11226 parts results

Electronics Forum: parts (Page 631 of 1123)

HASL Pictures

Electronics Forum | Mon Jun 29 10:19:25 EDT 2009 | brandieatborisch

Are there any photos available of what good HASL finish looks like as opposed to not desired? I'm looking for something to use as an aide in inspection becasue sometimes boards at our facility are received with HASL where the solder is excessive cau

0402 PARTS

Electronics Forum | Thu Jul 02 10:52:45 EDT 2009 | dyoungquist

For 0402s we use type 3 paste. We have .006 and .005 stencils. The .006 works okay but .005 seems to give us slightly better results. We use a 1:1 ratio for the aperture to match the pad, round pad not needed. With accurate placement and a correc

Topaz blow part off when picking up.???

Electronics Forum | Wed Jul 29 07:02:50 EDT 2009 | thanhnguyen

yes i did test it manually, and it working fine.At the plug in, that the only way to plug it. With my ohm meter,24 volt present when you turn it on. The wierd thing is it blowing during head going down,then will sucking up when it move up.Vacuum valv

Are there pick and place machines for loose components?

Electronics Forum | Fri Jul 31 12:53:58 EDT 2009 | dyoungquist

On our Mydata machine, we place a piece of scrap bare pcb next to the pcb we are loading. Using double sided tape, we attach the cut tape strip to the bare pcb, then program the machine to pick up the parts from that location. The smallest Mydata m

BGA post SMT reflow?

Electronics Forum | Sat Aug 15 09:34:06 EDT 2009 | davef

It would be nice, save you money, improve yield, improve reliability, etc. if your reflow process was more effective. It sounds like you're not getting the part hot enough during reflow soldering. Tell us about: * Measured temperature on this bluetoo

Vapour phase soldering - problem

Electronics Forum | Wed Aug 19 01:00:13 EDT 2009 | sergey2007

Hi! Thanks to everyone! Josh, I don't think it could be something wrong with the mechanics, as just one component was rotated. Anyway, we will check the mechanical parts of the oven. LarryD, thank you for the advice. But what is the physics of the

Looking for a rework station with vision system

Electronics Forum | Thu Aug 27 18:22:37 EDT 2009 | zombie

Hello, thanks for the help. Since this is only for prototypes we can avoid lead-free. Also our boards are not that big or thick. On the other side, our parts are small, the smallest is 1.5x1mm. Would the DRS24 work? What brand is usally more affor

Programming Mydata

Electronics Forum | Mon Nov 09 14:51:53 EST 2009 | jlawson

vPlan from Valor also is strong with Mydata, from general validated, scubbed, centroid corrected, rotation corrected outputs (same sort of times as mentioned with Aegis users to full optimistation part data generation on demand....(Aegis can not offe

Mysterious reflow problem

Electronics Forum | Tue Sep 22 08:35:47 EDT 2009 | cman

Did you try pre-tinning your board on this suspect pad/s to see if it improved wetting/solderability prior to printing/SMT placement and reflow? Does the pad/s not soldering tie to a ground layer? I would connect a T/C to each pad of the same part an

hole blister

Electronics Forum | Sun Sep 13 19:56:21 EDT 2009 | 89jeong

Hi All I have a pig problem after reflow. It is a blister in hole.It happend after reflow(Lead free solder) I touched the blister with tweezer. The plating was lifted off easily How do i do? What is a root casue? Drilling or plating? Is it possible

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