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JRC produces approximately 10,000 square meters of Printed Circuit Board a year, mostly for use in JRC products. To improve the quality of this production, JRC uses a number of analysis devices and tools. However, recent miniaturization of Printed Circuit Boards has made adequate analysis difficult, and the use of scanning electron microscope (SEM), which have high magnification and high focal depth, has become necessary.

This paper explains how SEM are utilized in Printed Circuit Board analysis.

Akira Koiwa
Takashi Suzuki
Akihiko Kikuchi