Electronics Forum | Thu Feb 19 12:45:05 EST 1998 | Earl Moon
| I have an Electrovert Ultrapak 445 Wavesolder machine with 3 IR preheat zones and a single wave with omega wave. | I want to run a DOE (Taguchi) to determine the optimum settings for soldering both single-sided and | double-sided boards. Can any
Electronics Forum | Tue Jan 20 13:33:14 EST 1998 | Justin Medernach
| This is a re-post of my previous message. I typed my Email address wrong in the other message. I am sorry for any inconvenience caused. | Is there anyone who can tell me what is the maximum allowable soldering temperature when soldering a TQFP (Thi
Electronics Forum | Mon Jan 26 11:46:16 EST 1998 | Rin Or
| I have a problem! The solder on my pc boards look great comeing out | of my reflow oven. They go thrue the rest of the prossese | and at the end at the qc station it's cold or whitish or gray not shiny. | does any one have a idea on how to correct
Electronics Forum | Mon Dec 22 16:02:22 EST 1997 | Justin Medernach
| what is your experience about the presence of the voids in the joints ? | Are they dangerous and when ? Vincenzo, Voids in solder joints can be caused by a number of factors. Let's begin with the flux vehicle in your soldering media. If the prope
Electronics Forum | Mon Dec 22 18:20:33 EST 1997 | Graham Naisbitt
Brett and Chis, The method I understand to be the most popular is the use of micro-blasting or abrasion. In other words mechanical rather than chemical removal. However, that is only part of the problem - how do you repair the coating? The technique
Electronics Forum | Thu Dec 11 09:57:38 EST 1997 | Alan Brewin
Thanks to Scott for your reply, much appreciated. Are you aware of any new developments in this area? Particularly in respect to the solvents? We are aware that fluorine chemistry is now in-use with amazingly high boiling points. We understand that
Electronics Forum | Mon Dec 08 07:44:03 EST 1997 | Mika Johnsson
| I would like to hear from anyone producing high mix (~200 modules) with low volumes (5-2000 per year) using an automatic line running lot sizes in the 5-50 range. We are engaged in an investigation to invest in this capability. A view into the or
Electronics Forum | Wed Aug 08 15:31:30 EDT 2001 | johnw
Hi folk's, I'm looking for some hint's here. Got a board from the customner that is ceramic, and it's 2.2mm thick. I've got a couple of RF connectors that I need to solder, problem is I can't get any flow up the PTH's. The pin's are gold on the conn
Electronics Forum | Thu Aug 09 16:41:12 EDT 2001 | johnw
Dave , you know it's your cheery disposoition I love.... Ok so the process: Process is Double sided reflow for SMT & PTH via the wave. Like I said or did I, I forget and can't check back...it's a spray fluxer with noclean mutlicore NR3s-06 water b
Electronics Forum | Mon Aug 13 17:38:05 EDT 2001 | fmonette
Praveen, Once you find out the MS level of your components, you will need to track the exposure time from when the parts are initially removed from their dry bags, through test, programming, taping, and during subsequent dry storage and use of thes
