Electronics Forum | Fri Jul 06 18:22:51 EDT 2001 | davef
Oooo, you are waving 0402. Tell us more about your wave and its set-up. Never seen this [knock on wood]. When is this skewing occurring, after placement or during cure? What�s the distribution? What happens when you slow-down yer placement rate?
Electronics Forum | Wed Oct 29 13:08:45 EST 2003 | swagner
Does anyone have any Siemens placement process optimization for picking and placing 0402's, especially the resistors. Any response is greatly appreciated.
Electronics Forum | Fri Dec 15 12:08:26 EST 2000 | Alex B.
i'm going to try placeing 0402 with a fuji IP2. Will i have any problems and are there any sugestions thanks in advance Alex B
Electronics Forum | Fri Jul 06 09:39:18 EDT 2001 | johnw
Hi guys I am having problems with skewed placement of 0402 devices I would like to add the board has raised pads and we are placing on glue. We are now printing the glue rather that dispensing with a GL5. have any of you guys had this pro
Electronics Forum | Fri Oct 31 12:54:26 EST 2003 | stefwitt
Absolutely, 0402�s are no problem and should not require any special modifications. However, you will find, that not all 0402�s are the same. I have users, who created 5 different GF-packages with different dimensions and light contrast. With small
Electronics Forum | Sat Jul 07 04:30:23 EDT 2001 | johnw
Dave this seems to be happining at placement altough when u run cal board the palcement is fine could the glue density be causing this
Electronics Forum | Fri Oct 31 11:32:32 EST 2003 | caldon
Brian- I think you are correct. To place 0402 components Siemens usess a "Shim" under the carrier tape. 0402 components can be used with a standard 8mm feeder with the shim Cal Also, Steffan still works on a fair amount of Siemens products and chec
Electronics Forum | Mon Jul 09 20:46:22 EDT 2001 | davef
Is the glue intended for printed SMD attach? 3 Are you following all the manufacturer�s glue shelf life recommendations? 4 Are you observing all the manufacturer�s glue working life guidelines? Finally, what level of skewing are we talking about?
Electronics Forum | Sat Jul 07 08:19:47 EDT 2001 | Stefan Witte
If your pads are raised as you mentioned, you will reach just the tip of your tiny glue dot, which may not hold the part in place. However, you should be using two glue dots on each side of your 0402 component. See under adherence force in paste a
Electronics Forum | Wed Jul 11 14:08:21 EDT 2001 | markhoch
Are you guys providing adequate board support during glue dispense and placement? I've had this same problem with 0603's that I was able to correct with adequate board support. Also, if you're using a Fuji glue machine, what are your temperature sett
