Electronics Forum | Thu Jun 19 16:58:11 EDT 2003 | blundell
We can speak from experience, the Ersascope needs only 1.5mm to see along side a device and is the only system that looks low enough, the cheaper systems may be fine for normal packages but forget it for csp's, micro BGA's Also its the only system th
Electronics Forum | Fri Jun 20 13:04:37 EDT 2003 | Pete
Why all the fuss about BGA inspection?? If your reflow process is sound and your rework system is competent (i.e a PDR) they will be fine. Best advice I can offer is to srike a deal with an outside company who will inspect a small batch of your pro
Electronics Forum | Thu Jun 12 00:32:23 EDT 2003 | Henry
I would like to ask a question about SMT reflow process. I did 10 pcs samples but all is fail. The sample is double faces to have components (up-side has 4 pcs of BGA and down-side has 3 BGA and 2 QFP). And I saw some of BGA which is tilting in the P
Electronics Forum | Thu Jun 19 09:59:29 EDT 2003 | cnotebaert
I dont have Panasonic But I have KME wich is made by panasonic. I have an SP10P there are 2 secret screens i know of. if your system has a touch screen this may work if not sorry. When the system boots up swipe your finger across the top right corner
Electronics Forum | Mon Jun 16 13:57:48 EDT 2003 | James
Could anyone give me a basic profile temperature settings for a conceptronics 7 zone oven and speed? I have the first couple of zones ramped up to get to the soak temperatures. Is this correct or should I start out with low temperatures and graduall
Electronics Forum | Mon Jun 16 14:39:49 EDT 2003 | stepheno
The second one is typical. The important temperature is the temperature of the joint, not the setting of the oven. The oven setting are only important because they determine the temperature of the joint. If you set the oven to 150, that will be th
Electronics Forum | Tue Jun 24 09:42:52 EDT 2003 | stepheno
The temprature for the first zone should be less as the PCB entering the oven from the ambient shop floor temprature would suffer a thermal shock from a higher temp. Experience must be gained from profiling a board with thermocouples, otherwise you
Electronics Forum | Tue Jun 24 14:13:51 EDT 2003 | James
So which one is it? I am getting confused a bit because there are so many people doing it different ways. I know with higher temperatures at the begginning you have a chance of shocking the parts but if you dont have the higher temperatures at the
Electronics Forum | Wed Jun 25 12:11:43 EDT 2003 | stepheno
We have a 5 zone oven and were starting at 150 which brought it up too fast. Even with only a 5 zone starting at 140 we get the temp up to soaking temp fast enough. ( I think too fast actually) What kind of oven do you have anyways? And I can't
Electronics Forum | Wed Jun 25 12:20:03 EDT 2003 | russ
This may make it easy, Do you really need soak? Or can you just ramp to reflow. Most pastes that I am aware of perform just as well using the linear ramp as opposed to the ramp/soak /spike. Now, out of curiosity how are you attaching the thermocou
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