Browse Prior Art Database

Molded Probe Panels with Metal Inserts

IP.com Disclosure Number: IPCOM000074984D
Original Publication Date: 1971-Jul-01
Included in the Prior Art Database: 2005-Feb-24
Document File: 2 page(s) / 44K

Publishing Venue

IBM

Related People

Lorenz, EJ: AUTHOR [+2]

Abstract

Probe panels 10 contain a precision pattern of holes 12 registering with test probing points of printed circuit parts. The panels are usually made by molding plastic. However, most plastic media are subject to variations in shrinkage from lot-to-lot which impose limits on hole spacing tolerances.

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Molded Probe Panels with Metal Inserts

Probe panels 10 contain a precision pattern of holes 12 registering with test probing points of printed circuit parts. The panels are usually made by molding plastic. However, most plastic media are subject to variations in shrinkage from lot-to-lot which impose limits on hole spacing tolerances.

To reduce these stresses, the plastic 14 can be injection molded over a predrilled or punched thin metal form 16. Alternately holes 18 in a thicker metal form 20 can be filled with molded plastic. In either case, the probe guiding holes 12 can be formed by placing the part in a mold and reflowing or coining the plastic to required tolerances.

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