Electronics Forum | Tue Nov 01 09:57:18 EST 2005 | Chris
Hi, I am experiencing cracked solder joints on ceramic resonators after the ultrasonic plastic weld process. PCB assy is placed into plastic housing and then housing halves are ultrasonic welded. Not a soldering problem. I know this component is
Electronics Forum | Wed Mar 05 09:34:32 EST 2003 | HAROLD LICHT
WE HAVE A NEED TO BOND SOME LOW TEMPERATURE LED'S TO A THIN CIRCUIT BOARD LAMINATED TO A HEAT SINK. HAS ANYONE USED AN ULTRASONIC WELDER TO WELD COPPER GUL WING LEADS TO A COPPER PAD USING ULTRASONICS? IF NOT HAS ANYONE USED RESISTANCE SPOT WELDING
Electronics Forum | Tue Nov 01 10:48:24 EST 2005 | Rob
Can't say too much about the solder joints issue, but about a decade ago we did have a lot of problems with resonators being damaged by harmonics from Ultrasonic board washing & Ultrasonic welding. However this mostly manifested itself as cracking i
Electronics Forum | Mon Apr 22 09:07:43 EDT 2002 | pjc
Francis, The potting encapsulation process was in the mfg. of flash-disk devices built on a DIP formfactor. Compact flash do not normally get potted. Ultrasonic welding or snap-togther is methods for closing the compact flash housing. The potting mat
Electronics Forum | Mon May 09 10:52:29 EDT 2005 | patrickbruneel
Hannu, First and for all I have a problem with your question "tried and trusted" for the simple reason that you are going to change too lead-free. Ultrasonic soldering or welding is not new, as far as I know it is only used applying the ultrasonic
Electronics Forum | Fri Apr 19 23:02:38 EDT 2002 | francis khoo
Hello Dave, Thanks for you input. The website suggested to look into is exactly what I was looking for. I am very happy. Apart from the SMT portion of the process, I was looking at the plastic assembly as well. Do you know if the plastics are welded
Electronics Forum | Thu Oct 26 04:36:05 EDT 2006 | aj
All, We have a Ultrasonic Welder "Sonotronic 35/1200" manufacturer M.E.E. in Johanesburg. The machine was here when I started and we use it probably once or twice a year. Basicall welds a Plastic key housing together,. I have no manuals for this m
Electronics Forum | Mon Nov 27 13:36:24 EST 2006 | cyber_wolf
The fluid heats up to 105-110 from the ultrasonics running, and or from the fluid filtering pumps. The rinse temp is always the same as the wash. It is a single tank with a partition welded in between. (One side rinse, and the other side wash) FYI
Electronics Forum | Mon Aug 27 15:06:29 EDT 2001 | davef
This otta push Wolfgang over the top ... Recommended reading G.G. Harman, Wire Bonding in Microelectronics : Materials, Processes, Reliability, and Yield, 2nd edition, McGraw-Hill Electronic Packaging and Interconnection Series, 1997. G.G. Harman, R
Electronics Forum | Thu Jul 04 23:17:24 EDT 2019 | 123456789
Today we will talk some other problems you may meet in the wedge bonding work. If you have any other supplement or suggestion, welcome to leave us message. Appear welding spot indentation on the frame, what's the causes? How to solve? 1.The Wedge’s
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