Digital Semiconductor - ορισμός. Τι είναι το Digital Semiconductor
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Τι (ποιος) είναι Digital Semiconductor - ορισμός

DATA STORAGE DEVICE
Digital memory; Semiconductor Memory; Semiconductor memories; Electronic memory; Memory chip; MOS memory; History of semiconductor memory

Semiconductor (artists)         
BRITISH ARTIST DUO RUTH JARMAN AND JOE GERHARDT
Semiconductor Films
Semiconductor (also Semiconductor Films) is UK artist duo Ruth Jarman and Joe Gerhardt. They have been working together for over twenty years producing visually and intellectually engaging moving image works which explore the material nature of our world and how we experience it through the lens of science and technology, questioning how these devices mediate our experiences.
Semiconductor device         
  • An n–p–n bipolar junction transistor structure
  • A stylized replica of the first transistor
  • Operation of a [[MOSFET]] and its Id-Vg curve. At first, when no gate voltage is applied. There is no inversion electron in the channel, the device is OFF. As gate voltage increase, the inversion electron density in the channel increase, the current increases, and the device turns on.
ELECTRONIC COMPONENT THAT EXPLOITS THE ELECTRONIC PROPERTIES OF SEMICONDUCTOR MATERIALS
Semiconductor devices; Semiconductor device physics; Semiconductor Devices; Semiconductor electronics; Semiconductor component; History of semiconductor device development
A semiconductor device is an electronic component that relies on the electronic properties of a semiconductor material (primarily silicon, germanium, and gallium arsenide, as well as organic semiconductors) for its function. Its conductivity lies between conductors and insulators.
semiconductor         
  • [[John Bardeen]], [[William Shockley]] and [[Walter Brattain]] developed the bipolar [[point-contact transistor]] in 1947.
  • [[Karl Ferdinand Braun]] developed the [[crystal detector]], the first [[semiconductor device]], in 1874.
  • ingot]] of [[monocrystalline silicon]]
  • [[Silicon]] crystals are the most common semiconducting materials used in [[microelectronics]] and [[photovoltaics]].
MATERIAL THAT HAS ELECTRICAL CONDUCTIVITY INTERMEDIATE TO THAT OF A CONDUCTOR AND AN INSULATOR
Semiconductors; Semi-Conductors; Semi-conductor; Semiconductor physics; Semiconducting material; List of semiconductor devices; Semiconductor material; Semiconducting; Semi conductor; Semiconductive; Electronic Materials; Semiconduction; Semicon; Electronic materials; Semi-conducting; Semiconductivity; Semi conductors; Physics of semiconductors; Electronic substance
<electronics> 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)

Βικιπαίδεια

Semiconductor memory

Semiconductor memory is a digital electronic semiconductor device used for digital data storage, such as computer memory. It typically refers to devices in which data is stored within metal–oxide–semiconductor (MOS) memory cells on a silicon integrated circuit memory chip. There are numerous different types using different semiconductor technologies. The two main types of random-access memory (RAM) are static RAM (SRAM), which uses several transistors per memory cell, and dynamic RAM (DRAM), which uses a transistor and a MOS capacitor per cell. Non-volatile memory (such as EPROM, EEPROM and flash memory) uses floating-gate memory cells, which consist of a single floating-gate transistor per cell.

Most types of semiconductor memory have the property of random access, which means that it takes the same amount of time to access any memory location, so data can be efficiently accessed in any random order. This contrasts with data storage media such as hard disks and CDs which read and write data consecutively and therefore the data can only be accessed in the same sequence it was written. Semiconductor memory also has much faster access times than other types of data storage; a byte of data can be written to or read from semiconductor memory within a few nanoseconds, while access time for rotating storage such as hard disks is in the range of milliseconds. For these reasons it is used for primary storage, to hold the program and data the computer is currently working on, among other uses.

As of 2017, semiconductor memory chips sell $124 billion annually, accounting for 30% of the semiconductor industry. Shift registers, processor registers, data buffers and other small digital registers that have no memory address decoding mechanism are typically not referred to as memory although they also store digital data.