Building a Successful Board-Test Strategy, Second Edition by Stephen Scheiber

By Stephen Scheiber

Written in a transparent and considerate type, development a winning Board-Test method, moment variation deals an built-in method of the advanced technique of constructing the attempt techniques such a lot suited for a company's profile and philosophy. This publication additionally presents finished assurance of the specifics of digital try apparatus in addition to these broader problems with administration and advertising that form a manufacturer's "image of quality."

In this re-creation, the writer provides nonetheless extra "war stories," proper examples from his personal event, to be able to advisor his readers of their decisionmaking. He has additionally up to date all technical features of the 1st version, protecting new machine and attachment applied sciences, new inspection strategies together with optical, infrared and x-ray, in addition to vectorless equipment for detecting surface-mount open-circuit board disasters. The bankruptcy on economics has been greatly revised, and the bibliography comprises the newest fabric in this subject.

*Discusses ball-grid arrays and different new units and attachment technologies
*Adds a accomplished new bankruptcy on optical, infrared, and x-ray inspection
*Covers vectorless ideas for detecting surface-mount open-circuit board mess ups

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Extra resources for Building a Successful Board-Test Strategy, Second Edition (Test and Measurement Series)

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In its purest form, concurrent engineering is an attempt to put paid to that attitude by setting forth a set of principles that maximize the likelihood that a job will be done right the first time. " Companies that have adopted this philosophy have reaped substantial benefits. In the early 1990s, for example, AT&T managed to reduce its development time for new telephone products from two years to one. Hewlett-Packard printers that once took 41/2years from drawing board to production now get there in less than half that time.

The need for familiarity with the manufacturing and test characteristics of a large number of different board types helps to explain the move to contract manufacturing. The diversity of their client base generally means that contractors have experience with problem-solving techniques that individual client companies likely have never seen. To illustrate how a fault spectrum influences strategic decisions, consider the hypothetical spectrum in Figure 1-8. Assume an overall first-pass yield of 50 percent.

In contrast, a perfect test strategy would ship 100 percent good products, even if every board and system off the manufacturing line contained defects. Of course, the economics of finding and repairing those defects might present a considerable challenge. Nevertheless, from the customer's standpoint, the result would not change. The test effectiveness in both cases (a combination of manufacturing and test processes) is 100 percent, although the strategies will likely be very different. Real manufacturing operations lie somewhere in between.

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