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December 2013

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From:
"Stadem, Richard D." <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Stadem, Richard D.
Date:
Tue, 31 Dec 2013 16:20:38 +0000
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A dicing saw sounds like a good idea, but be sure it is grounded; consider the potential ESD aspect (FMEA).

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Ahmad, Syed
Sent: Tuesday, December 31, 2013 8:52 AM
To: [log in to unmask]
Subject: Re: [TN] super fine score cuts

At our center, we regularly use the dicing saw to cut all kind of materials including flex and rigid boards. Dicing blade suppliers supply appropriate blades to cut from a plastic sheet to a sapphire wafer. Our own initiative and our customers have challenged us in many ways over the years.

Syed Sajid Ahmad, Manager of Engineering Services Center for Nanoscale Science and Engineering (CNSE) NORTH DAKOTA STATE UNIVERSITY Research 2, 1805 NDSU Research Park, Fargo ND 58102 Phone 701 231 5880 Fax 701 231 5306 www.ndsu.edu/cnse

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Wayne Thayer
Sent: Tuesday, December 31, 2013 8:42 AM
To: [log in to unmask]
Subject: Re: [TN] super fine score cuts

If one side is flat, it should be pretty simple to get it done on a semiconductor dicing saw.  This will minimize stress to the components, and a typical kerf is less than 0.01".  They use visual targeting.  Service houses are available for doing this work.

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Stadem, Richard D.
Sent: Tuesday, December 31, 2013 8:57 AM
To: [log in to unmask]
Subject: Re: [TN] super fine score cuts

Use a Fiskars rolling paper cutter, like this one. Do not use the fixed blade unit, as it will tear the PWB:
http://www.messageinafold.com/trimmers.htm#rotarytrimmer


-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Guy Ramsey
Sent: Tuesday, December 31, 2013 7:31 AM
To: [log in to unmask]
Subject: [TN] super fine score cuts

Hi Steve,
We have a 3 inch square panel of 144 little boards. They have the finest little score cuts I have ever seen. 
Each one has a tiny embedded device. I am afraid to break them apart. 
Wondering if you can post the pictures, and if you or anyone on Technet has a good idea for how to singlulate the boards. 

Thanks,
Guy
 


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