Electronics Forum | Fri Aug 13 19:59:48 EDT 2004 | Hi CJ.
Don't be discouraged about the Zephyrtronics Air Baths from Chris' comments. I'm sure he means well, but I've seen these units being used by people who swear by them. You might also look at the APE preheating units and the Zephyrtronics...but you sh
Electronics Forum | Thu Jul 22 06:33:28 EDT 2004 | Grant
Hi, I wondered how people warmed up solder paste at the start of the days production. I saw some paste mixers at a show, but only saw ones that mixed small solder paste tubs, not tubes. Can you get mixers that handle tubes. They said these mixers a
Electronics Forum | Mon Jul 26 19:40:17 EDT 2004 | Grant
Hi, That's a good idea. I might head down the the 7-Eleven, and try it! I did not realize there is not too much to be gained by using refrigeration. We don't keep much paste in stock and buy it as we need it, so perhaps we should just keep it out r
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 | Mon Jul 26 09:19:57 EDT 2004 | davef
Both imm silver and ENIG provide flat surfaces that are better for fine pitch placement and reflow than HASL. We know of nothing that makes BGA locations different than other locations when using ENIG solderability protection. More broadly, the pri
Electronics Forum | Wed Jul 28 10:29:20 EDT 2004 | johnthor
They are 6 volt, 10 watt bipin halogen and not hard to get. You do need to retain the metal housing. Take the screw out of the small pc board where the pins of the bulb project and pry it off. Scrape or grind out the hard material that holds the b
Electronics Forum | Wed Jul 28 00:13:03 EDT 2004 | NTV
We are seeing un-Reflowed paste along the IC > leads. There is only a very small amount imbedded > in the flux, typically there is about 10 beads > per lead. But on most leads. We are using > no-clean Kester 256 paste (Easy Profile)We have > not
Electronics Forum | Thu Jul 29 00:50:37 EDT 2004 | C.W
Anyone has experience with Humiseal 1B31LOC and 1B31? Their material properties(physical, chemical, temp. etc) are fairly much the same after cure but there are some differences when they are at liquid stage. We are currently using 1B31 but is planni
Electronics Forum | Thu Jul 29 15:00:22 EDT 2004 | Sam Haq
Hi, I am trying to locate a vendor for very low alpha count solder balls. Solder is 63Sn/37Pb or 62Sn/36Pb/2Ag. Ball Specifications 63% tin / 37% lead solder (optional 2% silver in the form of 62/36/2 would be acceptable) 300 micron diameter
