Electronics Forum | Tue Jan 09 08:14:33 EST 2007 | Rob
Can I also add Manufacturers replacing copper with steel in component leads? Steel has lead in it to make it more ductile, which, although exempt up to a certain point in steel, it still causes XRF failures.
Electronics Forum | Mon Dec 11 08:52:11 EST 2006 | beta
Hi, I checked out your component.They are differnet dimensions. You say you are not using the recommended overprint ? if this is the case, I would imagine that is your problem. If you want to contact me off line to discuss further plesae feel free.
Electronics Forum | Sun Dec 17 23:22:17 EST 2006 | bigdaddysoy9
If you are talking about a chip capacitor, then I think it's 50% (of component width) side to side for class 1 and 2. And 25% for class 3. There is no end overhang permitted for all 3 classes.
Electronics Forum | Fri Dec 22 10:03:54 EST 2006 | realchunks
solder paste [ top side ] Actually it's kinda the norm in most places. Subjects your active components to one less heat cycle.
Electronics Forum | Sun Dec 31 10:27:39 EST 2006 | pima
Thanks Mika. I will have opportunity to check it out in New Year, because now we dont have production. So far we have beeen using vision type 11 and to be honest this type of defect, that placement of TNTA at flank side, happend very seldom. Usually
Electronics Forum | Mon Jan 15 11:43:13 EST 2007 | fredericksr
celsius or fahrenheit? I am not entirely familiar with the deeper details of HASL, but 130F-140F is adequate to clean many of the water-soluble fluxes used for component soldering.
Electronics Forum | Thu Jan 04 10:07:07 EST 2007 | Mario Scalzo, CSMTPE
davef is correct. The solder is indeed wicking to the hottest part of the leads. Slowing down the conveyor will alloy the board and component to come to temperature at a lower delta T.
Electronics Forum | Wed Jan 17 21:32:14 EST 2007 | Jnet
Agree. Drop the conveyor speed.....and drop the zone temps accordingly. This should allow the board leads and components heat at a more even rate and stop the over temp. issues. I do not suggest running only the bottom heaters this can bring new issu
Electronics Forum | Wed Jan 03 15:11:09 EST 2007 | kennyg
Is it acceptable to apply an acrylic conformal coat, cure and then apply a silicone RTV on top (for staking tall components)? Should there be a concern with the bond between the acrylic and the RTV?
Electronics Forum | Sat Jan 06 02:12:36 EST 2007 | backbenchers
i have 1 customer using our reflow oven, he is facing the problem that after taking the boards from reflow oven ICs & some resistors felt down.they are using our glue dispenser also, the glue is not fixed with the component. wht will be the solution
