Are librarians adding a pin one dot to tiny comps?
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Category: General
Forum Name: General Discussion
Forum Description: general topics not related to other forums
URL: https://www.PCBLibraries.com/forum/forum_posts.asp?TID=2459
Printed Date: 22 Nov 2024 at 5:05am
Topic: Are librarians adding a pin one dot to tiny comps?
Posted By: lsday
Subject: Are librarians adding a pin one dot to tiny comps?
Date Posted: 29 Mar 2019 at 8:30am
| I am getting quite a few die size components. I am wondering about the pin one marking. Should I mark it? Should the dot size be less than 20 mils? |
Replies:
Posted By: Tom H
Date Posted: 29 Mar 2019 at 8:37am
|
A 15 Mil dot is about the smallest for both the fabrication shop and the human eye. Why not box Pin 1 in a square? Or are the pins too close? These are the Polarity Marking in Library Expert.  ------------- Stay connected - follow us! https://twitter.com/PCBLibraries" rel="nofollow - X - http://www.linkedin.com/company/pcb-libraries-inc-/" rel="nofollow - LinkedIn |
Posted By: lsday
Date Posted: 29 Mar 2019 at 8:56am
| I will try the box method. Thank you Tom. |
Posted By: Tom H
Date Posted: 29 Mar 2019 at 9:05am
|
If you're in FP Designer, temporarily move the origin to Pin 1 and then place the box a 0,0 and make the line width minimum 0.10 and make the box 0.15 larger than the pad. Box size = 0.10 line with 0.10 space + pad size. If you use a 0.12 line / 0.12 space then make the box 0.18 larger than the pad. ------------- Stay connected - follow us! https://twitter.com/PCBLibraries" rel="nofollow - X - http://www.linkedin.com/company/pcb-libraries-inc-/" rel="nofollow - LinkedIn |