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???
07/20/09 13:15
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#167608 - ground vias
Responding to: ???'s previous message
Kai Klaas said:
Yes, you can connect the GND islands on top and bottom layers to the common ground plane via vias.


One more little question... I saw few graphic cards where gnd islands were used on outer layers short while ago. Corresponding gnd vias were ramdomly and in random count placed on the PCB from my opinion. Are there any rules or is it a product of some kind of design SW? I dont know what places I should put them on because the islands are in various shapes and somewhere they are oblong and out of the way. Thank you very much...

List of 29 messages in thread
TopicAuthorDate
PCB design - ground plate...            01/01/70 00:00      
   excuse...            01/01/70 00:00      
   You can use a local ground plane, but...            01/01/70 00:00      
      So, if I understand it well...            01/01/70 00:00      
         Yes, of course, but...            01/01/70 00:00      
            Yes, but...            01/01/70 00:00      
               No overlap            01/01/70 00:00      
               Version B, but without FB...            01/01/70 00:00      
                  so...            01/01/70 00:00      
                     PCB layout...            01/01/70 00:00      
                        Answers...            01/01/70 00:00      
                           EMC            01/01/70 00:00      
                              Hhm, I wouldn't do that...            01/01/70 00:00      
                                 AC power supply            01/01/70 00:00      
                           ground vias            01/01/70 00:00      
                              Locating of vias...            01/01/70 00:00      
                                 Thank you very much...            01/01/70 00:00      
                     Sideplating? Thermal vias?            01/01/70 00:00      
   Stackup            01/01/70 00:00      
      Not such a good idea            01/01/70 00:00      
         interrupted/split planes            01/01/70 00:00      
            Elaboration            01/01/70 00:00      
               Thank you...            01/01/70 00:00      
               Nice link, Rob!            01/01/70 00:00      
               Elaboration            01/01/70 00:00      
                  Explanation            01/01/70 00:00      
                     Elaboration            01/01/70 00:00      
            What you propose isn't well suited for 4 layer boards            01/01/70 00:00      
               Hi Kai            01/01/70 00:00      

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