Electronics Forum | Thu Jul 30 14:47:52 EDT 2015 | tombstonesmt
We have three C-740 machines. Parts can be bought directly from Asymtek in California.
Electronics Forum | Sun Jul 12 23:14:17 EDT 2015 | giulius58
Hy guys, someone know Asymtek C740? I want to overaul a part o his. thanks
Electronics Forum | Wed Mar 21 11:46:46 EDT 2012 | torch
thanks for the info :)
Electronics Forum | Wed Mar 21 10:37:02 EDT 2012 | torch
we are currently developing a 180 degs downhole tool and are right at the limits of our current solder paste, the tool has mostly surface mount parts and some fine pitch ic's. i was wondering if anyone had any recomendations for a suitable solder pas
Electronics Forum | Wed Mar 21 13:47:16 EDT 2012 | jax
To have an Operating Temp (Tool Classification) within your range, you might want to try. PB85 (Pb85/Sb10/Sn5) SMT is normally processed using Vapor Phase but can also be achieved with Nitrogen assisted Convection Reflow depending on size and compl
Electronics Forum | Wed Mar 21 13:16:11 EDT 2012 | grahamcooper22
What solder alloy are you using at the moment which is coming to the end of its limits ? Normally in general for safe operation of an alloy we don't like to recommend any operation temp that is higher then two thirds of the solders melt point, but th
Electronics Forum | Wed Mar 21 11:42:54 EDT 2012 | davef
Downhole solder suggestions, in order of preference are: * Kester Sn96.3Ag3.7. Most vendors do not stock straight tin-silver alloys, whose wallet is that fat? * SAC305 can usually be used in place of one of the copper-free tin-silver alloys in downho
Electronics Forum | Wed Apr 06 13:20:01 EDT 2005 | smtuser1234
Keep in mind if you are trying to add more pressure on a standard head you must use the following increments: 150, 250, 350 and 450. If you use 175 it will automatically go to 150. There are only four settings on a standard head. On a C4 Head you may
Electronics Forum | Tue Feb 08 15:05:22 EST 2005 | Keith Lengling
I have several memory devices that have 2% bismuth in the lead coating. Is this enough bismuth to be concerned over the formation of a low temperature SnPbBi alloy? What are the allowable limits for bismuth in an SnPb process for both SMT and through
Electronics Forum | Tue Feb 08 22:04:34 EST 2005 | davef
Tough to say. Can you accept the loss of strength of your solder connection if upto 2% of the solder is affected? * Lead and bismuth alloys can form a eutectic composition of Bi52Pb32Sn16 in the grain boundaries. * Melting point of the eutectic all
