TECHNET Archives

June 2002

TechNet@IPC.ORG

Options: Use Monospaced Font
Show Text Part by Default
Show All Mail Headers

Message: [<< First] [< Prev] [Next >] [Last >>]
Topic: [<< First] [< Prev] [Next >] [Last >>]
Author: [<< First] [< Prev] [Next >] [Last >>]

Print Reply
Subject:
From:
Matthias Mansfeld <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Fri, 21 Jun 2002 23:40:45 +0200
Content-Type:
text/plain
Parts/Attachments:
text/plain (40 lines)
On 21 Jun 2002 at 14:53, Steve Gregory wrote:

[....much about IC footprints with 1 pad rectangular, 9 pads rounded
corners, 1 pad rectangular and so on....]

If the pad Sizes are the same (length and width - cannot see this
clearly in your screenshot) and preferrably according IPC-SM-782
specs (where is indeed written rounded or rectangular are both ok) I
would not see any problems not any need to "fix" this.

I would assume these rectangular pads are marks for the pins number
1, 10, 20 and so on... just for the case you have NO silkscreen at
all and need to find a specific pin. There was recently a discussion
about pin 1 marking on PCDmags mailing list and someone described
exatly what you see on your gerbers as their in-house standard.

Best Regards
Matthias Mansfeld



-----------------------------------------------
Matthias Mansfeld Elektronik
* Printed Circuit Board Design and Assembly
Am Langhoelzl 11, D-85540 Haar, GERMANY
Phone: +49-89-4620 0937, Fax: +49-89-4620 0938
E-Mail: [log in to unmask]
Internet: http://www.mansfeld-elektronik.de

---------------------------------------------------------------------------------
Technet Mail List provided as a free service by IPC using LISTSERV 1.8d
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL
To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest
Search the archives of previous posts at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/html/forum.htm for additional
information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315
---------------------------------------------------------------------------------

ATOM RSS1 RSS2