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QICID: 15396
Title: Fly Height Tester Measurement Error Reduction: Case Study
Copyright: 2001, Marcel Dekker, Inc. and ASQ
Author: Paxton, Ken
Organization: Read-Rite Corporation, Fremont, CA
Subject: Measurement error,Computers,Case study,Repeatability and reproducibility studies (R&R),Variation;
Series: Quality Engineering, Vol. 14, No. 2, December 2001, pp. 245-251
Abstract: [This abstract is based on the author's abstract.] Fly height testers measure the spacing between read-write heads from a computer hard drive and a glass test disk. In 1997 an engineering team investigated methods of reducing errors in these measurements. Studies focused on variation contributed by the optical sensor, the mechanical loader, and the tool/operator components of the test. Following analysis of test results, tools were modified, operators were retrained, and the test procedure was revised to provide greater precision. A standard gauge reproducibility and repeatability method already in use was revised for operator certification and an ongoing monitor was established.
Number of pages: 7
Price for ASQ Members: $5.00
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