Electronics Forum | Fri Nov 09 08:45:31 EST 2007 | philkaz
I am in the R&D department at KIC. We have been making thermal profiling equipment for 20+ years. A standard circuit board is made from FR4 fiberglass. A typical solder reflow profile, whether leaded or unleaded, takes the board above the "glass t
Electronics Forum | Sat Oct 27 12:52:58 EDT 2007 | gregcr
We do very little wave soldering, maybe once a week. We have been running a Novastar Spartan 8S for years with very good results. I do wish we had the wider 12S for the wider boards, but it has only come up once in 7 years. I think there is a lot
Electronics Forum | Tue Oct 30 06:20:58 EDT 2007 | aj
Hi All, I would appreciate some advise with regard to Leadfree settings for a 5 zone reflow oven. I have a 35mm square BGA 672 pin on board. I am struggling to get the Delta T down to 2 degrees C . I have 5 Thermocuples drilled up from the bottom a
Electronics Forum | Tue Oct 30 10:30:24 EDT 2007 | wayne123
how many layer board is it? what kinda temperatures is your oven currently hitting. In our reflow oven I have been using a profile that is the same for the top and bottom at zone 1 111C zone 2 at 164C zone 3 at 161C zone 4 at 208C and zone 5 at 2
Electronics Forum | Thu Nov 01 17:24:20 EDT 2007 | jmelson
I think the Yamaha 84S is very similar to my Philips CSM84. head 3 cannot reach all the feeder locations. I believe feeder locations 1-3 on the front rail, and is it 41-43 on the back rail (the first 3 again) are out of range for the X axis to move
Electronics Forum | Fri Nov 02 08:10:40 EDT 2007 | floydf
Has anyone ever looked into the possibility for > laser marking 1812 size X7R ceramic chip > capacitors injecting sufficient energy to cause > cracking when voltage is applied? If so, what > were the findings? We are having failures of > caps
Electronics Forum | Mon Nov 05 19:37:32 EST 2007 | davef
You weren't specific about the frequency band were you're operating. So, let's pound a couple of stakes in the ground. * Conventional tin-lead plating of 200-300 �m is quite satisfactory for lower frequencies in the range of 2GHz. * At frequencies h
Electronics Forum | Mon Nov 05 00:51:58 EST 2007 | omidjuve
We have a problem with soldering of a 96 pin header connector(9001-11961c00l1a from kingmate) we use 3 different wave soldering but in all of the machines we have many short circuit between the pins . the wave soldering machines that we use is fr
Electronics Forum | Mon Nov 05 13:46:14 EST 2007 | ck_the_flip
That's where this website falls short. Sorry to b*tch, but there's lots of people who post here whose primary language is NOT english, and you know what they say... "a picture is worth a thousand words." Original Poster guy...try "Image Shack" to s
Electronics Forum | Thu Nov 08 16:02:28 EST 2007 | ck_the_flip
We've got lots of connectors at my place of employment like this. What I do is... I run these "slower than molasses in January" - we're talkin' 2 Ft/Min. conveyor speeds. Obviously this will have an effect on your thermal profile so compensate acco
