Hi Tom,
We place a lot of 0402's with our CP 6/5's. Like thousands per board,
and defect levels are below 200 per millions of operations. We don't
let the machine run slow either, otherwise it would take forever to
build each board. The primary (only) defect we get with 0402's are
tombstones, and 0603's never tombstone. I have even successfully placed
16 mil pitch small SOIC's with the CP 6/5 without causing shorts
(although I don't think we could do this all the time at the less than
500 DPMO level). Needless to say, I am very impressed with the
capability of the CP 6. By the way, we are finding the primary
determinate for tombstones on 0402's happens at the screen printer with
paste alignment, paste volume, and paste release.
Thanks
Ryan Grant
Process Development Engineer
MCMS
(208) 898-1145
FAX (208) 898-2789
[log in to unmask]
>-----Original Message-----
>From: Vinit Verma [SMTP:[log in to unmask]]
>Sent: Monday, September 06, 1999 10:21 AM
>To: [log in to unmask]
>Subject: Re: [TN] Pick N Place Equipment
>
>Hi Tom,
>
>I have used Philips Emerald series for this purpose to full satisfaction.
>(no problems at all!!) Regarding Fuji CP6 or any other turret head machine
>for that instance (Panasert/Sanyo/Universal/TDK....) they CANNOT place
>0402. If you believe me and the reports in the industry they cannot even
>place 0603 with good confidence level. Reason--very simple. The centrifugal
>force throws the component before placing it on the PCB. I know users on
>Fuji in Singapore who have experience this problem.
>
>In case you need any more info pls. write back
>
>----------
>From: Thomas Han <[log in to unmask]>
>To: [log in to unmask]
>Subject: [TN] Pick N Place Equipment
>Date: Wednesday, September 01, 1999 1:39 AM
>
>Hi all,
>
>I need to place 0402 components. A lot of them. Any Zevatech 750/760
>and/or Philips Gem line(Topaz/Emerald) users out there with the experience
>in placing 0402 comps? How is Fuji CP6 in pickNplace of 0402s?
>
>Also, in component recognition, what is considered to be better, laser or
>line array camera?
>
>Thanks
>
>Tom
>
>##############################################################
>TechNet Mail List provided as a free service by IPC using LISTSERV 1.8c
>##############################################################
>To subscribe/unsubscribe, send a message to [log in to unmask] with following
>text in
>the body:
>To subscribe: SUBSCRIBE TECHNET <your full name>
>To unsubscribe: SIGNOFF TECHNET
>##############################################################
>Please visit IPC web site (http://www.ipc.org/html/forum.htm) for
>additional
>information.
>If you need assistance - contact Gayatri Sardeshpande at [log in to unmask] or
>847-509-9700 ext.5365
>##############################################################
>
>##############################################################
>TechNet Mail List provided as a free service by IPC using LISTSERV 1.8c
>##############################################################
>To subscribe/unsubscribe, send a message to [log in to unmask] with following
>text in
>the body:
>To subscribe: SUBSCRIBE TECHNET <your full name>
>To unsubscribe: SIGNOFF TECHNET
>##############################################################
>Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional
>information.
>If you need assistance - contact Gayatri Sardeshpande at [log in to unmask] or
>847-509-9700 ext.5365
>##############################################################
##############################################################
TechNet Mail List provided as a free service by IPC using LISTSERV 1.8c
##############################################################
To subscribe/unsubscribe, send a message to [log in to unmask] with following text in
the body:
To subscribe: SUBSCRIBE TECHNET <your full name>
To unsubscribe: SIGNOFF TECHNET
##############################################################
Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional
information.
If you need assistance - contact Gayatri Sardeshpande at [log in to unmask] or
847-509-9700 ext.5365
##############################################################
|
