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Years ago circuit engineers would send
their design to manufacturers as a set of films. Each film would represent one layer of the
circuit board. The fabricator would
optically modify the film to try to compensate for the distortion inherent in
manufacturing operations. Invariably,
scrap would result from inability to control humidity and other factors that
cause warpage and deformation of the film. In the 80's GCA pioneered replacement of
the film with an electronic representation of the circuit. GCA's software
was used to edit the electronic data and to digitally compensate for
manufacturing distortion. The result
was a reduced cycle time and much better fabrication yields. Circuit board fabrication times went from
several weeks to under 1/2 day. |
Circuit Board “Computer Aided Manufacturing” ( |
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