Electronics Forum | Mon Jul 31 07:37:57 EDT 2023 | tommy_magyar
Hi Simon, Yes, red glue should help, assuming that it is being dispensed by a glue dispenser. For stencil printing I used yellow glue in the past (can't remember the brand). Your pick and place machine should be able to achieve on it's own 35 um
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 | 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 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 31 18:41:07 EDT 2023 | emeto
Chip-bonder glue(Loctite 3612 for example) will harden at lower temperature way before paste goes to liquidus stage, so it will hold the part in place.
Electronics Forum | Tue Aug 01 06:24:31 EDT 2023 | simonr
@srikant I'll check their process, meanwhile thanks for the reminder to put fiducials nearby. @MagyarT and Evtimov it sounds like it should work OK, the machine specs are 35um (3 sigma) so the results will be interesting, will post when I get some d
Electronics Forum | Tue Aug 01 08:19:10 EDT 2023 | shrikant_borkar
you are welcome, don't forget to set the search window (Fiducial Mark if 1D. then the search Window is set to 3D). Please reply once you have done.
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
