Taped Traces
This is one of the quickest techniques for prototyping circuits, as well as an efficient and reliable way of making flat and flexible circuitry. Copper tape and conductive fabric tapes are relatively affordable and comes with or without conductive adhesive. When using copper tape with conductive adhesive, connections between separate pieces of tape can be made by overlapping individual pieces, but these connections aren’t the most reliable, especially over time. Soldering recommended.
ENSAD workshop poster >> http://hlt.media.mit.edu/workshops/ENSAD_2011/?page_id=16
Links
Microcontroller circuit with copper tape >> http://hlt.media.mit.edu/?p=1653
Simple Arduino audio samples >> http://hlt.media.mit.edu/?p=1619
How do copper tape and conductive fabric tapes, with or without conductive adhesive, offer affordable options for various applications? Regard Telkom University