Electronics Forum | Thu Nov 29 15:52:53 EST 2007 | jmelson
Some other machines are a lot simpler. Here's how the Philips (mady by Yamaha) CSM84 works. Smaller tape (8 and 12 mm) feeders are all mechanical. A plunger on the head pushes a lever on the feeder at the same time the head comes down. First, the
Electronics Forum | Wed Jan 30 12:53:58 EST 2008 | tonyamenson
In approximately one month I am installing 2D at our DEK print station. We are going with the basic (cheap) software options and 2D camera. After it is up and running we will determine if it is indeed useful. At that point we will decide on the adva
Electronics Forum | Wed Feb 13 09:17:47 EST 2008 | scottp
The causes of voids are extremely paste dependent. I did a literature search a couple years ago and the papers all disagreed with each other - one would say turn knob "A" to the right and the next would tell you to turn it to the left. I did my own
Electronics Forum | Sun Feb 24 19:10:17 EST 2008 | larryd
Skill and experiance level of assemblers is critical. High skill and experiance with the type of assembly, print and BOM and hgihlighters. Day labor would be 5 to 10 components for each assembler, already prepped with pictures or drawings showing wh
Electronics Forum | Mon Feb 25 11:12:32 EST 2008 | hegemon
It sounds more as though you have a profiling problem primarily, however, if your placement is not square to the board, then you should get your machine setup correct first. After that you can get to the profiling. If the BGA is brought up to tempe
Electronics Forum | Wed Mar 12 09:02:40 EDT 2008 | davef
Your question implies that you would like to find a way to use the device you received with the BOM, rather than returning the part for the correct item. Given that situation, choices are: * Glue the part on the board bug-up [upside-down] and run jum
Electronics Forum | Tue May 13 08:26:29 EDT 2008 | davef
First, on your reflow temperature comment: The 183*C focus for reflow recipes for tin-lead solder is a falicy. If you held a recipe for tin-lead solder at 183*C peak, it would never reflow. Recipes for tin-lead solder need to be at liquidus plus 20*C
Electronics Forum | Wed Jul 02 09:22:20 EDT 2008 | dmunson
Thanks Real Chunks. We currently have an RPS opus selective solder machine that we plan on keeping. It is configured as a 3-nozzle (!) one-pump (!!) point selective solder machine w/ nitrogen preheat. Custom wet nozzles. We use lead free SN100C sold
Electronics Forum | Fri Aug 08 11:37:09 EDT 2008 | pjc
Yes, sure. In fact in some applications ICT is coming back. Mainly due to the fact that more and more SMT discrete components have no markings, so AOI cannot tell you if you have the correct value on the PCB. Fixed pin or flying probe ICT is a valuab
Electronics Forum | Fri Aug 29 10:37:44 EDT 2008 | gdzuber
Very interesting problem because it shows how systemic this kind of problem can be. So many variables, right? Firstly, discussions here are similar to everyone's postings, but there are some different observations. The manufacturer��s profile, we t
.gif)
