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Pressure Distribution Measuring Technique for Lamination System

IP.com Disclosure Number: IPCOM000060098D
Original Publication Date: 1986-Feb-01
Included in the Prior Art Database: 2005-Mar-08
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Jephson, JR: AUTHOR [+2]

Abstract

A carbonless paper sheet is used to measure the pressure distribution produced by the lamination system of a multilayer ep glass printed circuit board.

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Pressure Distribution Measuring Technique for Lamination System

A carbonless paper sheet is used to measure the pressure distribution produced by the lamination system of a multilayer ep glass printed circuit board.

In one application, the carbonless paper sheet is inserted between one of the planishing plates of the laminator and an outer surface of the workpiece juxtaposed to the planishing plate. The resulting surface impression on the paper sheet is indicative of the pressure distribution over the surface area of the workpiece and is appropriately correlated. The workpiece can be the laminates to be laminated of an actual work product or that of a specimen of the work product or that of a simulated or dummy specimen. As such, the technique provides an evaluation of the workpiece or specimen directly.

In other applications, the technique is used to evaluate press pad materials, as well as the planishing plates per se with or without the presence of the workpiece in the system. The flatness and parallelism of the entire laminating system can thus be obtained, which in turn, if desired, may also be used to evaluate the workpiece indirectly.

Disclosed anonymously.

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