Electronics Forum | Thu Apr 22 10:43:25 EDT 2004 | tigerlordgm
We had a great deal of trouble cleaning adhesive residue from stencils using an alcohol stencil washer. Same kind of thing, adhesive build-up in aperture corners. The solution we came up with was to convert our stencil washer to run Zestron ES200, a
Electronics Forum | Wed Apr 21 10:37:34 EDT 2004 | russ
Only the manufacturer of this part can tell you if subjecting the entire assembly through reflow temps is okay. It is not a good assumption that "if a part can be hand soldered it can withstand reflow" there are many connectors/headers/buzzers/etc
Electronics Forum | Wed Apr 21 08:53:04 EDT 2004 | TONY
I am having problems with one certain board that is gold immersion. I know it is not oven problems or part problems because it is various parts that are moving during reflow. Also I have not had problems with any other boards going through the same
Electronics Forum | Wed Apr 21 17:27:27 EDT 2004 | russ
We always use the regular production reflow profile when we use this method. Since you don't want to do that, All that is required is to ramp the part up to temp to get the balls to melt. If you don't exceed 2C per sec. in a ramp you will be fine.
Electronics Forum | Wed Apr 21 15:28:02 EDT 2004 | markhoch
I have a new customer who is recommending a Sulfamate Nickel Finish for his boards. I'm not really familiar with this process. Is anybody else? How does it differ from electroless nickel? Can a standard NC solder paste cut the mustard with this stuff
Electronics Forum | Wed Apr 21 20:08:37 EDT 2004 | Dreamsniper
Now the ball starts rolling. I'm lookin' for a new aqeous cleaner. Do I really need chemical cleaners or saponifiers, surfactant etc. for an Aqeous Cleaning Machine in removing OA or Water Soluble flux from under my 1.27mm Pitch BGA down to 1mm Pitch
Electronics Forum | Wed Apr 21 21:27:11 EDT 2004 | davef
Dreamy "Ball rolling"? Are you a bowler? My nephew does the audio for the ESPN2 production of the professional bowling tour. Search the fine SMTnet Archives for discussion on assessing cleaning machines. For instance: http://www.smtnet.com/forum
Electronics Forum | Fri Apr 23 07:37:49 EDT 2004 | pjc
Waste Water from any cleaner must be recycled or treated before going to drain. That is the case in most states in the USA. The wash solution that is mixed with a chemistry cannot be processed thru a water recycling system, only the rinse water can.
Electronics Forum | Tue Jun 15 07:52:45 EDT 2004 | chandramohan
There are many manufacturers, but if you think of a Indian manufacturer you can choose very good manual printer - Rollo from Synergytech Automation Pvt.Ltd. based in Pune. Rollo has all the features of semi-automatic stencil printer which i think ver
Electronics Forum | Tue Apr 27 14:14:10 EDT 2004 | finepitch
Steven, While agreeing with your method here, I also would like to ask a question since we're right on that subject. Have you ever experienced problems with IR heating while working with a Heat-Slug BGA, or a Viper BGA where the whole top is covere