafers. The wires are 1 or 2-mil diameter, and the tester checks the bonding by pulling on the wires. The taper pin lock is a simple way of clamping the wire during the test.

Fig. 2 shows the taper pin being used on a printed-circuit board 18, where a 2-mil tungsten wire is terminated on the printed-circuit board 18 so that an electric connection is made to a conductor 20 on the circuit board 18 by both the wire 12 and the pin 10 and held by solder 22. The solder is readily applied by a conventional dipping process.

More than one wire can be locked by one pin.

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