Electronics Forum | Mon Nov 12 13:04:35 EST 2001 | slthomas
We've got a problem with a fine pitch board that has about .005" registration error at each end (towards the center of the board) when it's printed. Apparently we've got a case of board stretch generated at the fab shop. I still have to do some mea
Electronics Forum | Mon Nov 12 16:14:47 EST 2001 | davef
Yes!!! How can we assemble boards with 20 pitch when we allow 0.008� error to the master art? Excellent question!!! IPC-D-300G has nothing to do with assembler requirements. It is written by and for fabricators, so that they can be comfortable.
Electronics Forum | Mon Nov 12 17:12:40 EST 2001 | slthomas
Thanks, Dave. Three courtesy cheers for specifications written to reflect the capabilities of the part suppliers, even if they fail to meet the purchaser's (not unreasonable) process req'ts. In the meantime, I'm sure my stencil guy would be more
Electronics Forum | Tue Nov 13 09:25:42 EST 2001 | davef
Maybe. While it doesn't help with your current problem, there is nothing that says that you cannot impose requirements in your purchase order that are stricter than D-300.
Electronics Forum | Wed Feb 01 11:36:03 EST 2006 | Bruno Lalonde
Hello I�m looking for a ultrasonic stencil cleaner, maybe you guys can give me good and inexpensive brand. I�m also concerned about the waste, how do we treat it for the respect of the environment. Thanks
Electronics Forum | Wed Feb 01 11:48:55 EST 2006 | russ
I would recopmmend contacting Aqueous technologies or Smart Sonic along with other Mfgrs. They will be best suited to evaluate your needs.
Electronics Forum | Wed Feb 01 14:19:27 EST 2006 | samir
Chunks, Here is some good information from the archives regarding Ultrasonic Systems: http://www.smtnet.com//forums/index.cfm?fuseaction=view_thread&CFApp=1&Thread_ID=3026&#Message12326
Electronics Forum | Wed Feb 01 15:36:35 EST 2006 | Darnell
Maybe at dat homie�s shop, they opted ta use Semco ridetridges instead of jars, and they didn�t gots a process put in place ta recycle da old solder paste. - aww yea foo.
Electronics Forum | Wed Feb 01 13:32:18 EST 2006 | samir
Whatever you do, don't get a cleaner where they "lock" you into using their Saponifier! I remember at my previous company, getting that monstrosity running was my 1st project - the boob who bought it washed his hands of it and assigned it to me.....
Electronics Forum | Wed Feb 01 16:59:43 EST 2006 | Chunks
Hi Darnell! How's it hangin bra. Good point about the cartridges. I think "the man" invented them. Anyway, you can still scoop the excess into an empty container..... Most paste companies will take your old paste back for free too. Aw-ight, w
