Electronics Forum | Mon Mar 29 16:33:29 EDT 2010 | mikesewell
SAC 305 liquidus is 219 C. A hybrid profile is often recommended with a peak of 230 C (reflow the SAC and not kill the Pb parts) with an extended liquidus of 60-90 sec to get good alloy diffusion. Or if the design (parts & pwb) can tolerate it go P
Electronics Forum | Tue Mar 30 12:36:18 EDT 2010 | muarty
Hi Rodrigo, Within your placement program, what do you have set for your Main Mark and Sub Marks for each placement John
Electronics Forum | Tue Mar 30 10:48:52 EDT 2010 | thanh
i had it placing with nozzle that placing 0805 or 1206 and teached where's flat surface is for picking up , and i have my XY moving slowing down to 50% . just wondering what kind of machines do you have??
Electronics Forum | Tue Mar 30 11:18:38 EDT 2010 | davef
Where on the component are you picking? Picking on: * Lens is probably not a good idea * Next to the lens is probably better
Electronics Forum | Wed Mar 31 13:56:16 EDT 2010 | cusackmusic
I think we aim for the DOT on the flat. If you get too close to the lens, the taper on the nozzle hits the lens, and you don't get enough vacuum. There is not much room for error on pickup.
Electronics Forum | Mon Apr 12 15:41:13 EDT 2010 | cusackmusic
Depends on what you mean by full speed. We run them Full Speed on our Quad IIC, and IVC. But those aren't as fast as newer machines. I assume there is a speed at which the vacuum just won't be able to hold on anymore.
Electronics Forum | Wed May 11 15:04:16 EDT 2011 | thejedeye
LED sticking in nozzles are such a problem, seem everyone has issues with this from time to time. Don't want to advertise who's nozzles worked best but will answer you back if you drop me an email.
Electronics Forum | Tue Mar 30 19:39:15 EDT 2010 | dekhead
You don't say what type of / source of cleaning paper... there are many and some are certainly more prone to leave fibers behind.
Electronics Forum | Mon Apr 05 10:26:10 EDT 2010 | swag
We have used different suppliers including direct from MpM and from a couple other sources who sell comsumables. Do you have a recommendation?
Electronics Forum | Tue Apr 06 00:18:07 EDT 2010 | dekhead
I have always had success using the Dupont sontara material... many suppliers offer. Recently have two customers of mine who swear by the results using the Aquavator for lint free and cleaning result without solvents. http://www.dekhead.com
