Butter Coat, as in plastering or laying brick Randy Bock Sr. Quality Manager Pitney Bowes AddressRight Printers (email) [log in to unmask] Newtown Building 2 203 270-4931 Ext 8-426-4931 In 203 270-4982 Fax Ryan Grant <[log in to unmask]> Sent by: TechNet <[log in to unmask]> 01/13/2005 11:52 AM Please respond to TechNet E-Mail Forum <[log in to unmask]>; Please respond to [log in to unmask] To [log in to unmask] cc Subject [TN] Butter coat Hi Technetters, I just learned a new PCB fabrication term today..."butter coat". It's supposed to be thin layer of resin between glass cloth bundles and conductors to assure reliability. In the few shop audits I've been through, I've never seen or heard of a "butter coat". What would the process look like? Is the resin pressed and frozen into a sheet that can be handled or would it be squeegy'd on? If it is squeegy'd, can that be performed by hand or must a machine do it? If a machine must do it, how do you lay up the brick for the press? Finally, is this a standard process that I've just been unaware of? Thanks, Ryan --------------------------------------------------- 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 ----------------------------------------------------- --------------------------------------------------- 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 -----------------------------------------------------