SMT DUAL PROCESS Views: 6149

SMT DUAL PROCESS		Martin	09/04/09
SMT DUAL PROCESS		Prasad	09/05/09
	SMT DUAL PROCESS	Martin	10/04/09
SMT DUAL PROCESS		Pengliang	10/05/09
	SMT DUAL PROCESS	Martin	10/06/09
SMT DUAL PROCESS		gmd	11/01/09

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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/distributed_forums/Index.cfm?CFApp=8&Message_ID=59791)

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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/distributed_forums/Index.cfm?CFApp=8&Message_ID=59795)

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Date: October 04, 2009 10:37 AM
Author: Martin  
Subject: SMT DUAL PROCESS


Thanks for the info.

Attachments: smtechindia.htm

(http://www.smtnet.com/distributed_forums/Index.cfm?CFApp=8&Message_ID=60042)

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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/distributed_forums/Index.cfm?CFApp=8&Message_ID=60045)

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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/distributed_forums/Index.cfm?CFApp=8&Message_ID=60055)

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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/distributed_forums/Index.cfm?CFApp=8&Message_ID=60249)