Electronics Forum | Tue Aug 09 13:58:24 EDT 2005 | Cmiller
I saw a Mydata demo and it seems like it would be pretty easy to pull a magazine back a few inches then tip it up into the head. I assume this would cause catastrophic damage. I was told this has never happened in North America. Which means it must h
Electronics Forum | Tue Aug 09 23:27:24 EDT 2005 | grantp
Hi, I think there are two models of HYDRA, and is it for both? We exchanged the MY9 we had for a MY12, and they said it had a newer model of HYDRA that was easer to align, and maintain, and I wonder if that was part of it, or if this is still an iss
Electronics Forum | Tue Aug 09 10:01:26 EDT 2005 | pr
We have some large plated through holes, that we protect with hand placed Kapton dots before they go into the wave. Is there a better option? We are going to see if the boardhouse can put them on for us but I was curious how others are/would do this.
Electronics Forum | Tue Aug 09 11:56:01 EDT 2005 | Rob
We sometimes use a peelable mask the the PCB manufacturer (board house) adds as part of their process. It may seem an expensive option but avoids: Raising P/o's for tape/peelable mask as consumables booking & inspection Booking out to the shop floo
Electronics Forum | Tue Aug 09 12:12:57 EDT 2005 | davef
Why are you placing Kapton dots on your board prior to wave soldering? * Prevent solder from touching the hole and the area around it. [If so, why do you need to do this?] * Prevent solder from flowing up through the hole and coating portions of the
Electronics Forum | Tue Aug 09 13:51:03 EDT 2005 | patrickbruneel
You can also insert a stainless steel screw the size of the hole in the board before wave soldering, this will prevent the solder from wicking up to the top or close the hole (this is real cheap). I still remember the good old days using toothpicks t
Electronics Forum | Wed Aug 10 12:05:11 EDT 2005 | Rob
Hi Pr, No idea what the material is - we haven't usd it for a while now, but it was flush & didn't cause any printing problems on double sided reflow. Your board house should know all about it - I would suggest some but ours are all UK or China/Tai
Electronics Forum | Tue Aug 09 13:15:27 EDT 2005 | davef
Initial points for investigation are: * What temperatures are you measuring on the leads that do not reflow well? [How does this match with the paste supplier's recommendation?] * Does the component take solder after being dunked in the solder pot? *
Electronics Forum | Wed Aug 10 04:33:35 EDT 2005 | saiwong
First, butget. Second, flexibilities. If you have tight butget, you better choose used SMT equipment instead of the new one. It will save you hundreds of thousand dollar. Second, if you change model more frequently, you do not have many to choose. Fu
Electronics Forum | Wed Aug 10 07:55:21 EDT 2005 | ajaydoshi
we are using heareous F381, F352 no clean solder paste. specially in qfp for high frequency board we observe that cleaing / removing of ' no clean flux 'is require. if we do not clean same most of time after all test & envioumental test it shows pin
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