Electronics Forum | Mon Mar 09 11:43:59 EDT 2009 | pcbrown
Here is a formula that may help. C/P C= Component's weight in grams P= Total pad area in Sq. in. Must be less than or equal to 30 Parts larger than a 68 pin PLCC should use an adhesive. Hope this helps.
Electronics Forum | Wed Mar 11 09:28:34 EDT 2009 | wrongway
surface tension is what holds the parts on when solder is flowing I would add some glue under the parts that I placed on the frist side the glue will add more surface tension. this is if you have a glue dispencer in your line already.
Electronics Forum | Wed Mar 11 12:33:28 EDT 2009 | realchunks
Make sure your oven conveyor is running smooth as well. One bump or bad vibration will knock parts off too. Lowering the bottom zones in spike zones will help too.
Electronics Forum | Fri Mar 13 03:49:27 EDT 2009 | nagesh
Thx a lot brown.Well this worked out better. earlier i had tried using a heat resistant tape on the component ended up with issues. Thx Nagesh
Electronics Forum | Tue Mar 17 02:54:44 EDT 2009 | lococost
No. It took you 5 sentences to tell me absolutly nothing. Let me guess, you're a consultant to managers or worse yet, a manager?
Electronics Forum | Thu Dec 11 10:30:30 EST 2014 | rgduval
Don't bother trying to use Rushpcb. I've been waiting a week for a quote, and they won't tell me what the issues are with my data. They say they have to call to talk to me.
Electronics Forum | Wed Mar 04 11:51:42 EST 2015 | hlandis
We have 4 model nr 2015 and 3 model nr 0.100 machines that we don't need, and you can have cheap, if you are quick. Thanks, Harry Landis Intronics Power, Norwood MA
Electronics Forum | Wed Feb 05 11:10:01 EST 2003 | J. Dumont
Is anyone looking for any PCB assembly work to be done?? We currently build all our boards for our many world class products in house and will possibly be branching into building assemblies for outside companies in the near future. Pricing will be ve
Electronics Forum | Thu Apr 12 08:48:35 EDT 2007 | stepheniii
It depends on the contract. Is it they build what they are told to build or they are saying they are building leadfree. And it's not the assembly or the part that has to be leadfree. It's the parts of the parts that have to be less than the given p
Electronics Forum | Mon Mar 09 03:45:19 EDT 2009 | nagesh
I have a double sided assembly board having more no. of QFP's & IC's at both Top & bottom.Is there any concern about this??.COz. i have the profile set to be almost same for Top & Bottom.Worried whether bottom side IC's fall/ Shift during Top side re
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