Not circuit diagrams. Any old pen can do that. No, the pen is a rollerball with silver ink that can actually draw real, working circuits. The ink dries to leave silver trails […] ...

Draw Circuits 17-piece maker kit (Circuit Scribe) is a fun way to learn more about circuits and how to use them in different ways. It’s fun making them using a pen with conductive ink.

Forget printing circuits: how about drawing ’em instead? At least, that’s what you can do with this rollerball, which spews out conductive silver ink to let you doodle circuits all day long.

But, the challenge was creating drawings of circuits that would actually work. It is practically impossible to tell from a drawing if the real thing will work or will it fall flat on its face.

Big Blue is tinkering with a new material that could drastically slash the costs of “drawing” circuits on semiconductors, and the stuff is a close relative to tennis shoe glue.

IBM is tinkering with a new material that could drastically slash the costs of "drawing" circuits on semiconductors, and the stuff is a close relative to tennis shoe glue. At the International ...