Electronics Forum | Fri Jun 25 11:29:43 EDT 2004 | tcp
We have had some field returns of a double sided SMT board manufactured in the February timeframe. The boards are encapsulated in an epoxy potting. When removing the potting some SSOP devices came off in the potting. The leads had pulled out of th
Electronics Forum | Sat Jul 03 11:20:08 EDT 2004 | KEN
....not unique. But tough as hell! I build flex assemblies for a major P&P equipment manufacturer. Some are pure flex, most are ridgid flex. And of course, why put fiducials on the boards to help the process (why God, why me?) We use pallets and
Electronics Forum | Mon Jul 19 09:05:56 EDT 2004 | Stockley
Chris, it was cunning of you to think of this sequencing solution, but speaking from my lofty position of King of the Workaround, I can only suggest this - forget it. Sorry to be blunt about it but you've said that your operators aren't motivated, al
Electronics Forum | Fri Jul 16 15:07:11 EDT 2004 | waveroom
Good question, we are a distributor and have offered lots of different magnifiers. We finally decided to stick with only one brand. It's not the least expensive but the quality and warranty are superior to any other. That would be OC White. I replac
Electronics Forum | Thu Jul 22 12:02:52 EDT 2004 | lloyd
I'm currently having issues with a 28 terminal MLP package. I have only recently started in a new company and it seems as though the manufacturers guide lines as to pad geometry do not work (at least for us). So I now have a situation where I have 4
Electronics Forum | Sat Jul 24 09:06:40 EDT 2004 | davef
We believe that many manufacturers' recommended pads should be close to the last resort. Recommendations are: * Standardize with the IPC guidelines or those by Jim Blankenhorn [ smtplus.com ]. Anyone that wants to change from that standard needs to
Electronics Forum | Wed Aug 04 15:27:03 EDT 2004 | Rush Fan
I might suggest that you check with your solder paste manufacturer to see what is recommended for time over reflow. Typically, I think most are between 60 and 90 seconds over 183. Also, consider the rate of cooling. The faster you cool the solder, th
Electronics Forum | Tue Aug 03 09:38:39 EDT 2004 | Danny
We are a small PCBA contract manufacturer based in Malaysia. Sometimes, our customers request us to provide X-ray inspection on BGAs. Due to our production mode is towards high-mix low-volume, it is a bit difficult justifying purchase of X-ray inspec
Electronics Forum | Fri Aug 06 17:28:06 EDT 2004 | Steve
My suggestion is that there are alot of suppliers for this type product. Call a couple of distributors and have them send you samples. Make sure you know each manufacturer so that they don't duplicate. Review the performance and price of each one and
Electronics Forum | Fri Aug 06 21:43:40 EDT 2004 | KEN
In my wiper paper travels I discovered that many different brands are simply "repackaged" from a single manufacturer. Look at fiber size, weave and porosity. In one case two paper were identical, just dyed green. The prices ranged from 26 dollars
.png)
winsouce.jpg)
