You can use an island stencil which can be used to isolate components that you specify.  These island stencils will add more volume of paste to the pre-defined area rather than to the whole board.  Who do you order your stencils from?



Ronald D. Peeler Jr., B.S. IE 

Process Engineer 

SWEMCO 

Moorestown, NJ 08057 

Tel: (856).222.9900 ext. 31 

Cel: (484).948.0779 

Fax: (856).222.0700 

[log in to unmask]







-----Original Message-----

From: TechNet [mailto:[log in to unmask]]On Behalf Of Gregg A. Owens

Sent: Friday, June 08, 2007 2:06 PM

To: [log in to unmask]

Subject: [TN] Solder Stencil - Insufficient Solder





Dear TechNetters:



Continuing with the theme of insufficient solder. Have a student with a similar problem. They have a few SMT components that are very large (in relation to the majority of others on the PCB). These larger components then have insufficient solder necessitating too much touchup/rework to be cost effective. Is there a way to increase the quantity of solder paste being applied to these specific components using a stencil other than increasing the aperture? Any other ideas?



Thanks, 



Gregg Owens, MIT

Manufacturing Technology Training Center, Inc.

Mira Loma, CA 91752



Gregg



---------------------------------------------------

Technet Mail List provided as a service by IPC using LISTSERV 15.0

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

-----------------------------------------------------