Electronics Forum: having (Page 821 of 3489)

Solder Ball Voltage Capacity

Electronics Forum | Tue Dec 19 20:01:41 EST 2000 | Lisa Murphy

Hi, I have recently been asked if I had any information on the voltage capacity of a solder ball. I asked around and did a web search but came up empty handed. Usually people are concerned with the current carrying capacity of bondwires, flip-chip

Re: N2 vs. Air Reflow Soldering

Electronics Forum | Fri Dec 15 11:21:45 EST 2000 | ralph

In my experiance, I have seen no difference in profiles between nitrogen and air reflows. What I understand is that the Nitrogen blanket allows for a greater solderability to gold plated pads. I also found that when dealing with fine pitch componen

Re: Reflow Profile Dry Out Stage

Electronics Forum | Wed Dec 13 18:41:33 EST 2000 | Steve A

Chris, I am not a chemist, but my best guess would be that you were able to remove some of the solvents from the paste flux without exhausting too much of the activators. The loss of solvents could have cut down on violent boiling (violent boiling

Re: Feeder tape splice jams

Electronics Forum | Wed Dec 13 08:28:37 EST 2000 | CAL

1)having the leader tape overlap and taped square is key. 2)making sure the Butt splice of the carrier tape is cut square and come together with no gaps 3) I would put a piece of yellow splice tape on the underside of the carrier tape to help hold th

Re: Glue Witness Pattern Verifiable by FUJI???

Electronics Forum | Wed Dec 06 13:47:15 EST 2000 | JAX

Nick and Dave, Did I miss the question? What does it matter what pattern the glue dots are in, whatever vision you use will have to read the individual dots anyway. If your glue machine is any good you should be able to get away with simply

Solder Paste Dispense problems

Electronics Forum | Thu Nov 30 15:18:54 EST 2000 | Rich Z

All, I have a reoccurring issue with the Alpha-Metals WS601, water-soluble paste in that the size 20 nozzle of the auger-type dispenser on my Camalot Gemini II clogs up rather frequently. Every few hours we are having to go in and clear out the nozz

Re: Begenner advise

Electronics Forum | Thu Nov 30 14:32:07 EST 2000 | Claude_Couture

Production of 50000, is this per year, per month, per week, what? As for your budget of 80000 Euro, that is no much to go on. For a basic SMT line, you need at least 1 paste printer, 1 placement machine and 1 reflow oven. If you have any through-hole

Re: Automatic lead placement system

Electronics Forum | Thu Nov 30 21:35:57 EST 2000 | Dave F

So, what's a clip lead? We've got two technologies 1 Surface mount 2 Pin through hole Major categories of pin through hole leads are: * Axial Lead Components have all of its lead wires extending from a component or module body along its long axis.

75ALS573DW

Electronics Forum | Mon Nov 20 10:22:18 EST 2000 | Sheng Jin

Hi: Many 75ALS573DW parts we reveived lately from one of our vender have some problem with its pin 2, an output pin of the tranciever ( probably resulting from EOS damage). Its impedance verse GND should be normally 3M ohm up. The parts we have measu

Re: CAD Translation Help Needed

Electronics Forum | Fri Nov 10 11:05:47 EST 2000 | al Lugo

Hi There are a couple of options that you have: 1) have you tried to open the file using note pad, is it an ascii text format? 2)if it is a ascii file then you can edit the file by just leaving the centroid information. 3)OR call Fuji America at 847.


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