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???
05/10/07 07:04
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#138961 - Junction
Responding to: ???'s previous message
Ap Charles said:
what junction do you refer here?

I thought the term originated with junction transistors, so the "junction" here referred to the semiconductor PN junction within the chip (die) itself?

After all, it is at this junction that the heat is developed, isn't it?

So, in the context of an IC, the "junction" would refer to the body of the silicon die - again, this is where the heat is actually developed...

Then the "Junction-to-Ambient" thermal resistance includes the attachment of the die to the package, and the resistance of the package material to the ambient air?

List of 23 messages in thread
TopicAuthorDate
what happen if ??            01/01/70 00:00      
   you will fry the chip usually            01/01/70 00:00      
      and            01/01/70 00:00      
   The chip will be destroyed.            01/01/70 00:00      
      this question should not be asked            01/01/70 00:00      
   a note: "the danger of DIL"            01/01/70 00:00      
   if it's a windowed EPROM...            01/01/70 00:00      
   Probably nothing...            01/01/70 00:00      
      junction and ambient            01/01/70 00:00      
         The worst example of backwards power            01/01/70 00:00      
            Off-topic, but...            01/01/70 00:00      
               Two ships passing in the night            01/01/70 00:00      
                  Yep            01/01/70 00:00      
                     John's Pizza            01/01/70 00:00      
                     small town and small world            01/01/70 00:00      
                        Excellent            01/01/70 00:00      
            Rocket Scientists do it too ...            01/01/70 00:00      
         Answers            01/01/70 00:00      
            Answers            01/01/70 00:00      
               Junction            01/01/70 00:00      
   Try it, we will also come to know wha will happen.            01/01/70 00:00      
      no, we wont            01/01/70 00:00      
   LM78L05 !            01/01/70 00:00      

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