Electronics Forum: 2002 (Page 366 of 423)

stencil ordering

Electronics Forum | Fri Oct 25 11:21:05 EDT 2002 | soupatech

This may sound like a stupid question but keep in mind I am very new at this and most of the training I have recieved has been from operation manuals and this forum (thanks to all). Our purchasing agent (new hire) is ordering a stencil for the first

stencil ordering

Electronics Forum | Sat Oct 26 08:01:17 EDT 2002 | davef

IIT is a reputable supplier. They will be more than happy, happy to help a newbie get a good product. Continuing, at one level of product design sophistication ordering by remote will provide you with a perfectly acceptable stencil. But on the o

BGA Short

Electronics Forum | Wed Oct 30 09:16:51 EST 2002 | russ

Low air flow huh. This is interesting, I have a low end machine that has adjustable air flow and I was having some shorting problems awhile back (corners mostly) and my first attempt was to preheat the board up to 170C and then use lower temp to put

pcb board deflection when mounting component

Electronics Forum | Mon Oct 28 07:07:39 EST 2002 | cyber_wolf

It has been my experience that when all conditions are as they are supposed to be there should be zero or very little deflection. When you start placing components with pick and place equipment that does not have a Z pressure sense, you run the possi

pcb board deflection when mounting component

Electronics Forum | Mon Oct 28 18:59:25 EST 2002 | tkenny007

Specs for Bow and Twist for PCBs (IPC-A-610C, 10.6. There may be an update by now). I also have a note in our quality guide referencing (IPC-TM-650, 2.4.22) and (MIL-STD-105D). In summary, a PCB should not bow more than 0.040" with all four corner

SMT package types

Electronics Forum | Tue Oct 29 15:07:38 EST 2002 | gregp

SOP small outline package, SOIC small outline integrated circuit, VSOP very small outline package, TSOP thin small outline package,TSSOP thin shrink small outline package, QSOP ???, LQFP low profile quad flat pack, VQFP ??? The packages come and go

Fine Pitch QFP100 Solder Joint - Need Help!

Electronics Forum | Wed Oct 30 10:26:42 EST 2002 | Randy V.

I would perform a simple solderability test per ANSI/J-STD-002. You can do this using a compatable no-clean flux like Indium NC771 and a solder pot. If the leads wet well you do not have a solderability problem. I did not notice what plating was on t

Used Equipment Support (Registration?)

Electronics Forum | Thu Oct 31 02:10:44 EST 2002 | fastek

One other thing. Contrary to what Cal suggests, don't buy a warranty from the manufacturer. Unlike the registration, this is a waste of money and is loaded with pitfalls. The best thing you can do is be an informed buyer. Remember, this is not a ca

Used Equipment Support (Registration?)

Electronics Forum | Thu Oct 31 08:39:35 EST 2002 | Jim M.

There is an old saying that i try to follow called "Your Price is too high" "It's unwise to pay too much, but it's unwise to pay to little.When you pay to much, you lose a little money, that is all. when you pay too little , you sometimes lose every

Used Equipment Support (Registration?)

Electronics Forum | Tue Nov 12 09:05:33 EST 2002 | Nick

Gentlemen... I hear lots of whining about registration and service fees for third party owners and lots of comparisons of "cars" Well Automations machines are not cars.. Machines differ like apples to grapes. As it was said earlier Business is Busin


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