Dry film is capable of providing greater thickness than LPI. It keeps solder paste from shorting across to other pads. One of probably few advantages. Ramon -----Original Message----- From: TechNet [mailto:[log in to unmask]]On Behalf Of John Parsons Sent: Thursday, June 02, 2005 7:01 PM To: [log in to unmask] Subject: Re: [TN] Dry Film "Soda Strawing"...an update. Not to hijack Steve's thread but what would be the reasoning for applying the dryfilm mask over LPI? What would be the benefits here? Within our customer base we never get calls for dryfilm mask so I am not clear on it's preferred application. Steve's customers sure seem to like it! It does seem somewhat problematic for him though :o) . John Parsons -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Bob Metcalf Sent: Thursday, June 02, 2005 3:49 PM To: [log in to unmask] Subject: Re: [TN] Dry Film "Soda Strawing"...an update. Steve, While it is not an "easy" process, I know a number of companies that have done the dry over liquid process for several years. Your fab shop needs to verify the LPI is compatible with the dry film and there are a few tricks to make it easier. If you contact one of the solder mask services (Solder Mask Inc, Mask Tek etc) they can do the job for your vendor or perhaps give them some tips to help them do it themselves. Regards, Bob --------------------------------------------------- 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 -----------------------------------------------------