Electronics Forum | Fri May 16 10:06:44 EDT 2003 | pjc
Traceability of raw material, personnel and equipment performance during product manufacture: Tracing raw material is done by recording the material mfg.�s batch-code that they assign during the material�s manufacture. This is everything from the fl
Electronics Forum | Thu Jan 27 20:34:12 EST 2000 | Dave F
Ashok: The real concern about moisture sensitivity is in plastic packaged parts. The plastic packaging used to manufacture surface mount technology devices absorb moisture from the environment. The high temperatures involved in vapor phase/reflow
Electronics Forum | Mon Feb 01 09:17:45 EST 2016 | spoiltforchoice
You can buy an awful lot of stencils for $200K > but where/how are you going to store all of those > stencils? There is a certain $$$ value to all > the space it will take to store them. > > I have > been told by a Mycronic salesman that they a
Electronics Forum | Tue Nov 07 23:27:31 EST 2000 | gary
What�s the best storage method in controlling SMT parts ? Currently we get all the parts from our stores for certain jobs and stock them in our Reel Racks with their designated part numbers. When they�re in SMT area they all get mixed up with some of
Electronics Forum | Fri Oct 06 09:25:57 EDT 2000 | Kev Head
Most places I've seen don't do anything special. But then again most places only have chip components on the bottom of their boards along with some thru-hole. The best way to find out if you are going to delaminate is to talk to the board manufactu
Electronics Forum | Thu Apr 13 05:13:22 EDT 2000 | C.Long
Anyone have any ideas as how to track the amount of air exposure to SRAMS etc as thay move from stores onto the production floor. i am looking for ideas as how to track the exposure time from the time they are taken out of ther packaging to the time
Electronics Forum | Fri Jan 21 18:47:14 EST 2000 | Ashok Dhawan
This massage is for clarifications on storage and handling of Moisture sensitive parts: Does chip resistors,capacitors and inductors need vacuum packing during usage life? For repacking of FPDs to limit reuse, is it necessary to use vacuum seler or s
Electronics Forum | Fri Dec 31 20:04:10 EST 1999 | Stu Leech
At Altos Engineering we do a lot of process testing of our TVP drying systems for demoisturizing. We store test devices in metalized vapor-proof bags. Instead of heat sealing, we use Croc-Clamps to seal the bags. They have been tested for sealing eff
Electronics Forum | Fri Dec 03 18:01:39 EST 1999 | Dave F
Chris, Two points of perspective are: 1 Solderability: The shelf life of components has elapsed when they are no longer solderable. There's tons of variables that affect this, but keys are: * Intermetalics grow as a function of temperature. * Th
Electronics Forum | Tue Nov 02 11:44:54 EST 1999 | Wolfgang Busko
Hi Pat, is the soldering Ok when you solder them by hand ? We use some larger ferrite beads with no problems in reflow but I must say that we use a vapour phase and only max 5 parts/PCB. They do have a high thermal capacity and you use a lot of them,
