TECHNET Archives

May 2005

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:
"Alcorn, Brent" <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Alcorn, Brent
Date:
Tue, 10 May 2005 13:08:31 -0400
Content-Type:
text/plain
Parts/Attachments:
text/plain (60 lines)
Hi John,

That is correct, see IPC SM-782 rev A amendment 2, section 14.

Brent



-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of John Guy
Sent: Tuesday, May 10, 2005 12:59 PM
To: [log in to unmask]
Subject: [TN] BGA Ball/Pad Size Ratio

Hello All,
        I was wondering if there is some guideline for the recommended
pad size for a BGA based on the component's ball size?  I have been told
that it is recommended that the pad diameter be about 80% of the ball
diameter, but I would like some confirmation.

Thanks in advance,
John Guy
Surface Mount Process Engineer
diversifiedsystems, inc.

Custom Products Division
3939 W. 56th Street
Indianapolis, IN 46254-4961

Telephone: 317-299-9547, x336
Fax: 317-298-2055
E-mail: [log in to unmask]
Web: www.divsys.com

---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 1.8e 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 or
(re-start) delivery of Technet send e-mail to [log in to unmask]: SET
Technet NOMAIL or (MAIL) 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/contentpage.asp?Pageid=4.3.16 for
additional information, or contact Keach Sasamori at [log in to unmask] or
847-615-7100 ext.2815
-----------------------------------------------------

****************************************************************
The information transmitted in this message is confidential and may be privileged.  Any review, retransmission, dissemination, or other use of this information by persons or entities other than the intended recipient is prohibited.  If you are not the intended recipient, please notify Analogic Corporation immediately - by replying to this message or by sending an email to [log in to unmask] - and destroy all copies of this information, including any attachments, without reading or disclosing them.

Thank you.

---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 1.8e
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 or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL)
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/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815
-----------------------------------------------------

ATOM RSS1 RSS2