The larger ring might be a little stronger, but most of the strength of
the area of the connection would be in the PTH. The area increase on the
ring would be quite small. I don't think soldering technique has much
effect, assuming good process results.

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Steve Kelly
Sent: Thursday, October 23, 2003 5:57 PM
To: [log in to unmask]
Subject: [TN] Solder Joint Strength



I had a question from a customer today which I could not answer.
Question was " if a pin is soldered in a through hole with an annular
ring of .010 is this a stronger joint than if the annular ring was .005"
. Doesn't this depend more on the soldering technique that the size of
the ring? Thanks. Steve Kelly



PFC Flexible Circuits Limited

Ph: (416) 750-8433

Fax: (416) 750-0016

Cell: (416) 577-8433

E-Mail: [log in to unmask]




---------------------------------------------------
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 847-509-9700 ext.5315
-----------------------------------------------------