At 09:35 PM 12/31/01 -0600, Dale E. Heltzer wrote the following: >Has there ever been a breakdown of the typical computer chip's composition? > >E.g. > >xx% silicon; xx%aluminum; xx%gold; xx%silver; xx%antimony ... > >I think it would be fun to know just what kind of ice we're all skating on
I haven't found a thing that gives the material composition of a chip per se. Most references just talk about silicon, the gallium arsenide (GaAs) layers, doping with other materials, aluminum and copper electrodes, etc. See IBM Micoelectronics 101 http://www-3.ibm.com/chips/bluelogic/manufacturing/makechip/makechip1.html Intel - How Chips are made http://www.intel.com/education/teachtech/learning/chips/ The USGS has a Commodity Statistics and Information series that gives information concerning the uses of materials. http://minerals.usgs.gov/minerals/pubs/commodity/ Take a look at Gallium for instance. I did find the breakdown for a typical PC. See table 4.1 http://www.ea.gov.au/industry/waste/ieu/computer-report/material.html -- Gerry Boyd ============= PCWorks Mailing List ================= Don't see your post? Check our posting guidelines & make sure you've followed proper posting procedures, http://pcworkers.com/rules.htm Contact list owner <[EMAIL PROTECTED]> Unsubscribing and other changes: http://pcworkers.com =====================================================
