Electronics Forum | Tue Apr 20 03:24:44 EDT 2004 | michael
I'm looking for a system that will manage all the un-formal "know-how" of the differant processes (smt, prep., insertion, wave, mec.assy., etc., etc.) alog production/assembly line. Can some one direct me to such a system? Send some references? Any
Electronics Forum | Wed Apr 21 19:59:43 EDT 2004 | Ken
It makes no difference if the solder is in balls, ingots, bars, paste etc. The thermal profile satisfies key areas of the reflow process as a function of your flux and alloy type. Peak and duration above liquiduous are a function of the alloy. pr
Electronics Forum | Fri Apr 23 13:56:57 EDT 2004 | Robert
Hi all Does any one know problem with solder joint call crystallised joints. I have noticed that sometimes on our PCB when i look at the joints for example chips, LCCC, there are areas not smooth solder (very often in the center of the solder joint)
Electronics Forum | Mon Apr 26 14:42:47 EDT 2004 | Kirk
so the first PCB if i want to aligned with stencil is manual the same for screen printer without vision and vision starts work for next boards? or i am wrong? but if i make mistake during aligment process for the first PCB i will repeat it for next P
Electronics Forum | Tue Apr 27 14:54:26 EDT 2004 | Kirk
reduction apertures in stencil and question how find center?. I thought that vision start playing important role at the beginning for the first PCB, help set precisely printing process. You gave tip to work without Mylar. Ok but again how you set ste
Electronics Forum | Tue Apr 27 08:14:59 EDT 2004 | iqbal
Is anybody doing BGA soldering water clean solder. If yes how you are ensure cleaness. We have boards with Four BGA and 2000 chip and ICs.We are processing with no clean solder but we are getting bad wetting so now we are planning to switch to water
Electronics Forum | Mon May 03 16:36:08 EDT 2004 | Kris
Try getting a small contract manufacturer who will build the boards for you initialy that way you can learn untill you establish the process once you do that you can have a fair idea of what machines to buy ? where to buy ? or maybe if the volumes
Electronics Forum | Tue May 04 14:15:46 EDT 2004 | michasm2
I'm looking for some input on a pay scale for experienced SRT/DRS operators. They do not do any profiling or process work - only remove/site prep/replace type work, along with any 'special' jobs like trace repair, masking repair, etc. They're current
Electronics Forum | Thu May 06 10:52:08 EDT 2004 | John S
Many component manufacturers are moving to Pb free terminations. I've been doing a literature study of Pb free processing and have found several articles that indicate Pb-free paste with Sn/Pb terminations leads to early fatigue failures. Does anyo
Electronics Forum | Thu May 06 15:46:08 EDT 2004 | Automation Engineer
I am looking at putting in a 100,000+ cph assembly line capable of processing 8" X 8" boards. Mix is passsives down to 0402, 15 mil pitch flip chips. I would like to hear what comments you have on the new Assebleon AX, Fuji NXT, Siemens HS-60, Univ
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