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Nihon Almit: solderer of fortune: Sawamura Tsuneo's relentless pursuit of the soldering...

By Kazuhiko, Fukunaga
Publication: Look Japan
Date: Monday, April 1 2002

A single mobile phone unit has approximately 800 parts. The parts are connected using solder, a tin-lead alloy, at some 2,000 points. A disconnection or a short circuit at any of the points renders the unit useless. If the problem is one that simply makes conversations impossible, using a new unit is sufficient, but some problems can cause the phone to ignite.

And what if the product is a car? A loose connection somewhere in the wiring of the electronic circuits that control the engine or brakes, and the car will very likely suddenly start to run. In fact, many recalls

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