SCEN103 Class 28
Bottom of page/
Building a Transistor
(Examine poster of Intel's 386 microprocessor.)
- Pentium Pro, recently available from Intel,
has 5.5 million transistors.
- About 10 years ago, the 386 microprocessor was introduced;
it had 275,000 tranistors on a chip of silicon about 1cm x 1cm.
- How can so many transistors be put on such a small amount of silicon?
- The following table was compiled from the
ChipList, by Aad Offerman
||0.8 micron CMOS
||0.8 micron biCMOS
||Pentium Pro (P6)
||0.6 micron biCMOS
- Graph of the data above.
- Schematic of npn transistor (viewgraph)
- Schematic of diffusion doping procedure (viewgraph)
- Slide show
of doping steps for fabricating feature on silicon
- What limits the number of transistors on an integrated circuit?
- Why put more transistors on an integrated circuit?
- Why not make just make the integrated circuits bigger to get more transistors on them?
- Slide show on Integrated Circuit Yield
sandpile.org, the world's leading source for pure technical I!-32 processor information
How Microprocessors Work from
How Stuff Works
Comments, suggestions, or requests to firstname.lastname@example.org.
Last updated July 6, 1999.
Copyright George Watson, Univ. of Delaware, 1999.