Dear Sean, I need to protect my application from the external environment, namely from the interference caused by a spark plug. It's a motorbike application. The spark at the oscilloscope looks like an impulse with 1uS rising edge and 20-25uS falling edge. With kind regards, Mario At 17.55 2011.11.06, you wrote: >Hi Mario, > >I believe that the thickness does matter to some degree. Also, it >greatly depends on what you are trying to do - prevent radiation FROM >your device, protect your device from external EM radiation, protect >your device from external low-frequency fields, etc. Can you describe >your application further? > >Shielding is a tough subject - it is difficult to get it right the >first time. I would suggest that you get your circuit working >properly, including the shielding aspects, before you pot it. > >Sean > > >On Sun, Nov 6, 2011 at 10:02 AM, Electron wrote: >> >> Hello, >> when shielding sensitive eletronics is the thickness of the metal=20 >shield important? >> >> As I'm gonna pot my small circuit into epoxy, I'm tempted to use=20 >cheap aluminium >> foil to shield the circuit (which seems necessary since I increased the = clock >> speed (PLLx16), and the environment is disturbed, at 1/16s speed it=20 >never crashed >> although all the EMI). >> >> Greets, >> Mario >> >> -- >> http://www.piclist.com PIC/SX FAQ & list archive >> View/change your membership options at >> http://mailman.mit.edu/mailman/listinfo/piclist >> >--=20 >http://www.piclist.com PIC/SX FAQ & list archive >View/change your membership options at >http://mailman.mit.edu/mailman/listinfo/piclist --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .