Electronics Forum | Wed Dec 15 18:09:10 EST 2004 | DasonC
Jedec J-STD-033A for components. For the Fab and assy, you can check IPC-PE-740, Para. 1.5.4
Electronics Forum | Mon May 02 18:40:50 EDT 2005 | russ
I don't know what machine type you have or what the nozzles look like but we use a standard nozzle with an I.D. of either .8 or 1.5mm. We rotate and pick up the part somewhat slowly.
Electronics Forum | Thu Dec 08 09:47:46 EST 2005 | slthomas
I'm with Grant on the .005" foil thickness. The key is to keep your aspect ratio (aperture width/foil thickness) over 1.5, laser cut, and I like trapezoidal aps. too.
Electronics Forum | Thu Dec 15 18:53:56 EST 2005 | aswsteven
Hi Guys I am new to SMT Line Currently having a lot of paste problem, have to change every 1.5 day after use. Please advice.
Electronics Forum | Thu Dec 15 21:02:30 EST 2005 | aswsteven
Hi I mean once I open the jar and load into the print machine, paste can use about 1.5 day and start giving a lot of problem. I want to know how long it can be use in print machine.Please advise.
Electronics Forum | Mon Dec 19 12:18:41 EST 2005 | Amol Kane
funding from who?. we are dealing with the same thing here. the solder paste cost is roughly 1.5 times SnPb, and the cost of bar solder is thru the roof
Electronics Forum | Tue Feb 07 16:45:32 EST 2006 | Mike
Can someone point out what sort of defects at the joint I can expect if solder is above liquidus for 3-4 minutes rather than the typical 1 - 1.5 minutes. Voids? Grainy joints? Poor wetting? Thanks
Electronics Forum | Tue Aug 01 11:30:11 EDT 2006 | heyitech
We need to sold compnents on the copper board(1.5mm thick)by using lead free solder paste. please give me some suggestion if you have experiences on this issue. thank and regards
Electronics Forum | Sat Nov 18 08:42:11 EST 2006 | davef
Bow & twist: IPC-A-600. Acceptability of Printed Boards 1.5%; Goal 0.005" per inch; Practicle 0.007" per inch
Electronics Forum | Wed Jan 24 20:23:49 EST 2007 | seth
Is Total Force setting necessary, and is it depend on the board thicknes? Is it making any different as far as printing goes? My boss have it set on 8.00 for all 4 MPM, and we are running different type of PCB everyday. Some of the boards thicknes is
.gif)
