Electronics Forum | Fri Jul 06 04:55:59 EDT 2012 | ccgooi
I have fabricated a artwork of stencil on a mylar and make comparison on PCB and Stencil in order to confirm if there is any PCB stretching at both end. The results are comparable for both stencil and PCB without any stretching . So,I assumed that th
Electronics Forum | Mon Jul 18 03:55:39 EDT 2005 | chocw
I am looking for a specification required for printing 01005 size chip. Does anybody know the solder paste deposition accuracy and alignment accuracy required for printing 01005 chip? And currently which machine can print 01005? If somebody knows
Electronics Forum | Tue Jul 19 19:10:18 EDT 2005 | chocw
Most of the major chip mounter makers claim that they do have a capability of handling 01005. Like Samsung, Yamaha, Assembleon, Panasonic, etc. But I've never found any screen printer company yet. What is the specification required for selecting scre
Electronics Forum | Tue Jul 19 00:24:22 EDT 2005 | fastek
Off topic a bit but I wonder what machines out there today are actually capable of placing 01005 components and whether it is a big deal to go down to 01005 from 0201 or 0402.
Electronics Forum | Tue Jul 19 02:24:48 EDT 2005 | Vinit Verma
Assembleon A Series does it. Sony F-130 and Fuji XP143 both claim it possible on these machines. But I too wonder if there is a real need going down to 01005 from 0201 at least!
Electronics Forum | Tue Jul 19 21:48:21 EDT 2005 | grantp
Hi, Yes, and then how do you design a stencil that paste releases reliably. Do people put lots of 01005 components on the board, or just the minimum required to do a tough job? Regards, Grant
Electronics Forum | Thu Jul 21 03:59:19 EDT 2005 | Rob
Nope, credit where credit's due - I'll let you have that one (Well, I do have Firday off, & I'm in a good mood!).
Electronics Forum | Mon Jul 18 21:00:22 EDT 2005 | grantp
Hi, Yes, I would love to know this as well. Our machines can handle the component sizes, but how do the printers handle it? We have a DEK, and that's a good printer, but how do you design the stencil to reliably paste release on components this smal
Electronics Forum | Wed Jul 20 16:51:03 EDT 2005 | pjc
There is a spec I read that states +/- 0.001" (0.025mm) print deposition accuracy and repeatability is more than adequate for 0201-chip printing. I don't think any print studies where done for 01005 chips yet. There are several other factors besides
Electronics Forum | Thu Jul 21 02:54:10 EDT 2005 | Base
(... so hard to resist... Rob is probably going to kick my derriere for this post...) So was Assembleon... They first placed a very large QFP (think it was 208) and then placed a whole bunch of 01005's in between the leads. And to top it off they al
