Electronics Forum | Mon Jun 04 22:09:38 EDT 2018 | kdx
We have 2 Samsung SM482 P&P machines. One we have had for almost 3yrs and the other going on 2yrs. Echoing Spoiltforchoice comments it's critical to use the proper lubricants and cleaners and cleaning/replacing filters when needed. A dusty environmen
Electronics Forum | Tue Jan 28 07:10:30 EST 2020 | spoiltforchoice
Looking at buying a new stencil frame. We are a small low volume, high mix place & can changeover stencils several times a day. There are several framing systems out there but most of them are Pneumatic.(VectorGuard,Zelflex,LTC Quattro) I've seen/h
Electronics Forum | Tue Feb 29 21:18:00 EST 2000 | Gwen Z
When an assemblied board was on active service, what's the main reason for its failure:the package broken; the mechanics fatigue failure under thermal cycle; the corrosion caused by salt and vapor; the broken chip inside the package etc. I think all
Electronics Forum | Fri Feb 25 16:04:18 EST 2000 | Dave F
Sze-Pei: Are talking BGAs here? Flux type? Profile? Pad material? Aperture size? We won�t want to give people too many hints on what the problem is would we? BGA voiding is a function of materials, methods, environment, and human factors. Con
Electronics Forum | Thu Feb 24 14:42:56 EST 2000 | Ashok Dhawan
We are looking for a source which can accept our packing material ( PVC tubings, Chip Trays, reels and spools , PCB waste rails from depanalization). Anybody, who is currently using a recycling manufacturer for these packing wastes. Our intent is:
Electronics Forum | Wed Feb 09 07:04:08 EST 2000 | Jacqueline Coia
Could anyone please tell me the recommended guidelines regarding the max. time and the storage environment for complete (plastic blister tape) SMD reeled components before being used. This is before any associated quality problems occur during assemb
Electronics Forum | Sat Oct 28 08:41:37 EDT 2000 | Aaron
1. Check printing accuracy. 2. Check placement accuracy. 3. Your components should be kept in a good environment to prevent oxidation of terminations. 4. Pads pattern should be designed according to standards. If 1.2. are okay, you should suspect 3
Electronics Forum | Thu Jun 01 10:48:21 EDT 2000 | Jeremy
I am having a problem with the green solder mask flaking off exposing bare copper. The mask was defective from the board manufacturer. My problem is the boards are already assembled and we are just finding the problem. Is there a standard that cover
Electronics Forum | Thu Apr 27 11:36:53 EDT 2000 | PeterB
Russ, We also use 'immersion silver' and have not had any impact on our processes. In fact there are a number of benefits i.e very flat pads (as good as electroless nickel/immersion gold but much cheaper and less unfriendly to the environment), good
Electronics Forum | Tue Mar 21 17:32:48 EST 2000 | Charles Barker
Greetings all you knowledgable SMT persons! 1. Typically, for multi-layer (6-8 layers), FR4, SMT boards stored in an air conditioned environment at about 50+/- 10% RH, how many months (or years) would you allow to pass before you would recommend bak
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