Electronics Forum: electronic (Page 3956 of 7930)

Re: Inprocess Cu plating measurement tools/machine for Flex.

Electronics Forum | Tue Feb 01 12:00:01 EST 2000 | K. Ckak

Hi Folks, I am looking for some info. and possibly a source on measuring inprocess copper plating thickness for Flex PCB manufacturing facilities. I have tried XRF, E-Current method but the supplier told us that it wont work with Flex material - th

Re: Inprocess Cu plating measurement tools/machine for Flex.

Electronics Forum | Wed Feb 02 20:43:56 EST 2000 | Dave F

KC: Try: 1 http://www.rogers-corp.com/cmu/techindx.htm Circuit Materials Division Tech Tips Index: Techtip #9: Measurement of Copper Thickness by the Weight Method 2 Andy Magee - Flex Guru Senior Consultant, Bourton Groupmagee@donet.com (937) 435-

Re: Vitronics 722 Oven

Electronics Forum | Tue Feb 01 18:29:03 EST 2000 | Roland

Gary, You may have luck by posting this info in our PCB Capital Equipment Mart-wanted section. The Mart also contains a large listing of equipment. Please also take note that we have a few used equipment dealers as advertisers whom you may want to

Flash Gold over Nickel - PCB finishing

Electronics Forum | Tue Feb 01 06:54:19 EST 2000 | Roni H.

Hi, Does anyone have experience with gold over nickel (electroless) PCB finish: - Repeatble quality from PCB mfg. (very "painfull" with ENTEK). - Environment condition sensitivity. - Thermal processes sensitivity. - Solderability (Reflow & wave). -

Re: Touch up on 0603 Chips ( Ceramic caps)

Electronics Forum | Wed Feb 02 09:58:00 EST 2000 | Dave

Ashok, I don't understand what they're saying about the gray joint. Usually a gray joint has to do with too much heat. Also, the higher the temperature the lower the fillet because of the increased viscosity of the solder. Correct? Wouldn't yo

Mydata pick and place

Electronics Forum | Mon Jan 31 12:15:32 EST 2000 | Neil

I am looking for a Mydata users group, one possibly located in the Chicago area. If such a group does not exist, I would be more than happy to help start one. I have an older Mydata TP9 (non-UNIX) machine, with weak (yet expensive) support from the m

Re: Plastic fingers for wave solder machines

Electronics Forum | Wed Feb 02 17:16:44 EST 2000 | Larry

Boca, We mix them with titanium fingers, been running them for 6 months with no problems with heat. They break off rather then mangle like the titaniums, which can be a good thing! Do I like them? Sure! I found they were 1/2 the price as titaniums an

Re: Fuji Ip2 macro BGA Placment

Electronics Forum | Sat Jan 29 00:30:09 EST 2000 | Micah Newcomb

Mike, I found the easiest way around your issue is to get your parts in T&R rather then trying to modify your machine. Some part manufacturers may be unwilling to T&R your part but there is always a ready and willing company whom would be happy to d

Re: Fuji Ip2 macro BGA Placment

Electronics Forum | Sat Jan 29 02:30:14 EST 2000 | Dean

5K$. Of course I remind myself that when these machines were designed BGA's didn't exist. I had no choice but to purchase this option as a new machine was out of the question and I place around 15,000 BGA's per month on this line. So the ROI was v

Solder balls after wave soldering

Electronics Forum | Fri Jan 28 05:06:01 EST 2000 | Istv�n Dominik

Hi! I have problems with the SMD boards during wave soldering. Mainly between the pins of the SOICs there are small solder balls. Maybe somebody had the same problem and could solve it. Please give me some ideas what causes this problem and how it


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