Perspectives by Clyde Coombs
Upon joining Hewlett-Packard in 1959, Clyde Coombs developed the plated-through-hole process that became the basis for printed circuit production for the next 40-plus years. At the same time, he started the California Circuits Association, to allow West Coast printed circuit fabricators and users to meet and discuss mutual issues. In 1967 he edited the first edition of the "Printed Circuits Handbook" published by McGraw-Hill. With its sixth edition, published in late 2007, it has grown from 16 chapters, in the first edition, to 64--representing the development and increasing complexity of printed circuit technology. It has been translated, used around the world and is considered the most influential reference on the total printed circuit process. Although now retired from HP, Coombs continues to consult, edit and contribute material to industry literature.

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