Principle of screen printing adjustment of EDA (cadence and AD) software

The following are the principles and conventional recommended sizes for silk screen tag number adjustment .

（1） The silk screen tag number is not solder resistant , Missing after silk screen production .

（2） The silk screen tag number is clear , Font size recommended width / The word height dimension is 4/25mil、5/30mil、6/45mil.

（3） Maintain unity of direction , Usually one piece PCB Do not place in more than two directions , The recommended letters are left or bottom , Pictured 11-21 Shown .

chart 1 Silk screen tag number display direction

 
（4） For some silk screen signs at the mercy of , You can use to place 2D Guide lines or place squares to mark , Easy to read , Pictured 11-22 Shown .

chart 2 Auxiliary lines and blocks

 
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