| ??? 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 |
| Topic | Author | Date |
| 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 |