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Vignesh Prasad
10/12/05 11:25
Read: 805 times
Bangalore
India


 
#102270 - Double sided etching
Responding to: Charles Bannister'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      Rob Vassar      09/26/05 14:03      
   Toner Transfer      Farshid Jafari Harandi      09/26/05 14:20      
      Don't forget      Jon Ledbetter      09/26/05 14:36      
         I used acetone      Rob Vassar      09/26/05 15:05      
         clean copper side      Farshid Jafari Harandi      09/26/05 20:18      
   File Edges of PCB top and bottom.      Charles Bannister      09/27/05 00:33      
      Type of paper used      Ashwin Nayak      10/07/05 10:53      
         PNP BLUE Type thermal paper.      Charles Bannister      10/07/05 12:28      
      Amazing      Vignesh Prasad      10/11/05 08:41      
         Double sided...      Robert Perez      10/11/05 14:34      
         Alignment of Top and Bottom PCB Layers      Charles Bannister      10/11/05 14:35      
            Double sided etching      Vignesh Prasad      10/12/05 11:25      
               Double sided post !      Vignesh Prasad      10/31/05 08:32      
               Q&A double sided etching      Charles Bannister      10/31/05 19:02      
                  Bubble tank        Steve M. Taylor      11/01/05 03:13      
                     Making one with these guidelines      Abhishek Singh      11/01/05 07:43      
                     addendum      Steve M. Taylor      11/01/05 10:16      
                     Like these...      Jon Ledbetter      11/01/05 10:26      
                     Something like this?      Vignesh Prasad      11/01/05 21:46      
                        Yes      Steve M. Taylor      11/02/05 09:41      
                  New methods      Vignesh Prasad      11/01/05 21:49      
         Art Paper      Ashwin Nayak      10/30/05 11:49      
            Blue sheet Vs Photographic paper      Charles Bannister      10/30/05 14:52      
            Timing and Tinning      Vignesh Prasad      10/31/05 08:43      
               Tin your self      Abhishek Singh      10/31/05 21:03      

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