Electronics Forum | Mon May 11 09:56:41 EDT 2009 | dmoquin
Hi, Can anyone help me with this issue? I am trying to import text/Excel coordinate data into an MCS30. The programming manual doesn't cover importing the data, just line by line data creation (manual typing). If anyone can help me with this I woul
Electronics Forum | Tue May 12 07:31:29 EDT 2009 | jdengler
Dana, I forgot that the MCS30 also needs host software installed. Did you recently buy this or have you had it for a while? If you have recently purchased it off of a dealer they may have what you need. You could try contacting some of the used d
Electronics Forum | Mon May 11 12:50:55 EDT 2009 | stepheniii
What is the purpose of glueing it? If it is glue the bottom side parts followed by reflowing the top side parts followed by wave soldering the bottom side parts, then it's easy to measure. Hold the board with the 0603s facing down. If they don't f
Electronics Forum | Tue May 12 07:26:16 EDT 2009 | emmanueldavid
Jorge, The basic thumb rule to measure Adhesive Strength remains as bonded Chips at Post Reflow should not move around or misplace when Your Thumb Finger try to do so which called as Thumb Force Test. However as Dave stated, there are various Stre
Electronics Forum | Fri May 15 08:04:32 EDT 2009 | rwyman
higher temp/shorter time). Solder mask may be a factor as well. I've seen parts get knocked off where the glue is still affixed to the part, along with a nice piece of solder mask from the board. If you can knock a part off with casual contact, th
Electronics Forum | Wed May 20 09:52:50 EDT 2009 | dwelch123
Use a push/pull tester. I use an OBA inst. works Ltd. tester. Just because mask comes off with bonder doesn't mean bonder is strong or cured right. Mask can be weak in between pads do to area size. Do it right and you'll know for sure. To many people
Electronics Forum | Mon May 11 19:14:17 EDT 2009 | binow
Is there any reason a dish washer would not work? Our volume for this is really low ~20 per month. Currently we use contact cleaner and a brush to clean the contacts on a few connectors. I was thinking about going the Ultrasonic route but wondered if
Electronics Forum | Fri May 15 13:17:18 EDT 2009 | tomsmiley
We implemented an inexpensive home dishwasher solution last year for cleaning assemblies. It works very well for both lead free and tin/lead cleaning. DI water at room temp is all we do and the boards come out squeaky clean. We had to use the least
Electronics Forum | Wed May 20 17:00:56 EDT 2009 | dyoungquist
We just placed a 56 pin QFN, 1 per board, on 10 boards and had zero defects. A good paste job, proper placement and a correct oven profile are the keys. If these are set up correctly, on larger runs your defects won't be zero but they should be le
Electronics Forum | Wed May 20 17:18:09 EDT 2009 | daxman
Just out of curiosity, how are you or anyone else determining a defect? Last I checked, IPC had no criteria yet for solder defects for QFN components. Has this changed? Biggest problems we see are voids which our x-ray shows a lot of. Our problems
.gif)
