Electronics Forum | Sun Jul 31 10:06:51 EDT 2011 | davef
Try the NASA Workmanship Standards Inspectors Pictorial Reference document: http://workmanship.nasa.gov/lib/insp/2%20books/frameset.html Look at Section 7.08 SURFACE MOUNT TECHNOLOGY (SMT) BUTT "I" LEADED PACKAGES
Electronics Forum | Tue Nov 22 19:32:27 EST 2011 | kenkay
We are looking for a new machine to replace our Asymtek C-708 that we use for wave masking. Asymtek offers a D-585 but we were looking for something better then a table top unit. Any recommendations on a company or machine? Thanks
Electronics Forum | Tue Jun 20 20:43:00 EDT 2000 | Dave F
Gary: Your flux supplier is the person for you to ask this question. For instance, the Lonco Superflo 26F that Jason was talking about last week has a preheat of 85�C to 110�C. * Thickness and number of layers of your board will affect you choice o
Electronics Forum | Tue Jun 20 23:04:16 EDT 2000 | Dave F
Hi Gary: I'm sorry for not being clear. You should be concerned about the change in temperature between the end of preheating (actually just before the wave) and the wave. So, it is the difference between those two temperatures you should try to k
Electronics Forum | Fri Jun 23 09:22:58 EDT 2000 | Wolfgang Busko
Hi Boca, that sounds reasonable, but if we talk about dT that the SMD component on the solderside sees that�s a lot smaller than dT on the topside. So the only guess I can make is that the dT Dave mentioned has to be seen for the component on the so
Electronics Forum | Fri Feb 16 11:54:20 EST 2001 | davef
Try ... Aries 908.996.6841 Antona 310.473.8995 Oztech 510.782.2654fax2656 Emulation Technologies 408.982.0660 fax 0664 Interconnect Systems (BGA/BGA, BGA/QFP, BGA/PGA) 708 Via Alondra camarillo CA 93012 805.482.2870 fax 8470 isipkg.com
Electronics Forum | Mon Dec 06 12:00:39 EST 1999 | Dave F
Peter: try: Aries 908.996.6841 Antona 310.473.8995 Oztech 510.782.2654fax2656 Emulation Technologies 408.982.0660 fax 0664 Interconnect Systems (BGA/BGA, BGA/QFP, BGA/PGA) 708 Via Alondra Camarillo CA 93012 805.482.2870 fax 8470 isipkg.com Good lu
Electronics Forum | Fri Nov 28 04:46:45 EST 2003 | gregoryyork
Best to establish what type of residue is causing this problem and then stamp it out.Speak with SCOPE Labs who offer PCB extraction followed by IR and IC work. So many problems with porous resist at present and NON ionic materials that you really nee
Electronics Forum | Mon Apr 17 22:56:10 EDT 2006 | davef
Have you considered singulation? It uses a press and a peculiar die to seperate the useful cicuit from the panel. Suppliers include: * Wand 847-459-2400 F2421 * Circuit Technology 708-705-2140 f2141 John Bambule * Pioneer - Dietecs 781-682-7900 F03
Electronics Forum | Fri Jun 23 09:01:01 EDT 2000 | Dave F
Gary: According to what I was try to say, you have read me correctly. NOW ... I would not pay much attention to my 100�C delta T babbling. It is in our work instruction for setting-up the wave, but no one pays attention to it. And I, nor anyone e
