01_Lecutre1

01_Lecutre1 - Lecture 1 EE114 Lecture 1 IC Technology R....

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Lecture 1 EE114 R. Dutton, B. Murmann 1 Lecture 1 IC Technology EE 114 R. Dutton, B. Murmann Stanford University R. Dutton, B. Murmann 2 Technological Progress EE 114 Vacuum Tube 1906 Modern CMOS Transistor 1947 Modern Discrete Transistors Integrated Circuit 1958 Jack Kilby
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Lecture 1 EE114 R. Dutton, B. Murmann 3 Bob’s Summer Internship Fairchild Semiconductor (1967) Kilby, Moore and Bob Gordon Moore Bob Transistor IC R. Dutton, B. Murmann 4 Economics EE 114 [European Nanotechnology Roadmap]
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Lecture 1 EE114 R. Dutton, B. Murmann 5 Signal Processing There’s a big, big world out there--both application space and viable technology Digital Signal Processing (DSP) Apps: Geo-(ULF); Bio-(LF); Voice; AM; FM… Need Analog-to-Digital Conversion (ADC); basically solve the signal processing digitally (I.e. mainstream CMOS) Analog Signal Processing Apps: Base-band-->multi-GigaHz Determined by combination of application requirements and technology capabilities Low-voltage Medium-voltage High-voltage RF OE … ( CMOS ) ( CMOS +, BJT) ( CMOS ++, BJT+) (Si, III-V…”other”) (BJT voltage limits) (Silicon/MOS limits--freq., photons etc.) R. Dutton, B. Murmann 6 Technology Comparison Why use CMOS for analog integrated circuits? – Low cost, driven by high volume digital ICs – Integration with high density digital circuits • BiCMOS tends to be expensive EE 114 Parameter CMOS Si BJT SiGe BJT Device Speed High High High Noise Poor Good Good Transconductance Poor Good Good Intrinsic gain Poor Better Best
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Lecture 1 EE114 R. Dutton, B. Murmann 7 Historic Comment + Prospective View Historic Comment : Bipolar Technology is COOL and has evolved dramatically using both Si-mainstream (I.e. SiGe BiCMOS) and with compound materials (I.e. InP etc.). (the new) EE214 will include consideration of these trends. You can also (if you are interested) look at the notes from EE215 (no longer offered, eeclass.stanford.edu/spr08/ee215 ) Prospective View : CMOS is the “circuit building material of choice” in the information age. Hence, this class will focus exclusively on CMOS circuits. The previous slide mentions CMOS+ and CMOS++ versions. This simply refers to the fact that mainstream (low-voltage) CMOS has limits in terms of voltage and circuit components (for analog) that, if they add masks and cost to the IC fabrication process, are not broadly available*.
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01_Lecutre1 - Lecture 1 EE114 Lecture 1 IC Technology R....

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