Electronics Forum | Tue Jul 28 02:28:48 EDT 1998 | Bob Willis
The causes for solder on gold are: Paste wash offs Dirty stencils Dirty under stencil cleaning cloths/no solvent Poor handling The most common reason is wash offs when there is a couple of balls left on the tabs and they reflow. With correct profile
Electronics Forum | Fri Dec 08 21:26:44 EST 2006 | billwestiet
You already have some good answers. A chemical isolation zone for RMA is a good idea. If you are looking for new see the two references you have and Austin America. If you are looking for used, see us at http://www.ietechnology.net. We presently
Electronics Forum | Sun Aug 08 04:36:02 EDT 1999 | Brian
Dave Frankly, I think you may be barking up the wrong tree. Like DaveF, I suggest that the process would be horrendously expensive with masking and so on. The $64,000 question is whether what you propose will serve any useful purpose. I venture to
Electronics Forum | Wed May 26 15:56:08 EDT 1999 | Chrys Shea
| | | we have just started wave soldering passive SMT components and through hole. We are having trouble with voids on the SMT components. It is very random, but effects a lot of TSOT's. We are using an electrovert with a chip wave. Are there any
Electronics Forum | Sun Apr 25 12:24:45 EDT 1999 | Chrys Shea
| Hello all, | | Our guys here still have some questions on the "optimized" profile which sees a more moderate ramp up straight to reflow temperatures versus the conventional profile which has a plateau at around 150 Celsius. If the optimized profi
Electronics Forum | Sun Apr 25 14:43:34 EDT 1999 | Earl Moon
| | Hello all, | | | | Our guys here still have some questions on the "optimized" profile which sees a more moderate ramp up straight to reflow temperatures versus the conventional profile which has a plateau at around 150 Celsius. If the optimized
Electronics Forum | Sat Aug 29 08:43:35 EDT 1998 | Dave F
| Hi, Friends, | Could you please recommend me some solder mask materials and equitements for high quality solder mask? Details such as company name, phone numer et al are welcomed. Thanks! | Have a good day | Xingsheng Xingsheng: Consider the follo
Electronics Forum | Fri Jul 24 12:53:30 EDT 1998 | Brad Kendall
| | | I am considering of Philips FCM for the next production. | | | But I have heard a rumour saying this machine is not capable for checking the lead polarity due to the laser scan system. | | | i.e. SOT might be populated in wrong direction. | | |
Electronics Forum | Thu Aug 13 14:53:17 EDT 1998 | Timm
| | | | I am considering of Philips FCM for the next production. | | | | But I have heard a rumour saying this machine is not capable for checking the lead polarity due to the laser scan system. | | | | i.e. SOT might be populated in wrong direction.
Electronics Forum | Mon Jul 27 12:43:19 EDT 1998 | Adrian
| | | | I am considering of Philips FCM for the next production. | | | | But I have heard a rumour saying this machine is not capable for checking the lead polarity due to the laser scan system. | | | | i.e. SOT might be populated in wrong direction.
