| ??? 12/31/05 17:20 Modified: 12/31/05 17:21 Read: times |
#106293 - Special ink Responding to: ???'s previous message |
Vignesh said:
I was using this etch resistant ink method for signal traces, sometimes, the tracks get etched away Yes, this happened to me too. Because of that I began to use rather expensive "Dalo 2M Professional". It's a free flowing but thick ink, giving thick and robust surfaces. Never disappeared while etching. By the way, I used Ammonium_Persulfat for the etching, rather low temperatures and much movement of the board. Vignesh said:
The biggest challenge is the alignment of top and bottom layers: even an 1mm offset will completely ruin the board. Make two little holes through the foils and the PCB... I had drilled all the holes for the pins first, then I draw the whole circuit onto both layers. Kai |
| Topic | Author | Date |
| Second layer of PCBs | 01/01/70 00:00 | |
| hmmm | 01/01/70 00:00 | |
| Another idea... | 01/01/70 00:00 | |
| A very good idea! | 01/01/70 00:00 | |
| A clarification | 01/01/70 00:00 | |
| This way? | 01/01/70 00:00 | |
| No problem | 01/01/70 00:00 | |
| better... | 01/01/70 00:00 | |
| That's the solution | 01/01/70 00:00 | |
| Farady Cage ? | 01/01/70 00:00 | |
| Oops! | 01/01/70 00:00 | |
| Single double-sided PCB ! | 01/01/70 00:00 | |
| Depends | 01/01/70 00:00 | |
| Layer | 01/01/70 00:00 | |
| wow 12 replys in 1 hour !// | 01/01/70 00:00 | |
| Yeah! | 01/01/70 00:00 | |
| Close and solid ground plane | 01/01/70 00:00 | |
| Thank you! | 01/01/70 00:00 | |
| Some pics | 01/01/70 00:00 | |
| Your Supply tracks are too thin | 01/01/70 00:00 | |
| Thickness | 01/01/70 00:00 | |
| Decoupling caps? | 01/01/70 00:00 | |
| Top or botttom | 01/01/70 00:00 | |
| Draw it | 01/01/70 00:00 | |
| Ink != Etch resist | 01/01/70 00:00 | |
| Indeed | 01/01/70 00:00 | |
| Time consuming | 01/01/70 00:00 | |
| Special ink | 01/01/70 00:00 | |
| I would... | 01/01/70 00:00 | |
| is it for? | 01/01/70 00:00 | |
| Is because... | 01/01/70 00:00 | |
| Cant get anything better! | 01/01/70 00:00 | |
| It's easy to find all my posts... | 01/01/70 00:00 | |
| DIP => Bottom Routing, Top Plane | 01/01/70 00:00 | |
| Great! | 01/01/70 00:00 | |
| Drilling is easier | 01/01/70 00:00 | |
| Another doubt | 01/01/70 00:00 | |
| Remedies | 01/01/70 00:00 | |
| My idea | 01/01/70 00:00 | |
| Not a good idea for fast digital circuit | 01/01/70 00:00 | |
| Try SMD | 01/01/70 00:00 | |
| A new lowcost direct PCB printer ? | 01/01/70 00:00 | |
| SMD | 01/01/70 00:00 | |
| The key to success is flux | 01/01/70 00:00 | |
| Interesting link | 01/01/70 00:00 | |
| Kai, you are right | 01/01/70 00:00 | |
Highly interesting article! | 01/01/70 00:00 | |
| Soldering | 01/01/70 00:00 | |
| For your views.. | 01/01/70 00:00 | |
| Without schematic... | 01/01/70 00:00 | |
| Schematic | 01/01/70 00:00 |