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???
11/08/05 15:22
Modified:
  11/08/05 15:46

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#103420 - I want the best money can buy, but do no
Responding to: ???'s previous message
I want the best money can buy, but do not want to pay for it.

Isn't that what this is about? I want 4 layer functionality from 2 layers!

Keep also in mind, that doing the artwork for such a construction can be more expensive than using a multilayerboard from the start. (This is only true if artworker's salary is higher than manufacturing costs of multilayer.)

I had a design where a lot of stuff and a common clock was to go on 2 small boards (total about 10 sq in) it cost me $5000+ for a professional layout of two 4 layer boards and I am glad I paid it.

I realize that $5000 for a layout is beyond the possible for many jobs, but if it is so, then do not start the job. It serves no purpose to start a job requiring 4 layers and professional layout with a $100 budget in the "hope" that less will do.

Erik

List of 16 messages in thread
TopicAuthorDate
two layer PCB            01/01/70 00:00      
   +5VDC also drives PhotoMOS relays            01/01/70 00:00      
   Solid ground plane is needed!            01/01/70 00:00      
      what i have done is            01/01/70 00:00      
         what you have done ...            01/01/70 00:00      
            Thermal relief's            01/01/70 00:00      
               You need a solid ground plane            01/01/70 00:00      
                  I want the best money can buy, but do no            01/01/70 00:00      
                  Thermal relief in PCB's            01/01/70 00:00      
                     An illustration...            01/01/70 00:00      
                        went through the design but            01/01/70 00:00      
                           Thermal reliefs were demonstrated            01/01/70 00:00      
                           who are you posting to????            01/01/70 00:00      
               thermal reliefs only ease soldering            01/01/70 00:00      
                  Resistance calculation for thrmal relief            01/01/70 00:00      
                     you better read .....            01/01/70 00:00      

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