Electronics Forum: cfm (Page 4176 of 7894)

screen printer - vision

Electronics Forum | Thu Apr 29 14:41:12 EDT 2004 | pjc

OK if the paper is transparent and you can adjust the table X-Y-Theta under the paper- without moving the paper - the align with the solder lands on the board. If you have a DEK or MPM machine, the Mylar frame is like $300. I belive other printer mfr

screen printer - vision

Electronics Forum | Thu Apr 29 15:05:29 EDT 2004 | Kirk

we have sm-tech benchmark 90 and we think about Microflex with vision. how i teach the vision? I have two images. One is reference image and is it storage in system how can i create it (is it possible simply use paper as i said before then teach vis

Chip placement pressure check.

Electronics Forum | Wed Apr 28 10:29:04 EDT 2004 | dougt

By "placement pressure" I assume you mean force. I don't know of placement machines that have transducers mounted on the placement spindles that actually measure force. We made a board with a force sensor mounted through a hole so that it was the sa

Vibro fider problem

Electronics Forum | Thu Apr 29 01:55:27 EDT 2004 | Frank

Contact your manufacturer of the machine and see if the belt feeders are available. Comtra Systems is the maker of the belt feeders and I do not know if they sell direct to the end-user. I don't have any contact information for them. I know they

Parylene Coating

Electronics Forum | Mon Apr 26 15:10:46 EDT 2004 | pjc

Parylene coating is done in vacuum curing chambers. This process drives the material under components and into all nooks and crannies. There is nowhere on the board assembly that can escape from the material! I've only seen Parylene coating process u

bga reflow in water clean solder

Electronics Forum | Tue Apr 27 08:14:59 EDT 2004 | iqbal

Is anybody doing BGA soldering water clean solder. If yes how you are ensure cleaness. We have boards with Four BGA and 2000 chip and ICs.We are processing with no clean solder but we are getting bad wetting so now we are planning to switch to water

MPM screen printer

Electronics Forum | Wed May 05 01:42:06 EDT 2004 | fastek

Kuru- If you have a bad tactile sensor....find out what the part number is and you can order it from MPM. If you don't have the part number, MPM won't help you unless you pay a price to register the machine. You're other solution is to post an ad on

MPM screen printer

Electronics Forum | Thu May 13 16:54:55 EDT 2004 | Kuru

I just installed a used Tactile sensor unit, Now it now reads error "Tactile Sensor sensor never closed". If anyone knows or seen this problem pls help. I have adjusted the flag on the photosensor.The photosensor appear to be functioning but the step

Solder Ball under BGA

Electronics Forum | Tue Apr 27 12:01:10 EDT 2004 | Dreamsniper

Hi, Can anyone help me as to what is acceptable and reject when it comes to solder balling under BGA's? I've got some BGA's with solder Ball but they seemed to be attached and they are about 10% of the size of the actual soldered BGA joint size. Our

Board Support for Double-Sided PCBs

Electronics Forum | Fri Apr 30 15:11:53 EDT 2004 | pjc

MPM has a new board support system called GelFlex. It can be used on UltraPrint 2000 machines as well as AP series, UP1500 and AccuFlex models. For more info, go to http://www.speedlinetech.com/mpm/gel-flex.aspx also, contact Chris Wild at Speedline


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