Computa Pen   (+8, -4)  [vote for, against]
Pen expressing semiconductive polymers

Jim decides one day to fill his 4 colour pen with 4 semiconductive polymers....

He then jots down a cray...

-- madness, Jul 06 2006

(?) Printable robots http://english.ohmy...&no=299900&rel_no=1
This is the same technology only with more dots per inch [madness, Jul 06 2006]

SMD pick-and-place pen SMD_20pick-and-place_20pen
Sketching with components. [BunsenHoneydew, Jul 08 2006]

so it's a method of laying semiconductor pathways using a pen? okay, why?
-- tcarson, Jul 06 2006

3 semiconductor polymers and one insulator, shirley?

If you can print circuit boards, you can certainly draw them. Can't for the life of me see why, but croissant for the Rube Goldbergedness.
-- DrCurry, Jul 06 2006

Why? There are loads of applications
education... it is a little cheaper than the alternative
design... it is a little more portable than circuit board design software

Only 3 semiconductors and an insulator... To be honest I would expect to have to have several different polymers (and so more than one pen)...
-- madness, Jul 06 2006

Very nice. Colour them as well.
-- dbmag9, Jul 06 2006

Jim? You mean Seymour.
-- Aq_Bi, Jul 07 2006

[+] for the link.
-- zigness, Jul 07 2006

I'm not sure you could create N-P junctions, for instance, just by drawing with different semiconductors. Don't you need the join to be precisely mated on an atomic scale? I like the idea, but I'd like you to address this before I vote.
-- spidermother, Jul 07 2006

I was about to answer [spidermother]'s question with a suggestion, but it seems better to spin this off into a new idea. I'll link and credit you.

[+] btw

You'll need an eraser too.
-- BunsenHoneydew, Jul 08 2006

random, halfbakery