Electronics Forum | Wed Apr 08 11:33:51 EDT 2009 | 1036
2) STD FR4 material with HASL finish, 4 layer board. Reflowed under tin-lead temps with another 4 layer board same time(no delamination problem). 3) We uasualy do not pre-bake board unless board is too old. 4) We do not have the board on hand right
Electronics Forum | Sun May 10 09:29:23 EDT 2009 | davef
Q1: Can I know is Chromium restricted from RoHS? A1: RoHS Restricted Substances (Pb, Hg, Cr6+, PBB, PBDE, Cd) Q2: Is this chemical will effect the content of Lead free solder? A2: It's possible that the metals that comprise the stainless steel probe
Electronics Forum | Wed May 20 17:56:51 EDT 2009 | dyoungquist
I have attached a pdf showing the dimensions for the QFN we placed. First, The pins on the part are not only on the bottom side but also wrap around to come up each of the 4 sides of the part as shown in the side view in the attached pdf. This i
Electronics Forum | Mon May 25 20:17:56 EDT 2009 | paligora
Hi , we have problems with the pick & place nozzle when assembling data switches on the PCB. The SMT switches have top surface with diameter of 2.6mm and our supplier is suggesting that if we need to replace the current nozzle which has oval suction
Electronics Forum | Thu Jun 04 17:32:20 EDT 2009 | bigdaddysoy9
If you are talking about assemblies, Class 1 is like cheap toys or something you wouldn't expect to last very long. Class 2 would be components for a television, air conditioner, automobile (except safety critical). Basically, things that you would b
Electronics Forum | Tue Jun 09 13:16:18 EDT 2009 | jack100
We are looking at feasibility concerns of using a QFN 16 from Motorola. I have a couple of questions regarding their recommended PCB design guidelines. 1) Does anyone know why they would recommend coming out of the pads with a narrow trace (.1mm wid
Electronics Forum | Fri Jul 10 10:42:58 EDT 2009 | tronteq
Hello, I can offer training, service & support on the Quad QSP-2. Up until November 2008 I was employed by Tyco Electronics who aquired Quad back in 2000. I have set up my own company with Tyco's blessing to offer support on their behalf in Europe. T
Electronics Forum | Sun Jul 05 23:30:01 EDT 2009 | jeffr
A feedback error means that a particular axis did not respond by moving in a normal manner. Check the following:- 1/.. Mechanical binding. (Servo Off, then check axis moves without binding). 2/.. Check encoder plugs of that axis. Note that Philips/Ya
Electronics Forum | Thu Jul 23 09:59:11 EDT 2009 | esolano
Hi all, Zone 11 on a XPM2-1240 does not want to heat up and would not stay at set point. Does anyone have any ideas how to solve this problem? Or if you know of a technician in the Southern California area that can perhaps fix this problem, please
Electronics Forum | Tue Aug 04 10:36:28 EDT 2009 | kpm135
I haven't been able to access any old forum posts. Searching gives me a selection of old posts but every time I click on one I get the following screen: Internal Server Error The server encountered an internal error or misconfiguration and was unab
