Electronics Forum | Wed Jul 18 08:50:35 EDT 2001 | Andy Gresko (Gresko Associates)
Aaron, You may want to consider a bead of hot melt glue similar to that used by hobbyists. There are various formulations with different melting temps. Andy
Electronics Forum | Thu Jul 26 01:50:17 EDT 2001 | mugen
We gave standing order, if its past the expiry date, ditch the can/jar, get a new can/jar.... Visual confirmation, for previously open & recycle can/jar, if you see seperation, of yellowish flux floating above, goolie grey much beneath, then ditch i
Electronics Forum | Thu Jul 19 14:50:10 EDT 2001 | tpeterson
I am looking for advice on placing 0603 parts with an old 4766. Also need a source for tooling and nozzles for the 0603 parts. Thanks, Tom
Electronics Forum | Thu Jul 19 20:08:33 EDT 2001 | Lex WW
Can anyone tell me the significance of the EPTSSOP (Exposed Pad Thin Shrink Small Outline Package)? From the drawing it appears to be just a 28-pin TSSOP. Are there any special sensitivities / requirements during PCB assembly? Please help.
Electronics Forum | Sat Jul 21 03:46:25 EDT 2001 | Lex WW
Dave, thank you for the pointer. The Amkor site covered most of the basics, from the package design to assembly guidelines. If you have any further tips on assembling this package, I'd much appreciate it. Thanks again..
Electronics Forum | Thu Jul 19 22:31:42 EDT 2001 | Pete
Received an info that the longer the oven the higher the throughput. What's the formula when calculating oven throughput ? say, i have the following: Oven Length : 266 cm Conveyor Speed: 29cm/min PCB Length: 29 cm Gap per Board: PCB Length x 0.5
Electronics Forum | Thu Jul 19 23:52:17 EDT 2001 | Victor
Load Factor = Board Length / (Board Length + Space) (you can get the maximum loading factor from the manufacturer, usually ranges from 0.5 to 0.9) Oven Throughput = (Conveyor Speed x Load Factor) / Length per Board
Electronics Forum | Fri Jul 20 06:38:08 EDT 2001 | Pro-Con
Hi Pete, That info is correct. See Victors response for throughput calculation. The reasoning is that the longer the heated section the faster the belt speed. The faster the belt speed, the higher the throughput. This is all based on your paste manu
Electronics Forum | Mon Jul 23 11:18:52 EDT 2001 | jseagle
If you don't want to use a sponge try the Hakko 599 Tip Cleaner. It uses a brass "sponge" (no H2O) to clean the tip.
Electronics Forum | Mon Jul 23 11:24:56 EDT 2001 | jseagle
If you don't want to use a sponge try the Hakko 599 Tip Cleaner. It uses a brass "sponge" (no H2O) to clean the tip. Also, the tips seem to last longer due to no water, which causes the tip and heater to rust.
