Electronics Forum | Fri Oct 22 11:53:53 EDT 2004 | C Lampron
Hi Christina, What would you be basing the yields off of? Is it solder defect, component placement, etc....? I have worked for a flex house for quite a few years. You are right. The Polyimide is very dimentionally unstable. (even more so on humid da
Electronics Forum | Tue Oct 26 14:04:59 EDT 2004 | Mike Arman
I've been an electronics hobbyist for many years (almost 50!, that's scary), and I'd like to expand my "skills set" to include being able to work with SMT components. I know I'll need some sort of magnifying viewer, 35x has been suggested. I'll also
Electronics Forum | Fri Nov 26 02:49:46 EST 2004 | Mike
Help! I have a small SMT section that produces low volume but high mix assemblies and, therefore, has over 300 devices. I am looking for a low cost flexible storage solution and believe I have an idea which I recall is available but I cannot find w
Electronics Forum | Wed Jan 12 07:22:10 EST 2005 | cyber_wolf
We seem to have an accountability issue when it comes to operators building defective product. Currently we are putting a piece of masking tape with the assembly #, work order, and operator initials on our black trays at the end of the reflow oven. I
Electronics Forum | Fri Mar 18 14:21:02 EST 2005 | Dreamsniper
We are producing control products for the Aerospace Industry both Commercial and Military. I have TQFP 100 fine Pitch in one of my PWB's Solder Side and have no misalignment problems or defects on my part after 2nd reflow. I control my reflow profile
Electronics Forum | Thu Apr 07 20:16:23 EDT 2005 | davef
Q1) Simple way to measure the PCB warpage A1) IPC-TM-650; Method 2.4.22 Bow & Twist Q2) What is the maximum warpage can the SMT machine allow the to accept and place the component without problem. A2) That depends. IPC-A-610 Acceptability of Elect
Electronics Forum | Thu Apr 21 04:16:17 EDT 2005 | Infinity
Dear all, I am doing some small business selling solder paste, chip capacitors and resistors in China. I am going to expand the existing SMT product line. Can you experts throw in some ideas? For example, what other products would you all think of
Electronics Forum | Tue May 17 16:46:52 EDT 2005 | davef
Most placement machine equipment suppliers offer software for line balancing. What's with Fuji? Fujitrax is a system developed in order to attain high levels of "progress management, quality management & traceability" over several SMT lines, throug
Electronics Forum | Wed Jul 27 17:01:14 EDT 2005 | Dreamsniper
Issue: At 60'C test PCB Fails. Operator did simulation. Use of Heat Gun to heat up the BGA to 60'C while PCB is powered and running. At 60'C BGA fails. When pressed system is back which means that something becomes open. Sent BGA for SEM and found t
Electronics Forum | Thu Aug 11 13:58:57 EDT 2005 | rcanten
Rotations are always confusing. My first suggestion would be to use the program polarity option on your Fuji equipment. This will allow you to keep the same rotational value in the programs if you have to move components between machines. Make sure y
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