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semiconductor    音標拼音: [s,ɛmikənd'ʌktɚ] [s,ɛmɪkənd'ʌktɚ] [s,ɛmɑɪkənd'ʌktɚ]
n. 半導體

半導體

semiconductor
浮動柵金屬氧化物半導體 FGMOS


semiconductor
金屬-氮化物-氧化物-半導體 MNOS


semiconductor
金氧半導體;金屬氧化物半導體 MOS


semiconductor
金屬-鋁-半導體 MAS


semiconductor
金屬-絕緣體-半導體 MIS


semiconductor
半導體 SC

semiconductor
半導體

semiconductor
n 1: a substance as germanium or silicon whose electrical
conductivity is intermediate between that of a metal and an
insulator; its conductivity increases with temperature and
in the presence of impurities [synonym: {semiconductor},
{semiconducting material}]
2: a conductor made with semiconducting material [synonym:
{semiconductor device}, {semiconductor unit},
{semiconductor}]

A material, typically crystaline, which allows
{current} to flow under certain circumstances. Common
semiconductors are silicon, germanium, gallium arsenide.
Semiconductors are used to make {diodes}, {transistors} and
other basic "solid state" electronic components.

As crystals of these materials are grown, they are "doped"
with traces of other elements called {donors} or {acceptors}
to make regions which are n- or p-type respectively for the
{electron model} or p- or n-type under the {hole model}.
Where n and p type regions adjoin, a junction is formed which
will pass {current} in one direction (from p to n) but not the
other, giving a {diode}.

One {model} of semiconductor behaviour describes the doping
elements as having either {free electrons} or {holes} dangling
at the points in the crystal lattice where the doping elements
replace one of the atoms of the foundation material. When
external electrons are applied to n-type material (which
already has free electrons present) the repulsive force of
like charges causes the free electrons to migrate toward the
junction, where they are attracted to the holes in the p-type
material. Thus the junction conducts current.

In contrast, when external electrons are applied to p-type
material, the attraction of unlike charges causes the holes to
migrate away from the junction and toward the source of
external electrons. The junction thus becomes "depleted" of
its charge carriers and is non-conducting.

(1995-10-04)

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英文字典中文字典相關資料:
  • Semiconductor - Wikipedia
    A semiconductor is a material with electrical conductivity between that of a conductor and an insulator [1] Its conductivity can be modified by adding impurities ("doping") to its crystal structure
  • What is a semiconductor? An electrical engineer explains how these . . .
    Generally speaking, the term semiconductor refers to a material – like silicon – that can conduct electricity much better than an insulator such as glass, but not as well as metals like copper
  • Semiconductor | Definition, Examples, Types, Uses, Materials, Devices . . .
    Semiconductor, any of a class of crystalline solids intermediate in electrical conductivity between a conductor and an insulator Semiconductors are employed in the manufacture of various kinds of electronic devices, including diodes, transistors, and integrated circuits
  • What is a semiconductor, and what is it used for? - TechTarget
    A semiconductor is a substance that can act as a conductor or insulator depending on other factors, enabling it to serve as a foundation for computers and other electronic devices The term semiconductor is now widely associated with integrated circuits
  • Semiconductor: Definition, Types, Examples, and Applications
    What is a semiconductor What is it used for Learn its types with examples and a diagram Also, learn about electron and hole mobilities in a semiconductor
  • Semiconductor: Types, Principle, Applications, Examples
    What Is a Semiconductor? Any substance with electrical conductivity that falls halfway between that of an insulator (such as rubber products or glassware) and a conductor (such as metallic substances) is called a semiconductor
  • What Is a Semiconductor? How Does It Work? | Built In
    A semiconductor is a material that controls electrical currents, making it an essential component of most modern electronics They are the computing chips and microcontrollers that power smartphones, computers and televisions
  • Semiconductors - GeeksforGeeks
    In a Semiconductor, when an electron leaves a place due to getting energy a place is left behind which is known as a hole A hole in a Semiconductor represents a region of positive charge where an electron's absence has left an opening in the covalent bond between atoms
  • About Semiconductors | SIA | Semiconductor Industry Association
    Semiconductor firms generally organize their activities around the two main stages of semiconductor production: design and manufacturing Companies that focus only on design are referred to as “fabless” firms, while companies that focus only on manufacturing are called “foundries ”
  • Semiconductor Research Corporation - SRC
    SRC’s ESH program is developing revolutionary and high-impact materials and processes to enable future generations of semiconductor manufacturing technologies, to enable sustainability and environmentally benign nanomanufacturing Research Programs AIHW | AI Hardware AMS-CSD | Analog Mixed-Signal Circuits, Systems, and Devices





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