Electronics Forum | Wed Jan 13 21:46:03 EST 1999 | Dave F
| I am currently using Alpha WS629. I have a Malcom SPS-1 Solder paste mixer. I find that the mixer after running for the recommended mixing time | (10 to 18 Min) ball's the solder in the jar. | | 1) Is there any other Manufacture having the same
Electronics Forum | Mon Oct 26 20:18:23 EST 1998 | Dave f
| I need some info on how to stop the bridges I'm having on | radial and axial parts that are in the same place on every board. I'm also having problems with sot-25 bridging. I'm using a Electrovert E-pak. I tried leveling the machine,solder pot, an
Electronics Forum | Fri Sep 18 18:26:58 EDT 1998 | Dave F
Say, you company wants you to set-up a new assembly line. You get: 1 $2 million for any equipment that you want to purchase and no idiot bosses second guessing your choices 2 New building with good parking and enviromental and ESD controls 3 Crack(e
Electronics Forum | Wed Sep 09 13:12:34 EDT 1998 | Dave F
| Hi, | I work at a service department in Portugal and we are recently ISO9002 compliant. After our 2 billion audits, they asked us to improve our soldering documentation by joining information on soldering and desoldering regular and SMD IC's, like:
Electronics Forum | Tue Oct 16 18:42:32 EDT 2001 | mparker
I go with DaveF's advice. You are probably curing the glue too fast. Another phenomenon that I have experienced was during glue cure and solder paste reflow simultaeously. A good reason to run a glue cure profile seperately from solder paste reflow
Electronics Forum | Tue Aug 17 15:52:47 EDT 2004 | MikeF
Here's an old thread from the archives that has some info on fluxer stones: http://www.smtnet.com//forums/index.cfm?fuseaction=view_thread&CFApp=1&Thread_ID=5780&#Message22853 Also, DaveF recently posted this info: Tim: We haven't bought a stone i
Electronics Forum | Tue Jan 03 17:36:49 EST 2006 | MikeF
If you know you have cleaned any flux residues that were under there you could consider a bead of an electronic grade RTV, such as RTV3145. If you trap any uncleaned residues under there you could have long term reliability problems. But, like Dave
Electronics Forum | Tue Jul 18 18:53:23 EDT 2006 | Mike F
Is it showing up after wave or reflow soldering, or after hand soldering? If the delamination or blister bridges between traces you have the potential for a short circuit between those traces. A delamination might be repairable, but in most cases i
Electronics Forum | Wed Aug 04 14:23:06 EDT 1999 | Dave F
| Jim McCarten and Dave F, | | Jim - How about a little explanation on your PlacePro 7100 comments? I'd like to know what a "typical SMT board" is and how "thruput is cut in half" by assembling it. Is this typical SMT board something that most manuf
Electronics Forum | Wed Aug 04 12:35:15 EDT 1999 | Dave F
| | | | I have been asked to supply a maximum shelf life for our assemblied PCB's. I realise this is dependent on so many factors- temperature, humidity, no of layers etc. But does anyone have a formulae for calculating shelf life, or does anyone kno
