Electronics Forum | Tue Dec 08 08:52:42 EST 2009 | cunningham
How do people prepare there solder paste for screen print? We currently remove them from the fridge and mix them in a 500g solder paste tub mixer to mix the flux and paste together we waste to much paste at the moment as we only use the tub for 1
Electronics Forum | Wed Dec 09 09:47:32 EST 2009 | dyoungquist
I am curious as to why you need to mix.... We use a 500g cartridge with air gun. Our process is remove the cartridge from the fridge, allow it to warm up to room temperature before inserting into air gun, then apply bead of paste to the stencil. N
Electronics Forum | Tue Apr 12 08:25:43 EDT 2005 | davef
Q1 Can anyone explain to me what is the clean and non clean solder? A1 The trend away from CFCs has lead many users to evaluate switching to no-clean soldering processes. The term "no-clean" is actually a common misnomer when used to describe a flux
Electronics Forum | Mon May 12 04:26:00 EDT 2014 | gazelle
Hello - I am looking for a source to supply low thermal EMF solder - can anyone provide pointers ? In the past a cadmium - lead alloy was used for this, but these are banned (RoHs) ... - the aim is to minimize thermo-couples on a very sensitive 4 lay
Electronics Forum | Tue May 13 08:51:21 EDT 2014 | gazelle
What is the product for? If you share more > information maybe there is another way of dealing > with the issue, like removal of the joints by a > different circuit design. > > sarason Hello - it is a highly stable reference source - exactly 10
Electronics Forum | Tue May 13 07:47:06 EDT 2014 | sarason
What is the product for? If you share more information maybe there is another way of dealing with the issue, like removal of the joints by a different circuit design. sarason
Electronics Forum | Tue May 13 18:32:52 EDT 2014 | gazelle
Hello Anvil - Thank you for the info ! I will contact Marlow ... Have a nice day ! Michel
Electronics Forum | Tue May 13 17:53:54 EDT 2014 | anvil1021
Hello Michel...this might be a bit of a battle finding the low thermal EMF material that you are looking for. The first one that comes to my mind is Bismuth Selenium Telluride, with either a nickel or cobalt doping agent. Silver went away from this
Electronics Forum | Wed Jul 27 09:58:05 EDT 2011 | davef
Pressure printing systems Conventional stencil printing techniques have fundamental limitations as regards paste handling: The volume of paste available for printing is limited, so frequent replenishment is necessary Paste is difficult to c
Electronics Forum | Thu Apr 05 12:27:12 EDT 2001 | davef
I concur with your second approach. A profile needs to be tailored to the design of the board, the components, and the solder paste. Your first approach seems to try to balance lower quality soldering with a lower process complexity.
