Electronics Forum | Thu Apr 25 09:27:03 EDT 2002 | fmonette
Michael, This concern is well covered in J-STD-033, section 8.6 Board Rework. "...If the component temperature exceeds 200C, the board may require a bakeout prior to rework..." In other words, you only need to worry about moisture related defects w
Electronics Forum | Mon Apr 19 16:07:32 EDT 2021 | sacd
Hello. When I am originating machine Juki KE20060RL Error On Initializing appear Z4-axis. The position error exceeded the limit. I am check and diagnosed that motor Z don't move at all. Attached axis monitor shows the current state of the axis . Coul
Electronics Forum | Tue May 26 11:13:49 EDT 2009 | xinxi
Is the components on the top or on the bottom of the pcb? Have you checked whether the temperature on pcb are too high when it pass through SW that it exceeds the limit that the components can take? Do check with the component manufacture for the te
Electronics Forum | Sat Apr 30 11:34:23 EDT 2016 | huanyupcb
High Mix,Low Volume,Short Delivery PCB Supplier. 1.The world top 500 PCB supplier.( Samsung DELL Alcatel-Lucent Huawei Lenovo FOXCONN ASUS etc ) 2.Over 15+ Years of PCB Expertise. 3.Provided "PCB & Assembly One-stop shop"service,No MOQ. 4.ISO9001 I
Electronics Forum | Fri Oct 18 15:29:16 EDT 2019 | kylehunter
Hi all. We are currently trying to build a downstream bypass to have our final conveyor feed into our oven, which doesn't have a SMEMA interface. Right now we have to manually connect the two downstream ready pins by hand. I have a good idea of how I
Electronics Forum | Sat Dec 02 12:03:40 EST 2000 | Jamey Butteris
If you put a 6v battery on a 12v solar panel, it will charge the battery. It will also overcharge the battery and may damage the plates if you leave it on too long. The 'float' voltage for a lead acid battery (6v) should not exceed 7.2 volts for exte
Electronics Forum | Fri Jun 15 13:06:15 EDT 2001 | CPI
I Agree with Dave, Check spec on cap some devices have temp constraints (can exceed x degrees for more than x time or can not exceed a certain ramp rate). Check that then go through the rest of the process chances are its not your machine if no other
Electronics Forum | Mon Feb 25 15:09:06 EST 2002 | jax
Kelvin, You can find the Standard acceptable levels and testing procedures from IPC. Here's a little advice from the fellas' over at PCFAB: As a guideline, we recommend that for assemblies processed with low-solids flux technology and that are not cl
Electronics Forum | Tue Jun 10 11:07:33 EDT 2003 | fmonette
Another important element to consider is the impact of ambient temperature and humidity on Moisture Sensitive Components. The majority of plastic encapsulated ICs are classified as moisture-sensitive devices (MSD). This means that they are qualifie
Electronics Forum | Wed Apr 21 17:27:27 EDT 2004 | russ
We always use the regular production reflow profile when we use this method. Since you don't want to do that, All that is required is to ramp the part up to temp to get the balls to melt. If you don't exceed 2C per sec. in a ramp you will be fine.
