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Encyclopedia > Silicon germanium
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SiGe is the alloy of silicon and germanium. This material is commonly used in the integrated circuit manufacturing industry, where it is employed for producing heterojunction bipolar transistors or as a strain-inducing layer for CMOS transistors. This relatively new technology offers interesting opportunities in mixed-signal circuit and analog circuit IC design and manufacture. Some of the key points of SiGe include: Jump to: navigation, search General Name, Symbol, Number silicon, Si, 14 Chemical series metalloids Group, Period, Block 14, 3, p Appearance dark gray, bluish tinge Atomic mass 28. ... Jump to: navigation, search General Name, Symbol, Number germanium, Ge, 32 Chemical series metalloids Group, Period, Block 14, 4, p Appearance grayish white Atomic mass 72. ... Jump to: navigation, search Optical Microscope image of an integrated circuit showing defects in the aluminium layer deposition. ... A heterojunction is a semiconductor diode junction which is composed of alternating layers of semiconductor material. ... The schematic symbols for pnp_ and npn_type BJTs. ... Jump to: navigation, search Static CMOS Inverter CMOS (pronounced see-moss), which stands for complementary metal-oxide-semiconductor, is a major class of integrated circuits. ... Mixed-signal circuits refers to integrated circuits (ICs) which have both analog circuits and digital circuits combined on a single semiconductor die. ... Jump to: navigation, search An analog circuit (or analogue circuit) is an electric circuit that operates on analog signals. ... IC or ic may stand for: -ic suffix The IATA Airline Designator for Indian Airlines Illinois Central Railroad (AAR reporting mark IC) Immediate constituent (IC), in morphology Imperial College London - The famous science university is often referred to simply as IC In Casu, Latin for in this case In Character...

  • SiGe is manufactured on conventional silicon wafers and leverages conventional silicon processing toolsets. By leveraging established silicon process equipment, SiGe processes achieve costs that are similar to silicon CMOS manufacturing versus other more expensive heterojunction technologies such as gallium arsenide.
  • SiGe allows state-of-the-art CMOS logic to be highly integrated with ultra high performance heterojunction bipolar transistors making it optimal for mixed-signal circuits.
  • Heterojunction bipolar transistors have significantly higher forward gain and lower reverse gain which translates into better low current and high frequency performance than typically available from homojunction or traditional bipolar transistors
  • Being a heterojunction technology, the opportunity for band-gap tuning exists which has normally been available only to compound semiconductors.

The major players in SiGe foundry services are IBM, TSMC, Freescale (neé Motorola Semiconductor), Sony, Atmel, Chartered Semiconductor, Micrel and Conexant Jump to: navigation, search General Name, Symbol, Number silicon, Si, 14 Chemical series metalloids Group, Period, Block 14, 3, p Appearance dark gray, bluish tinge Atomic mass 28. ... Nasas Glenn Research Center cleanroom. ... Jump to: navigation, search Static CMOS Inverter CMOS (pronounced see-moss), which stands for complementary metal-oxide-semiconductor, is a major class of integrated circuits. ... A heterojunction is a semiconductor diode junction which is composed of alternating layers of semiconductor material. ... This article is about the chemical compound. ... A heterojunction is a semiconductor diode junction which is composed of alternating layers of semiconductor material. ... The schematic symbols for pnp_ and npn_type BJTs. ... Mixed-signal circuits refers to integrated circuits (ICs) which have both analog circuits and digital circuits combined on a single semiconductor die. ... The schematic symbols for pnp_ and npn_type BJTs. ... The schematic symbols for pnp_ and npn_type BJTs. ... This article needs to be cleaned up to conform to a higher standard of quality. ... Jump to: navigation, search International Business Machines Corporation (IBM, or colloquially, Big Blue) NYSE: IBM (incorporated June 15, 1911, in operation since 1888) is headquartered in Armonk, NY, USA. The company manufactures and sells computer hardware, software, and services. ... Taiwan Semiconductor Manufacturing Company, Limited (Traditional Chinese: 台灣積體電路製造股份有限公司, abbrev. ... American corporation Freescale Semiconductor, Inc. ... Motorola NYSE: MOT (TYO: 6686) is a global communications company based in Schaumburg, Illinois, a Chicago suburb. ... Jump to: navigation, search Sony Corporation (Japanese katakana: ソニー) (TYO: 6758), NYSE: SNE is a global Japanese consumer electronics corporation based in Tokyo, Japan. ... Atmel Corporation is a manufacturer of semiconductors, founded in 1984. ... Micrel Incorporated, founded in 1978, is a global manufacturer of integrated circuits (IC) with fiscal year 2004 revenue of $257. ... Conexant is a publically listed (NASDAQ: CNXT) semiconductor company, which was formerly the semiconductor division of Rockwell International. ...


  Results from FactBites:
 
Germanium - Wikipedia, the free encyclopedia (554 words)
Germanium forms a large number of organometallic compounds and is an important semiconductor material used in transistors.
Germanium transistors are still used in stompboxes by musicians who wish to reproduce the distinctive character of fuzzboxes from the early Rock and roll era.
Germanium is obtained commercially from zinc ore processing smelter dust and from the combustion by-products of certain coals.
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