Electronics Forum: placement (Page 111 of 385)

Insufficient Heel Fillets on plastic 240 pin QFPs

Electronics Forum | Sat Mar 24 16:34:06 EST 2001 | Stefan

Can you increase the placement force on your P&P machine? It should squeeze the solder paste to all sides including the heel.

Solid Solder Deposit

Electronics Forum | Tue Apr 24 10:37:45 EDT 2001 | caldon

A small SMT line? I have conections for a New screen printer (MPM), Essemtec Placement machine, and Reflow oven (Electrovert) for $100K Let me know how interested you are. Caldon W. Driscoll ACI USA 610-362-1200 cdriscoll@aciusa.org

BGA short at same spot after few time rework.

Electronics Forum | Wed Apr 25 23:51:13 EDT 2001 | spchua

Hi, Guy, please check the lamination of the PCB's; or the the BGA rework machine, some things like m/c levelling, and force placement head

BGA Reballing

Electronics Forum | Wed Jun 07 16:34:09 EDT 2000 | CJ Bonifas

Are there any other manual reballing systems aside from the one made by Hepco that use a vacuum method for ball placement?

White spots on PCB

Electronics Forum | Fri May 11 11:52:25 EDT 2001 | jagman

Does anyone know what would cause a PCB to develop white spots all over the board following parts placement and reflow? I need help!!

Can local fiducials improve BGA placement?

Electronics Forum | Wed Jun 06 15:45:37 EDT 2001 | gdstanton

Looking for any insight into whether the use of local fiducials will help or eliminate component recognition issues.

Can local fiducials improve BGA placement?

Electronics Forum | Wed Jun 06 16:04:02 EDT 2001 | pteerink

Greg, Need to give more to get more! What are the details? What are the problems you are seeing exactly? What type of part are you trying to place? What type of machine are you using? What type of vision recognition? What type of PCB finish? Phil

Cracked SMT Capacitors

Electronics Forum | Wed Jun 13 21:31:27 EDT 2001 | davef

Lotsa ways to bust caps. First: placement force; Second: thermal stress; Third: poor pad design. Forth: then, ummm maybe the cap supplier. Please describe the crack in more detail. Where does the crack start? Where does the crack go?

cpk measurement on fuji equipment

Electronics Forum | Tue Jul 03 09:57:25 EDT 2001 | johnw

Hi guys I am looking for any info on cpk values IE fcp6, fip2,fip3 What are the variables to consider for placement times and part sizes. Cheers

0402's for the first time!

Electronics Forum | Tue Jul 24 13:34:15 EDT 2001 | Steve Schrader

I have not had the "pleasure" of placing 0402's, but I've heard stories about feeder calibration being extra critical and possibly required prior to every run depending on your placement equipment. Maybe someone with actual experience can comment on


placement searches for Companies, Equipment, Machines, Suppliers & Information