Electronics Forum | Thu Aug 19 16:03:04 EDT 2010 | kpm135
Are you reusing your paste or putting down new every time? I've seen solder balls before when operators try to use the paste past the recomended stencil life. I've also seen it happen with a bad batch of solder paste from a vendor.
Electronics Forum | Fri Aug 20 09:40:56 EDT 2010 | namruht
kpm, We were afraid of that, so we have tried several variations with paste usage. New paste, transfered paste from another line, and a new tube from another date code. I think the problem is profile, board design or humidity. I just have to starti
Electronics Forum | Sat Aug 21 02:08:00 EDT 2010 | isd_jwendell
I have noticed that the % metal content in the paste can also be directly correlated to solder balls (less metal, more balls). However, I also found differences between pastes from different manufacturers and the number of solder balls (identical boa
Electronics Forum | Tue Aug 17 11:51:52 EDT 2010 | arek
Hi, I bought Philips CSM machines (CSM66-III and CSM84V-III). I need flopy disc with some files (MCH, VIS, FDR). I created MCH file but the machine send me an error message: BAD FORMAT DATA. Could anyone help me and send me correct files. Thanks
Electronics Forum | Thu Aug 19 10:28:26 EDT 2010 | tpearson
We want to complete an end of life build on a leaded no-clean circuit board assembly. I was asked how long the assembly can be stored for future use. Assume it is in a temperature controlled warehouse. Boards will be placed into individual ESD bags f
Electronics Forum | Mon Jul 11 08:50:51 EDT 2011 | doremi
Hi, you can generate your prgm without any gerber date, you should save an image and after that just paste your components, you can also use Multiform software to convert CAD data into Omron data file, which can be used to generate the final prgm. Bu
Electronics Forum | Wed Sep 01 11:51:01 EDT 2010 | horvath83
It's a very small series. There's already a decision to redesign the board to get rid of QUAD BGA transformers. We'll replace them with 2x transformers in other packages. We'll also try to order lead-free smaller BGA's on the other side to unify th
Electronics Forum | Sat Aug 21 15:02:32 EDT 2010 | jry74
I have a pcb with 750 plated through holes that get Holtite sockets inserted into them. I have a method of pressing in 10 sockets at a time. However, when we are done, the board has bad warpage on the X and Y axis. Does anyone out there have any t
Electronics Forum | Sat Aug 21 15:07:34 EDT 2010 | jry74
I have a problem with solder bridging between IC leads, especially fine pitch leads. If we lessen the apature ratio and/or decrease stencil thickness, I have more of a chance for unsoldered or insufficent joints. I am looking for any information th
Electronics Forum | Sat Sep 18 03:45:08 EDT 2010 | vinitverma
Before reinstalling, just take a system data backup of the machine. It'll create one floppy which you will use in the form of "System Data Restore" once you have reinstalled the software. By the way, you should have 2 CDs, one titled Application Soft
