Hi Carrie There is a stencil printing option available even if leaded components with stand-off's up to 30 mil are present on the PCB. This is Glue Reservoir printing. The stencil is thick 30 to 40 mil thick and has a glue aperture to control the height of the glue brick as well as a reservoir aperture above the glue aperture. This is described in APEX 2002 Proceedings S27-1 "Metal Stencils for Adhesive Printing" Regards, William E. Coleman Vice President - Technology Photo Stencil An ISO 9001 Registered Company 4725 Centennial Blvd. Colorado Springs, CO 80919 Phone # 719-535-8528 Fax # 719-599-4334 Cell # 719-331-2433 email: [log in to unmask] <mailto:[log in to unmask]> ---------- From: Morse, Carrie [SMTP:[log in to unmask]] Sent: Friday, October 03, 2003 8:09 AM To: [log in to unmask] Subject: Re: [TN] Adhesive printing Yannick, The specifics of the process will depend on the design of the board and the adhesive you use. We use a Loctite Printable adhesive 3612. Make sure to pick a printable adhesive. Loctite as well as other companies also offer adhesives that are printable AND dispensable. We use our "normal" printing process. For us, "normal" means either manual printing using a TA printer or automated printing with a DEK screen printer. In both cases we use .006" thick stencil and we use metal squeegees. If we are lucky, we only have chip components. If we are not lucky, we have to manually dispense dots for the larger components (which is why dispensing is sometimes better.) -Carrie -----Original Message----- From: Yannick Brisson [mailto:[log in to unmask]] Sent: Friday, October 03, 2003 9:41 AM To: [log in to unmask] Subject: [TN] Adhesive printing Hi, Does anybody ever try to print adhesive on a board, we have a double side board which need to go after SMT in the wave, we must put some glue on the board to keep the component on the board. And it's time consuming to get the glue off the board. Now we are thinking to print adhesive with a stencil. What do I need to do that? what type of stencil, squeegees, aperture for the component, how much adhesive must I have on the board, thickness of the stencil, in other wordswhat do I need to know to do this opertaion. Thanks you Yannick --------------------------------------------------- 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 ----------------------------------------------------- --------------------------------------------------- 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 ----------------------------------------------------- --------------------------------------------------- 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 -----------------------------------------------------