Electronics Forum | Mon Jul 28 14:30:22 EDT 2008 | grics
Take a look at this. Remember, these are only guidlines and can not replace any paste specs. As Real Chunks said, a profiler will be of HUGE help. We use this to determine what our top side temps are and to see if we have any problems with heat sen
Electronics Forum | Tue Feb 17 15:24:17 EST 2009 | glynnhamer
I know this is going to sound rather sad, but we have been using a Capton tape for years that contains silicone to mask large components as they go over the wave, as well as large plated holes on the pcb. It was handed down for years as accepted prac
Electronics Forum | Fri May 14 00:34:22 EDT 1999 | Mike D.
| I need some pics or documentation on how a finish soldered joint looks like for SMT component. I have various people who supposedly says has knowledge with High Temp says my joint could look better. The joint looks shiny and great except for a grai
Electronics Forum | Mon Feb 05 17:29:18 EST 2007 | flipit
I had problems with very simple timing circuits in the kilohertz range with leadfree NC solder pastes. Never saw the problem with lead NC solder paste. Run lead free no clean and clock was off. Run lead no clean and clock was right on.
Electronics Forum | Thu Nov 10 23:43:33 EST 2022 | sarason
Are you using the correct nozzle for 0402? Cant remember the number OTTOMH but 501 rings a bell. somewhere I have the table, it is in the Juki service manual IIRC. This would explain placing all others okay but 0402 is not very good , Senoirtech is c
Electronics Forum | Thu Jan 27 11:23:45 EST 2005 | russ
Well first off I wouldn't evaluate paste for a wave process. I would use solder bar instead. Flux - top side fillets and no shorting on the solder side, does it clean well after processing if using water soluble flux. How wide is the process win
Electronics Forum | Tue Dec 23 09:13:12 EST 2014 | jeff701
I'm in a manufacturing environment with a very high mix of boards, and some low-mid volume. A "large" production run might consist of 100 boards. Volume: There are numerous boards that have a volume of 1-3 pieces. There are a few boards with an annua
Electronics Forum | Thu Jun 28 09:54:06 EDT 2012 | mosborne1
Dave, They rework fine. All solder joints on the whole board look great especially for lead free sac305. Here are the reflow specs: SAC305 no clean solder paste – Kester EM907 Kic thermal profiling device – 50%process window green light profile. • M
Electronics Forum | Wed Dec 24 12:01:36 EST 2014 | emeto
Hi, I think that the jet printer is going to work for your process - the key with this device is to maintain it really good so you don't get any clogs. These are very fast devices.
Electronics Forum | Fri Jan 09 04:37:13 EST 2015 | jsolloway
Hi Jeff, We have both a MY500 (4 years) and a 600 (8 months) and were the first in the UK to have both. They work well for us, enough so that we no longer use a stencil printer. Like yourselves we are a high mix CEM we make about 500 different part
