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Date:
September 04, 2009 03:33 PM
Author:
Martin
Subject: SMT DUAL PROCESS
Is it possible to Process Top & Bottom side PCBA simultaneously in One SMT Line. (An atrticle by Jagadeesh Rajagopalan, SMT Process consultant). Pls check this and suggest me whether it is possible? & What should be the Lead free Reflow Profile?
http://www.indyarocks.com/blogs/blog_visiterview_main.php?id=48986#blog48986
(http://www.smtnet.com/Forums/Index.cfm?CFApp=1&Message_ID=59791)
Date:
September 05, 2009 11:15 PM
Author:
Prasad
Subject: SMT DUAL PROCESS
We have successfully implemented this dual Process
You can use any printer that supports Board width 500mm.
SMT Dual Process Maximum PCB Width should be (500-20 / 2 ) = 240mm
Max (PCB width )Printer support = 500mm
Top width + Bottom width = 2
In between Distance = 20 mm
Optimize the topside Reflow Profile for the SMT Dual Process
(http://www.smtnet.com/Forums/Index.cfm?CFApp=1&Message_ID=59795)
Date:
October 04, 2009 10:37 AM
Author:
Martin
Subject: SMT DUAL PROCESS
Thanks for the info.
Attachments:
smtechindia.htm
(http://www.smtnet.com/Forums/Index.cfm?CFApp=1&Message_ID=60042)
Date:
October 05, 2009 04:41 AM
Author:
Pengliang
Subject: SMT DUAL PROCESS
our company process flow chart :
Loader -->Printer(DEK265)-->Gule -->SPI -->Mounting(NXT)-->AOI -->Reflow --> Bottom Loader --> Printer(DEK265)-->Gule -->SPI -->Mounting(NXT)-->AOI -->Reflow --> Touch up -->ICT -->BL -->FT -->Assembly
(http://www.smtnet.com/Forums/Index.cfm?CFApp=1&Message_ID=60045)
Date:
October 06, 2009 05:01 AM
Author:
Martin
Subject: SMT DUAL PROCESS
What is the PCB width?
Why can't you try screen printing in a pallet keeping TOp & Bot same time as mentioned in the article.?
Then you can built TOP & BOT by following Line confg
Loader -->Printer(DEK265)-->Gule -->SPI -->Mounting(NXT)-->AOI -->Reflow -->
(http://www.smtnet.com/Forums/Index.cfm?CFApp=1&Message_ID=60055)
Date:
November 01, 2009 10:34 AM
Author:
gmd
Subject: SMT DUAL PROCESS
If you have an even multiple of boards in a panel, then your layout can be altered to have 1 top 1 bottom in the x layout so that when you flip the panel the same layout is on the opposite side therefore requiring just one program.
(http://www.smtnet.com/Forums/Index.cfm?CFApp=1&Message_ID=60249)
