Electronics Forum | Tue Jul 29 14:20:03 EDT 2008 | realchunks
Slight variations should have little impact on your product under normal conditions. All depends on your board.
Electronics Forum | Fri Jul 25 23:01:04 EDT 2008 | chip_flip
What paste are using? You should referance the manufactures time and temperature specification. Running lead-free in a 5 zone oven can be done with out a problem but it is not production friendly. If you are concerned with through put I would look fo
Electronics Forum | Sat Aug 02 08:06:11 EDT 2008 | pcbbuilders
Is there a limit to the time that most components can stay at temperatures around 130-200 deg c? if i slow the time, the first 4 zones will be at this temp for about 5 minutes in no lead process. i am concerned that some chips wont be rated at this t
Electronics Forum | Sat Jul 26 07:42:49 EDT 2008 | pcbbuilders
I am not very concerned about production time, but it is always a thought! Quality is more importnant of course. We have 2 different pastes, with almost identical requirements. We can get close to their profiles, but i am worried that i am spending
Electronics Forum | Mon Aug 04 09:30:16 EDT 2008 | grics
If you have concerns, you can look at the datasheet for each component or contact one of their application or materials engineers and find out what the components are rated for...process-wise. IE, how long can I be in the oven with this part, at what
Electronics Forum | Thu Aug 08 13:09:38 EDT 2013 | cyber_wolf
Hege, there is no actual calibration of the thermocouple itself. You can however verify that they read correctly. Heller sells an option on their reflow ovens specifically for this purpose. I hoping that someone chimes in here that is NADCAP certifi
Electronics Forum | Thu Sep 16 12:06:29 EDT 1999 | Scott S. Snider
| | | Hi, | | | | | | Can someone pls suggest to me the best reflow temperature setting | | | for a force air convection oven. The details is as follow. | | | 1) Heller 1700s | | | 2) 12 zone---6 top and 6 bot | | | 3) Solder paste --- Qualitek 691
Electronics Forum | Thu Oct 26 17:48:12 EDT 2000 | ptvianc
Hi: Generlly speaking, in a reactive mode, nitrogen blankets are used to improve the yield of a process that is marginal in terms of removing, and/or preventing the re-appearence of, oxides on copper features or component I/Os. That marginality can
Electronics Forum | Mon Oct 16 20:33:18 EDT 2000 | Dave F
MK: If you are getting good product with air, here�s what you should do: * Turn off the N2. * Sell that N2 cracker machine. * Pat yourself on the back. * Go out for beers. [Not any of that Canadian Fosters crap, tho][Did you know that Ozzies do
Electronics Forum | Fri Nov 06 02:55:10 EST 2015 | arct1c
Hi, we are looking for 1 or 2 new postreflow AOI machines to replace our old ones and possibly 1 prereflow AOI(we never had pre reflow before). In our company we run low volumes and high volumes. I have been looking at Viscom, Mirtec mostly, Cyberop
