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Chrome Artwork Standards for Substrate Optical Equipment Calibration

IP.com Disclosure Number: IPCOM000062000D
Original Publication Date: 1986-Sep-01
Included in the Prior Art Database: 2005-Mar-09
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Beauregard, MN: AUTHOR [+3]

Abstract

The pinning of metallized ceramic substrates involves the insertion of copper pins into ceramic wafers having evenly-sp holes on predetermined centers and swaging the pins. Critical tolerances, typically in millionths of an inch, for the ceramic hole diameter and location conditions must be maintained. An inspection standard that uses a chrome glass technique to measure these conditions for raw ceramic product is accomplished as follows.

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Chrome Artwork Standards for Substrate Optical Equipment Calibration

The pinning of metallized ceramic substrates involves the insertion of copper pins into ceramic wafers having evenly-sp holes on predetermined centers and swaging the pins. Critical tolerances, typically in millionths of an inch, for the ceramic hole diameter and location conditions must be maintained. An inspection standard that uses a chrome glass technique to measure these conditions for raw ceramic product is accomplished as follows.

An Electromask 2000 Pattern Generator (Manufactured by Electromask TRE, Inc.) creates a chrome print standard, etched on glass to hole diameter and location dimension of choice, which are measured using a laser interferometer by Precision Measuring Machine, Anorad (Manufactured by Anorad Inc.).

The use of a chrome glass master as the traceable standard provides a check on equipment calibration and maintenance.

Disclosed anonymously.

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