Electronics Forum | Mon Jun 28 17:03:59 EDT 1999 | M Cox
| Hey there gang, how's it going ? | | Anyway's here's my probelm, got a new product to build double sided reflow, lot's of so20's and PLcc's 1206's, 0805's the usual stuff. Probelm is all the pad spacing of the 1206's are too big, my component's ar
Electronics Forum | Thu Jun 24 10:48:02 EDT 1999 | Earl Moon
| Recently, there has been an upsurge in the Pin Hole/Blow Hole problem in our wave soldering process. We are baking the PCBs for 2 Hrs. at 125 degree C. The Wave Soldering profile seems to be O.K. Still the problem is persistent. Can somebody hel
Electronics Forum | Tue Jun 22 13:56:55 EDT 1999 | Deon Nungaray
| I was wondering if anybody could give an estimated cost of equipment maintenance per year for a complete SMT line for | a medium volume facility? | Deon Rresponse: Hi John, Your question is very generalized. I think that in order to make a good
Electronics Forum | Fri Jun 18 12:11:20 EDT 1999 | John Thorup
| A user of one of our components exceeded the floor life of some plastic BGA components. They did do a pre-bake prior to SMT reflow but only 72 hrs at 40C and not the recommended 12 hours at 125C. I've recommended accoustic microscopy to look for po
Electronics Forum | Sun Jun 06 08:00:06 EDT 1999 | Dave F
snip | Ryan, | | The only advive I got is just don't do it!. Dave's right the grain growth in it is pretty bad. the other thing you got to look at is how much heat is the board gonna produce in it's working life..??? and where is it gonna be used,
Electronics Forum | Tue Jun 01 11:43:25 EDT 1999 | Dave F
| Hi, | | To improve the Design For Manufacturing I am currently looking to write down some design rules that can (and should be) used by our engineering department. | | Can somebody help me get started or give some usefull tips on where to find a
Electronics Forum | Thu May 06 01:37:56 EDT 1999 | Kallol Chakraborty
| I would like to know if someone aleady have problems with Ceramic Capacitors SMD in In-Circuit Test (see below)and how did you solve this problems ? | | PROBLEMS | 1 - Only one kind of capacitor (2n2F), of all capacitors on board, sometimes are o
Electronics Forum | Tue May 04 10:30:35 EDT 1999 | Dave F
| I am about to embark on an effort to evaluate 3 different solder material suppliers and their recommended materials for our assembly process, in an effort to find the best supplier/material. We do mixed technology, with NOCLEAN chemistry so I will
Electronics Forum | Fri Apr 23 14:59:14 EDT 1999 | Chrys Shea
| Has anyone had trouble waving and gluing 0603 R's and C's? At my company, our designers have "opened the floodgates" on bottom-side 0603's. | | We've got an EPK+ with rotary chip and omega wave but can't seem to get skip-free soldering on these g
Electronics Forum | Fri Apr 23 15:04:44 EDT 1999 | M.T.
| | Has anyone had trouble waving and gluing 0603 R's and C's? At my company, our designers have "opened the floodgates" on bottom-side 0603's. | | | | We've got an EPK+ with rotary chip and omega wave but can't seem to get skip-free soldering on t
