Contents • • • • • • • • • • Before going to Best Free PCB design software aware? The solder pads used to be laid out on the Mylar manually.The copper lines were routed to connect the pads. Self-adhesive tape was used for creating the copper traces. Mylar sheets had per-printed and non-reproducing grid points which was an assistance to the board designer. Finally, the board was fabricated with the finished photo mask which was photo lithographically reproduced onto a photo resist.

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Printed Circuit Board Layout Software

This photo resist was coated on the copper-clad boards. However, as the complexity of the electronics circuits increased with the advancements in the technology, the manual method was no longer effective and it required a great deal of complex and tedious work.