Electronics Forum | Tue Aug 22 14:59:55 EDT 2000 | Mike Naddra
What does the reflow profile look like , the question I had was surrounding the higher reflow temperature and the max temperature that lowest thermal mass components will see. Some other questions that I had were surrounding the components , what of
Electronics Forum | Tue Aug 22 16:02:07 EDT 2000 | Dr. Ning-Cheng Lee
If the thermal mass of the products is small, a tent-shaped profile is recommended, with peak temperature around 240C. The hottest spot on board should be less than 250C. However, if the thermal mass of the product is large, such as a large server PC
Electronics Forum | Tue Sep 13 07:00:28 EDT 2016 | awhite
Thanks for the reply. When you hit start on the printer, you can see it send the "start cycle (SMEMA)" signal, and it immediately goes to "awaiting board from upstream." This tells me that the printer knows a signal has definitely been sent and rece
Electronics Forum | Tue Sep 11 12:56:03 EDT 2007 | jsloot
Can anyone give me any information on the longivity of titanium insert wave pallets. What I am looking for is the integrity of thin walls over several hundred cycles and the interface between the insert and the durostone material.
Electronics Forum | Fri Jan 27 09:48:26 EST 2006 | patrickbruneel
GS UPS are exempt for 2 reasons: A. Lead in solders for servers, storage and storage array systems, network infrastructure equipment for switching, signaling, transmission as well as network management for telecommunications. B. The primary functi
Electronics Forum | Mon Sep 12 09:26:00 EDT 2016 | awhite
Our MPM Up2000 HIE is having a communication problem with any upstream machine we place in front of it...i.e. conveyor, board loader, etc. It all started when we removed a conveyor from inbetween it and a board loader, and hooked those machines up di
Electronics Forum | Mon May 05 22:24:17 EDT 2003 | jlipton
We are investigating a system, using 2-D matrix code, that will identify and track every PCB throughout our factory, starting from bare board. As a low-medium volume manufacturer, would labels or laser marking be more cost-effective? How difficult is
Electronics Forum | Tue Sep 20 15:00:26 EDT 2016 | awhite
Got it!!!!! On the main Operator Screen for the MPM UP2000, and under configuration (when logged-in under maintenance), it gives you ONLY the settings that the machine is set to....there are no drop-downs or options available to choose from. Very fr
Electronics Forum | Sat Feb 06 16:42:18 EST 2021 | sg7914
Respected all; I am currently a student at RIT and working towards my master's in Manufacturing and Mechanical System Integration with a specialization in Electronics Manufacturing. I came across an interesting topic regarding the tooling and fixt
Electronics Forum | Sun Sep 08 15:41:30 EDT 2013 | rodcr
I read an article about signal integrity losses and ENIG applied to all of the traces on the board. Doesn't solder mask protect the traces? Why would you need ENIG on the entire board?
