After taking an ancient “Microsoft Internet Keyboard” apart, turns out it’s a rather simple mod to convert it to a wafer-thin, touch sensitive, transparent beast. Little bit of duck tape, and it’s perfect.
1. Remove the screws from the back of the keyboard.
2. Take the back off, and remove any more screws you see.
3. Peel the three plastic layers out.
4. Leaving them stacked in the order they are, put some tape at the edges to make sure they don’t slide.
5. Attach the board at the top with duck tape/anything (TIGHTLY), making sure EVERY contact is touching. (you may have to cut some of the plastic)
6. Enjoy your new wafer-thin, touch-sensitive keyboard .
How it works:
There are 3 plastic layers. The top and bottom ones hold the contacts that touch each other to formÃ‚ key-presses. The middle layer has holes where the keys use to be. If you leave the keyboard flat, the contacts are a quarter of a millimeter apart from each other, held there by the middle layer. However if you press any spot and the contactsÃ‚ actually touch, you get the equivalent of a keypress.