Electronics Forum | Thu Jun 12 00:32:23 EDT 2003 | Henry
I would like to ask a question about SMT reflow process. I did 10 pcs samples but all is fail. The sample is double faces to have components (up-side has 4 pcs of BGA and down-side has 3 BGA and 2 QFP). And I saw some of BGA which is tilting in the P
Electronics Forum | Thu Jun 12 03:34:23 EDT 2003 | sanjeevc
I would like to ask a question about SMT reflow > process. I did 10 pcs samples but all is fail. > The sample is double faces to have components > (up-side has 4 pcs of BGA and down-side has 3 BGA > and 2 QFP). And I saw some of BGA which is > t
Electronics Forum | Mon Jun 06 00:42:52 EDT 2005 | Dr. K
Hello all. I would like to implement a process in our SMT site. The process purpose is to reduce the scrap level from our SMT line machine (siemens). I would like to hear some advices for that kind of process. -preventive actions I should implement
Electronics Forum | Mon Nov 01 22:16:04 EST 1999 | Dean
Without a detailed description of the suspect parts It is difficult to pin-point the exact solution to your process problem. However, whenever possible avoid non-value added additions to your current process. Here is the reality of the situation:
Electronics Forum | Sat Mar 31 14:38:24 EST 2001 | scott
JAX Is right. ROI. How much will it cost to subcontract your assembly for the next 3 years vs. buying your own equipment AND staffing (ie: Process Eng, Maintenance, Skilled operators, etc.). Then, ask how much will it cost you to buy new equipment
Electronics Forum | Fri Mar 16 11:52:31 EST 2001 | J.D. of Panasonic
Ed, You certainly are ready for some equipment. I noticed in your message that you mentioned cost three times. So it is a very big issue to you. What everything depends on is where you see your company going in the next few years. Do you want
Electronics Forum | Thu Mar 15 17:33:20 EDT 2007 | Darby
As you are new to this - start with lots of hair and slowly reduce. Start with one good person. Spend the money on someone who knows the process, can set it all up, (including air, power, alignment, calibration, programming, troubleshooting, stenc
Electronics Forum | Mon Jul 26 14:14:51 EDT 1999 | Steve Gregory
| | | We are having a process related problem with pullup resistors on a controller card which has a I960 micro-processor. | | | The controller monitors signal inputs and it's own resources then blinks a LED to indicate its working. The problem is th
Electronics Forum | Tue Aug 21 21:39:19 EDT 2001 | davef
1) why is No-clean (NC) the preferred process, for BGA mounting by SMT? Probably the same reason NC is the preferred process for mounting non-area array SMT components. 2) why is water-soluble (WS) not a hot choice? There�s not reason not to use
Electronics Forum | Wed Jul 15 06:46:12 EDT 1998 | Jim Smith
To process eng. , It's the Fuji FQP132E.... | | | | Hi, | | I'm an SMT tech in a major OEM in Scotland and we have just purchased two Fuji QP's. Does anybody out there have a list of do's and don'ts especialy regarding preventative maintenanc
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