We evaluated several hot air levelling tapes and have found two tapes that have completely eliminated any quality issues associated with HAL tapes, i.e., residue, lifting , delamination etc.. If you would like more info on the tapes we identified please contact me directly via email. -----Original Message----- From: Bill Davis <[log in to unmask]> To: [log in to unmask] <[log in to unmask]> Date: Monday, June 15, 1998 9:15 AM Subject: Re: [TN] Tape residue elimination >Have you tried polyimide tapes? > >> -----Original Message----- >> From: Paul Gould [SMTP:[log in to unmask]] >> Sent: Sunday, June 14, 1998 8:46 AM >> To: [log in to unmask] >> Subject: Re: [TN] Tape residue elimination >> >> Hello Duane, >> >> you could try a good quality paper masking tape. As long as it is peeled off >> while the panel is still warm after soldering, it should not leave a >> residue. >> >> Otherwise, there are some very good (and expensive) masking tapes used in >> hot air solder levelling, and believe me that needs a good tape. We use one >> which leaves no residue and withstands the extremes of hot air levelling >> without lifting. Expensive though the tape is, it is cheaper than peelable >> mask although that product also works well. Your pcb supplier should be able >> to supply your pcb's with peelable mask. >> >> I can't remember the details of the tape but if you email me at my office, >> [log in to unmask], I will get the details for you. You can also get tape >> dispensers which deliver a measured length of tape pre-cut which speeds up >> the application. Manual machines are cheap but you can get motorised ones >> for volume use. >> >> Regards >> Paul Gould >> Teknacron Circuits Ltd >> Isle of Wight, UK >> >> >From: Duane Briggs >> >To: [log in to unmask] >> >Subject: [TN] Tape residue elimination >> >Date: Monday, June 01, 1998 8:29PM >> > >> >Gold fingers have to be covered during flow soldering. Is there any >> >tape >> >that does NOT leave ANY residue? If not, what is the best, cheapest way >> >of >> >removing the residue? Pallets are not an option for us unfortunately. >> > >> >Duane >> >> ################################################################ >> TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c >> ################################################################ >> To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: >> To subscribe: SUBSCRIBE TechNet <your full name> >> To unsubscribe: SIGNOFF TechNet >> ################################################################ >> Please visit IPC web site (http://jefry.ipc.org/forum.htm) for additional information. >> For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 >> ################################################################ >> > >################################################################ >TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c >################################################################ >To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: >To subscribe: SUBSCRIBE TechNet <your full name> >To unsubscribe: SIGNOFF TechNet >################################################################ >Please visit IPC web site (http://jefry.ipc.org/forum.htm) for additional information. >For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 >################################################################ > ################################################################ TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c ################################################################ To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TechNet <your full name> To unsubscribe: SIGNOFF TechNet ################################################################ Please visit IPC web site (http://jefry.ipc.org/forum.htm) for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################