Electronics Forum | Thu Apr 09 06:22:27 EDT 2009 | qualityguy
We aware of the extend time for cure, and in the CA activity we tried plasma etch and expose the sample to the current process, a screen test of 4 cycles -50C to 125C and the CC held in place. Std IPC tape test passed in current process and modifie
Electronics Forum | Fri Apr 10 13:25:08 EDT 2009 | jefflkupkt
Layer 2 is the ground plane layer of a 4 layer board. After installing a 2.5 mm DC power jack and 0.1 center SIP header by hand, the ground pin disconnects and causes an open. My board supplier said they passed Electrical Test. Prepreg was within
Electronics Forum | Fri Nov 20 14:50:13 EST 2009 | davef
One of our instruments has a high impedance front-end. We: * Passed functional test in the environmentally controlled shop. * Failed test, on the same unit, while carrying it to burn-in chambers in an uncontrolled part of the plant. Solder flux resi
Electronics Forum | Thu Feb 25 15:24:58 EST 2010 | jdumont
We use the OM-5100 and wash it with relatively good results. Just dont let it sit longer than a few days before wash. We've used Zestron AC200 and A-250 in a batch cleaner set to 140 wash temp for 8-10 min @ the recommended concentrations. We have h
Electronics Forum | Wed Mar 24 00:03:20 EDT 2010 | boardhouse
Hi Itzik, it looks like you receive a board from your manufacture that they did solder mask rework on. it looks like they stripped tried to strip the mask off the board. Was this the only board that was like this or did the whole order look like th
Electronics Forum | Fri Apr 23 10:18:48 EDT 2010 | spitkis2
Graham, When performing such a temperature variation test, do you attach the thermocouples so that they are in contact with the PCB's pads or are they reading the air temperature? If they are attached to the PCB, I take it you reposition the board
Electronics Forum | Thu Apr 22 10:21:16 EDT 2010 | remullis
I am looking for anyone who has a C5 or equivalent that has successfully been able to pass large QFP parts that require 4 lead sets. The part I am working on is 31.75mm. The vision system takes four snapshots of the part and stitches the information
Electronics Forum | Tue Jun 29 14:44:26 EDT 2010 | rgduval
There are some good suggestions here...reflow pallets, and copper balancing. We would also suggest verifying that your problem is not caused by moisture. How much time passed between first side and second side reflow, and how humid is the environme
Electronics Forum | Wed Jul 07 03:23:39 EDT 2010 | propox
Hi, I have two Philips Assembleon lines and hard drive form computes was broken, I am looking GemLine ED ver.3.13. Assembleon told me that the software you are asking for is obsolete and not available anymore. The machines have passed the status of
Electronics Forum | Wed Aug 04 08:37:24 EDT 2010 | keiths487
Just to get the simple stuff out of the way. Make > sure that no one has changed the machine nozzle > data to a different type. Then try actually > changing the nozzle data and putting that type > into the head. If this passes it will at least >
