Email: Password: Remember Me | Create Account (Free)

Back to Subject List

Old thread has been locked -- no new posts accepted in this thread
???
10/12/05 17:25
Read: times


 
#102270 - Double sided etching
Responding to: ???'s previous message
Charles Bannister said:

Basically it like doing two single sided boards one at a time.


Hi Charles, these are my general queries:

1. How to home-make thru holes? Soldering a pin between top and bottom layer to simulate Plated thru hole? how do you do them?

2. What is the etchant do you use? FeCl2 or Ammonium persulphate?

3. Do you etch both sides simultaneously or single side at a time? Because, I usually etch single side by shaking it within a tray of Ferric Chloride etchant, with the copper side up. If I put upside down the pcb, then the toner gets knocked off and tracks get etched away.
Since double sided boards have toner on both sides, how do you do?

Cheers,
Vignesh



List of 25 messages in thread
TopicAuthorDate
Toner Transfer PCB's            01/01/70 00:00      
   Toner Transfer            01/01/70 00:00      
      Don't forget            01/01/70 00:00      
         I used acetone            01/01/70 00:00      
         clean copper side            01/01/70 00:00      
   File Edges of PCB top and bottom.            01/01/70 00:00      
      Type of paper used            01/01/70 00:00      
         PNP BLUE Type thermal paper.            01/01/70 00:00      
      Amazing            01/01/70 00:00      
         Double sided...            01/01/70 00:00      
         Alignment of Top and Bottom PCB Layers            01/01/70 00:00      
            Double sided etching            01/01/70 00:00      
               Double sided post !            01/01/70 00:00      
               Q&A double sided etching            01/01/70 00:00      
                  Bubble tank            01/01/70 00:00      
                     Making one with these guidelines            01/01/70 00:00      
                     addendum            01/01/70 00:00      
                     Like these...            01/01/70 00:00      
                     Something like this?            01/01/70 00:00      
                        Yes            01/01/70 00:00      
                  New methods            01/01/70 00:00      
         Art Paper            01/01/70 00:00      
            Blue sheet Vs Photographic paper            01/01/70 00:00      
            Timing and Tinning            01/01/70 00:00      
               Tin your self            01/01/70 00:00      

Back to Subject List