Electronics Forum | Wed Dec 19 14:41:47 EST 2007 | gersla
Dear Steve. We are EMS company and we are getting wide range of components from our customers. Some of them came in trays, that can withstand up to 75 degree maximum. If someone will not pay attention to this the tray get damaged (if there is some Q
Electronics Forum | Tue Jun 17 04:46:59 EDT 2008 | fowlerchang
Vacuum baking oven can solve it. At 70 degree and 24 hours. And the vacuum is below than 10pa
Electronics Forum | Tue Jun 17 20:59:07 EDT 2008 | fowlerchang
And we have evaluated this process before 2001. And it is widely used in our company world wide. And we don't control the rate of the drop in pressure, because it is same as 125 degree at normal pressure condition.
Electronics Forum | Mon Jan 07 13:09:35 EST 2008 | stevek
As I told you, some carriers (trays) are limited > to 75 degree maximum, and from time to time > employees do not pay attention to this. This is > one of the reasons. The second reason is that 90 > degree still be problematic in a case of rebake
Electronics Forum | Thu Dec 20 22:02:47 EST 2007 | davef
We know of no such calculation. We just follow the standard.
Electronics Forum | Thu Dec 27 07:50:55 EST 2007 | davef
stacked die packaging
Electronics Forum | Thu Dec 27 16:42:29 EST 2007 | davef
Thank you Bubba
Electronics Forum | Wed Dec 19 14:02:18 EST 2007 | gersla
We decided to bake components in tray package at 70 Degree prior soldering. I am looking for suggestion regarding baking time for MSL3 components: Up to 1.4mm package thickness 1.4-2 mm thickness 2-4.5 mm thickness In JEDEC-033B this temperature is n
Electronics Forum | Wed Jun 25 12:48:51 EDT 2008 | sleech
I would love to see the documentation of the experiment that indicated that a 24-hour/70 degree C bakeiing cycle at 10Pa is more effetive than a 24-hour 125 deg C baking cycle at normal atmosphere. We have looked at the old Levey-Perlmann paper and f
Electronics Forum | Wed Dec 19 14:20:19 EST 2007 | slthomas
I'm inclined to suggest that you use a specified temperature, thus eliminating your situation. Why not use 90�C? I suppose you could calculate a duration for 70 based on the requirements at 40 and 90 if you really wanted to, but still I wonder why.
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