Electronics Forum | Thu Aug 24 08:50:22 EDT 2000 | Dr. Ning-Cheng Lee
The conversion into Pb-free very likely will be dictated by the feasibility of conversion. Exemption may be allowed for those sectors facing greater challenges. For instance, the industry is having difficulty in finding acceptable Pb-free alternative
Electronics Forum | Wed May 04 08:41:01 EDT 2005 | Hannu
OK, granted, this is not exactly your hi-tech SMD production but pertains to lead-free so I'll post this anyway: Can anybody share their experiences on lead-free dip soldering of transformer terminals? I have not done any testing myself but have see
Electronics Forum | Sun Sep 25 11:18:16 EDT 2005 | CS
Hi! I'm facing a strange problem where PCB expanded in X & Y-axis after bottom-side reflow. When the PCB send for Top-side printing process, it is abvious that the printing alignment on the PCB's pads are out. With the problem mentioned above, I am
Electronics Forum | Sat Oct 01 01:04:47 EDT 2005 | ck
I face a problem where the components termination is non lead free but solder alloy is lead free. Thus i am using hybrid reflow profile. The specs for the reflow profile i am using: reflow temp. 120 to 160 deg C; time 90 to 120 sec. As for the pak te
Electronics Forum | Thu May 31 03:12:18 EDT 2007 | vinitverma
Hi John, You can write to me offline at vinit.verma@prosemtechnology.com and write the exact problem that you face after you have generated the action spec using PPS Pro 8.1. What is the problem that you're facing. The coordinate system is taken ca
Electronics Forum | Wed Jul 18 02:19:50 EDT 2007 | vijayanandh
PANASERT MViiF --> PANASERT MSF --> BTU Reflow Currently we're facing massive problems with MViiF(chip shooter) nozzles being damaged and broken. Anyone around who is facing the similar problems? We're looking into the feeders (worn out base/problem
Electronics Forum | Thu Aug 14 16:18:08 EDT 2008 | mbnetto
Hello I'm mounting a notebook board with the memory conector manufactured by CONCRAFT. We are facing some soldability problems with this conector because some ground leads don't solder on the pads. I tried 4 different brand of solder paste, tried to
Electronics Forum | Fri Jun 03 07:28:14 EDT 2011 | denz34
Hi there, I have questions regarding on SMT RF Shield dewetting & misalignment issue.. Q1) How to identify on good or bad RF shield that could contribute to dewetting? Q2) What counter measure that must be taken when facing dewetting issue? Q3) W
Electronics Forum | Wed Jul 20 03:10:45 EDT 2011 | umar
I have mount the 8 pcs SEVEN SEGMENT LEDS on the PWB side at SMT Process, after reflow the board test at customer side and facing some issues which is missing segment and also one segment founded dimmers compare to other segment. Data sheet of LEDs
Electronics Forum | Thu Aug 04 20:35:33 EDT 2011 | zywong
Hi All, I'm facing a problem is the PCBs are having delamination issue which after SMT reflow process & wave solder process. Dose anybody faced this issue before? The profile setting are correct settings. Some question i wonder: 1) Is that long time
