Electronics Forum | Tue Dec 13 17:41:04 EST 2011 | davef
A Study Of 0201’s And Tombstoning In Lead-Free Systems, Phase II Comparison Of Final Finishes And Solder Paste Formulations http://sheaengineering.com/Documents/APEX%2008%200201s%20and%20Tombstoning%20phase%202%20paper.pdf CONCLUSION The condition
Electronics Forum | Thu Nov 04 19:51:28 EST 1999 | John
Thanks folks. The current vendor is doing an alcohol wash, top and bottom, then performing an ionic test on 100 boards. I'm not to confident in the testing because the readings for a "clean" board are 25 ugm/sq in and a "dirty" board are 40 ugm/sq in
Electronics Forum | Mon Jun 03 12:51:17 EDT 2002 | V.RAMANAND KINI
We are doing COB operations for nearly ten years. Pls. write to me if you need info on m/c selection, type of PCB, plating etc., Thanks V.RAMANAND KINI...03.06.02
Electronics Forum | Thu Oct 14 12:02:44 EDT 1999 | Larry Johnson
I was wanting to know if there was any type of formula that I could use to determine the correct packaging for a SMD For example, if I have the component measurements, can I find out what the correct width and pitch of the tape it comes in should be
Electronics Forum | Fri Jan 25 05:22:47 EST 2008 | dekiper
Hi, You could try other types without brass shim. It's also important to use a good tool that is adjusted properly. Contact me and I will help you with quality samples and instructions. http://www.dekitools.com // Per Gester
Electronics Forum | Fri Aug 24 09:29:08 EDT 2007 | jgrootkoerkamp
Solder balls with wave soldering can have different causes. The two most important are the solderresist and the flux. I have similar problems, after changes the flux type 90% off all solderballs are gone. KR, Joris Groot koerkamp
Electronics Forum | Tue Feb 24 16:05:58 EST 2015 | alexeis
Hi, The best way is to sort your components for each shape type by expiration date and than by delivery date. This will give exactly what you need to reorganize from lifo to fifo. Best Regards, Alexei
Electronics Forum | Fri Oct 12 09:17:12 EDT 2001 | mikecampbell
Hello, I need some advice. I want to create apertures in my stencil for a IBM CCGA. I've heard the standard is 4800 cubic mils of paste per aperture. I usually use a 5mil stencil for this type of product. There is no way I'll get enough paste wit
Electronics Forum | Tue Mar 16 06:13:58 EDT 2010 | dilogic
Can you tell me how to distinguish between them? I recently bought a second GSM2. With it I've got two FlexJet heads (dismounted). The serial number of both heads starts with FJ7P, so I assume they are of FJ7 type? The issue is - it seems that the he
Electronics Forum | Tue Oct 09 14:10:24 EDT 2001 | cal
I am confused. You are using pressure sensitive tape. the pessure sensitive tape i have seen does not use cover tape.The pressure sensitive tape I am familiar with is called "Surftape" could you provide some more clarification?? Surftape is more co
.gif)
