How should I draw the various layers of the Allegro pad pins?

shijizai

How should I draw the various layers of the Allegro pad pins? [Copy link]

1. How should I draw each layer when drawing pads in Allegro ? How should I draw surface mount pads? How should I draw through-hole pads? Mainly, I don’t know how to get the size of each layer. Is there any book to refer to?
2. What is the relationship between the actual size of surface mount pads and regular pads, thermal pads, anti pads, soldermask, and pastemask? How to get the size of other layers based on the actual pad size?
3. What is the relationship between the actual size of through-hole pads and regular pads, thermal pads, anti pads, soldermask, and pastemask? How to get the size of other layers based on the actual pad size?

okhxyyo

https://download.eeworld.com.cn/detail/%E5%A4%A7%E7%82%AE_1980/607706

This book can meet your needs. It is written in great detail. I personally bought the paper version.

https://en.eeworld.com/bbs/thread-465862-1-1.html This is the video tutorial of the library source

shijizai

okhxyyo published on 2020-2-26 15:14 https://download.eeworld.com.cn/detail/%E5%A4%A7%E7%82%AE_1980/607706 This book can meet your needs...

Your book does not mention the size relationship between the physical pad, regular pad, thermal pad, anti pad, soldermask, and pastemask layers. The most this book talks about about pads is the naming rules and the steps for drawing pads.