3M tape with anisotropic z-axis electrical conductivity

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3M tape with anisotropic z-axis electrical conductivity

Post by arsalanb » Sun, Apr 17, 2022, 12:58 PM UTC

3M tape with anisotropic z-axis electrical conductivity
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Re: 3M tape with anisotropic z-axis electrical conductivity

Post by nomel » Mon, Apr 18, 2022, 10:46 PM UTC

For anyone looking for the interesting numbers:

    Insulation resistance: 3.4 x 1014 ohms/square

    Contact resistance:


Direct link to datasheet: https://multimedia.3m.com/mws/media/66235O/3m-electrically-c...


    
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      Re: 3M tape with anisotropic z-axis electrical conductivity
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      mensetmanusman
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      Post by mensetmanusman » Mon, Apr 18, 2022, 11:02 PM UTC
      
      This is sometimes used to connect rigid touch panel electrodes (on glass) to flex cables, bypasses having to do lots of soldering…
      
    
    
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      Re: 3M tape with anisotropic z-axis electrical conductivity
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      loxias
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      Post by loxias » Mon, Apr 18, 2022, 11:04 PM UTC
      
      The prowess of materials science in companies like 3M and Dupont never ceases to amaze me.  Just when I think I've seen it all with fiberglass tape and kapton tape...
      
    
    
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      Re: 3M tape with anisotropic z-axis electrical conductivity
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      smegsicle
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      Post by smegsicle » Mon, Apr 18, 2022, 11:07 PM UTC
      
      

  
    nomel wrote:
    post #2
  
  
    
    
    For anyone looking for the interesting numbers: Insulation resistance: 3.4 x 1014 ohms/square Contact resistance: Direct link to datasheet: https://multimedia.3m.com/mws/media/66235O/3m-electrically-c...
  


      
      so the 3.4e14 is resistance along the tape, and .3 is vertically, right?
      
    
    
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      Re: 3M tape with anisotropic z-axis electrical conductivity
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      AceJohnny2
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      Post by AceJohnny2 » Mon, Apr 18, 2022, 11:12 PM UTC
      
      What's Z-axis on this tape? is it thickness?
      
    
    
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      Re: 3M tape with anisotropic z-axis electrical conductivity
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      mensetmanusman
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      Post by mensetmanusman » Mon, Apr 18, 2022, 11:13 PM UTC
      
      

  
    smegsicle wrote:
    post #5
  
  
    

  
    nomel wrote:
    post #2
  
  
    
    
    For anyone looking for the interesting numbers: Insulation resistance: 3.4 x 1014 ohms/square Contact resistance: Direct link to datasheet: https://multimedia.3m.com/mws/media/66235O/3m-electrically-c...
  


    
    so the 3.4e14 is resistance along the tape, and .3 is vertically, right?
  


      
      Yes, in plane (XY), it is many orders of magnitude more resistive than out of plane (Z-axis).
      
    
    
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      Re: 3M tape with anisotropic z-axis electrical conductivity
      #8
    
    
      akubera
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      Post by akubera » Mon, Apr 18, 2022, 11:15 PM UTC
      
      

  
    AceJohnny2 wrote:
    post #6
  
  
    
    
    What's Z-axis on this tape? is it thickness?
  


      
      It's conductive only in the z-axis. So you can, for example, tape components to your circuitboard instead of having to solder tiny pieces.
      
    
    
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      Re: 3M tape with anisotropic z-axis electrical conductivity
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      raldi
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      Post by raldi » Mon, Apr 18, 2022, 11:19 PM UTC
      
      What does that mean?
      
    
    
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      Re: 3M tape with anisotropic z-axis electrical conductivity
      #10
    
    
      crmd
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      Post by crmd » Mon, Apr 18, 2022, 11:20 PM UTC
      
      

  
    nomel wrote:
    post #2
  
  
    
    
    For anyone looking for the interesting numbers: Insulation resistance: 3.4 x 1014 ohms/square Contact resistance: Direct link to datasheet: https://multimedia.3m.com/mws/media/66235O/3m-electrically-c...
  


      
      Thanks. This is exactly what I was looking for, and it was annoying this wasn’t in the specification or  details section.
      
    
    
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