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SVTC HOME > HIGH-TECH PRODUCTION > COMPOSITION OF A DESKTOP PC

Composition of a personal desktop computer
based on a typical desktop computer, weighting ~70lbs
NameContent 
(% of total weight)
Recycling EfficiencyUse/Location
plastics22.990720%includes organics, oxides other than silica
lead6.29885%metal joining, radiation shield/CRT, PWB
aluminum14.172380%structural, conductivity/housing, CRT, PWB, connectors
germanium0.00160%semiconductor/PWB
gallium0.00130%semiconductor/PWB
iron20.471280%structural, magnetivity/(steel) housing,CRT, PWB
tin1.007870%metal joining/PWB, CRT
copper6.928790%conductivity/CRT, PWB, connectors
barium0.03150%getter in vacuum tube/CRT
nickel0.850380%structural, magnetivity/(steel) housing,CRT, PWB
zinc2.204660%battery, phosphor emitter/PWB, CRT
tantalum0.01570%capacitors/PWB, power supply
indium0.001660%transistor, rectifiers/PWB
vanadium0.00020%red phosphor emitter/CRT
terbium00%green phosphor activator, dopant/CRT,PWB
beryllium0.01570%thermal conductivity/PWB, connectors
gold 0.001699%connectivity, conductivity/PWB, connectors
europium0.00020%phosphor activator/PWB
titanium0.01570%pigment, alloying agent/(aluminum) housing
ruthenium0.001680%resistive circuit/PWB
cobalt0.015785%structural, magnetivity/(steel) housing,CRT, PWB
palladium0.000395%connectivity, conductivity/PWB, connectors
manganese0.03150%structural, magnetivity/(steel) housing,CRT, PWB
silver0.018998%conductivity/PWB, connectors
antinomy0.00940%diodes/housing, PWB, CRT
bismuth0.00630%wetting agent in thick film/PWB
chromium0.00630%decorative, hardener/(steel) housing
cadmium0.00940%battery, blu_green phosphor emitter/housing, PWB, CRT
selenium0.001670%rectifiers/PWB
niobium0.00020%welding allow/housing
yttrium0.00020%red phosphor emitter/CRT
rhodium050%thick film conductor/PWB
platinum095%thick film conductor/PWB
mercury0.00220%batteries, switches/housing, PWB
arsenic0.00130%doping agents in transistors/PWB
silica24.88030%glass, solid state devices/CRT,PWB

Source: Handy and Harman Electronic Materials Corp.
72 Elm Street
North Attleboro, MA  02760
www.handyharman.com

Table presented in:
Microelectronics and Computer Technology Corporation (MCC). 1996.
Electronics Industry Environmental Roadmap. Austin, TX:  MCC.

Last Updated on 05/06/1999  

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