| slovo | definícia |
silicon
(mass) | silicon
- kremík |
silicon
(encz) | silicon,křemík n: Zdeněk Brož |
Silicon
(gcide) | Silicon \Sil"i*con\, n. [See Silica.] (Chem.)
A nonmetalic element analogous to carbon. It always occurs
combined in nature, and is artificially obtained in the free
state, usually as a dark brown amorphous powder, or as a dark
crystalline substance with a meetallic luster. Its oxide is
silica, or common quartz, and in this form, or as silicates,
it is, next to oxygen, the most abundant element of the
earth's crust. Silicon is characteristically the element of
the mineral kingdom, as carbon is of the organic world.
Symbol Si. Atomic weight 28. Called also silicium.
[1913 Webster] |
silicon
(wn) | silicon
n 1: a tetravalent nonmetallic element; next to oxygen it is the
most abundant element in the earth's crust; occurs in clay
and feldspar and granite and quartz and sand; used as a
semiconductor in transistors [syn: silicon, Si, {atomic
number 14}] |
silicon
(foldoc) | silicon
1. The material used as the base (or
"substrate") for most integrated circuits.
2. Hardware, especially integrated circuits or
microprocessor-based computer systems (compare iron).
Contrast: software. See also sandbender.
[Jargon File]
(1996-05-28)
|
silicon
(jargon) | silicon
n.
Hardware, esp. ICs or microprocessor-based computer systems (compare {iron
}). Contrasted with software. See also sandbender.
|
silicon
(elements) | silicon
Symbol: Si
Atomic number: 14
Atomic weight: 28.086
Metalloid element belonging to group 14 of the periodic table. It is the
second most abundant element in the Earth's crust, making up 25.7% of it
by weight. Chemically less reactive than carbon. First identified by
Lavoisier in 1787 and first isolated in 1823 by Berzelius.
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| | podobné slovo | definícia |
siliconefree
(mass) | silicone-free
- bez silikonu |
silicon bronze
(encz) | silicon bronze, n: |
silicon carbide
(encz) | silicon carbide, n: |
silicon chip
(encz) | silicon chip,křemíkový čip |
silicon dioxide
(encz) | silicon dioxide, n: |
silicon oxide
(encz) | silicon oxide, n: |
silicon valley
(encz) | Silicon Valley,křemíkové údolí Zdeněk BrožSilicon Valley,oblast v Kalifornii Zdeněk Brož |
silicone
(encz) | silicone,silikon n: Zdeněk Brož |
silicone polymer
(encz) | silicone polymer, n: |
silicone resin
(encz) | silicone resin, n: |
silicone rubber
(encz) | silicone rubber, n: |
Basilicon
(gcide) | Basilicon \Ba*sil"i*con\, n. [L. basilicon, Gr. basiliko`n neut.
of basiliko`s: cf. F. basilicon. See Basilica.] (Med.)
An ointment composed of wax, pitch, resin, and olive oil,
lard, or other fatty substance.
[1913 Webster] |
ekasilicon
(gcide) | Germanium \Ger*ma"ni*um\, n. [NL., fr. L. Germania Germany.]
(Chem.)
A rare element, discovered in 1885 in a silver ore
(argyrodite) at Freiberg. It is a brittle, silver-white
metal, chemically intermediate between the metals and
nonmetals, resembles tin, and is in general identical with
the predicted ekasilicon. Symbol Ge. Atomic number 32.
Atomic weight 72.59. It has excellent semiconductor
properties, and is used in transistors and diodes.
[1913 Webster +PJC]Ekasilicon \Ek`a*sil"i*con\, n. [Skr. [=e]ka one + E. silicon.]
(Chem.)
The name of a hypothetical element predicted by Mendeleev and
afterwards discovered and named germanium; -- so called
because it was a missing analogue of the silicon group. See
Germanium, and cf. Ekabor. Also see periodic table.
[1913 Webster +PJC] |
Ekasilicon
(gcide) | Germanium \Ger*ma"ni*um\, n. [NL., fr. L. Germania Germany.]
(Chem.)
A rare element, discovered in 1885 in a silver ore
(argyrodite) at Freiberg. It is a brittle, silver-white
metal, chemically intermediate between the metals and
nonmetals, resembles tin, and is in general identical with
the predicted ekasilicon. Symbol Ge. Atomic number 32.
Atomic weight 72.59. It has excellent semiconductor
properties, and is used in transistors and diodes.
[1913 Webster +PJC]Ekasilicon \Ek`a*sil"i*con\, n. [Skr. [=e]ka one + E. silicon.]
(Chem.)
The name of a hypothetical element predicted by Mendeleev and
afterwards discovered and named germanium; -- so called
because it was a missing analogue of the silicon group. See
Germanium, and cf. Ekabor. Also see periodic table.
[1913 Webster +PJC] |
Silicon
(gcide) | Silicon \Sil"i*con\, n. [See Silica.] (Chem.)
A nonmetalic element analogous to carbon. It always occurs
combined in nature, and is artificially obtained in the free
state, usually as a dark brown amorphous powder, or as a dark
crystalline substance with a meetallic luster. Its oxide is
silica, or common quartz, and in this form, or as silicates,
it is, next to oxygen, the most abundant element of the
earth's crust. Silicon is characteristically the element of
the mineral kingdom, as carbon is of the organic world.
Symbol Si. Atomic weight 28. Called also silicium.
[1913 Webster] |
silicon carbide
(gcide) | Carborundum \Car`bo*run"dum\ (k[aum]r`b[-o]*r[u^]n"d[u^]m), [a
trade name, from Carbon + corundum.]
A beautiful crystalline compound, silicon carbide (SiC),
consisting of carbon and silicon in combination; -- also
called carbon silicide. It is made by heating carbon and
sand together in an electric furnace. The commercial article
is dark-colored and iridescent. It is harder than emery, and
is used as an abrasive.
[Webster 1913 Suppl.] carborundum cloth |
silicon hydride
(gcide) | Silicide \Sil"i*cide\, n. (Chem.)
A binary compound of silicon, or one regarded as binary. [R.]
[1913 Webster]
Hydrogen silicide (Chem.), a colorless, spontaneously
inflammable gas, SiH4, produced artifically from
silicon, and analogous to methane; -- called also
silico-methane, silicon hydride, and formerly
siliciureted hydrogen.
[1913 Webster] |
silicon bronze
(wn) | silicon bronze
n 1: a bronze with 2-3% silicon that is resistant to corrosion |
silicon carbide
(wn) | silicon carbide
n 1: an extremely hard blue-black crystalline compound (SiC)
used as an abrasive and a heat refractory material;
crystals of silicon carbide can be used as semiconductors |
silicon chip
(wn) | silicon chip
n 1: electronic equipment consisting of a small crystal of a
silicon semiconductor fabricated to carry out a number of
electronic functions in an integrated circuit [syn: chip,
microchip, micro chip, silicon chip, {microprocessor
chip}] |
silicon dioxide
(wn) | silicon dioxide
n 1: a white or colorless vitreous insoluble solid (SiO2);
various forms occur widely in the earth's crust as quartz
or cristobalite or tridymite or lechatelierite [syn:
silica, silicon oxide, silicon dioxide] |
silicon oxide
(wn) | silicon oxide
n 1: a white or colorless vitreous insoluble solid (SiO2);
various forms occur widely in the earth's crust as quartz
or cristobalite or tridymite or lechatelierite [syn:
silica, silicon oxide, silicon dioxide] |
silicon valley
(wn) | Silicon Valley
n 1: a region in California to the south of San Francisco that
is noted for its concentration of high-technology
industries |
silicone
(wn) | silicone
n 1: any of a large class of siloxanes that are unusually stable
over a wide range of temperatures; used in lubricants and
adhesives and coatings and synthetic rubber and electrical
insulation [syn: silicone, silicone polymer] |
silicone polymer
(wn) | silicone polymer
n 1: any of a large class of siloxanes that are unusually stable
over a wide range of temperatures; used in lubricants and
adhesives and coatings and synthetic rubber and electrical
insulation [syn: silicone, silicone polymer] |
silicone resin
(wn) | silicone resin
n 1: a polymeric silicone compound |
silicone rubber
(wn) | silicone rubber
n 1: made from silicone elastomers; retains flexibility
resilience and tensile strength over a wide temperature
range |
silicon chip
(foldoc) | integrated circuit
chip
silicon chip
(IC, or "chip") A microelectronic
semiconductor device consisting of many interconnected
transistors and other components. ICs are constructed
("fabricated") on a small rectangle (a "die") cut from a
Silicon (or for special applications, Sapphire) wafer. This
is known as the "substrate". Different areas of the substrate
are "doped" with other elements to make them either "p-type"
or "n-type" and polysilicon or aluminium tracks are etched in
one to three layers deposited over the surface. The die is
then connected into a package using gold wires which are
welded to "pads", usually found around the edge of the die.
Integrated circuits can be classified into analogue, digital
and hybrid (both analogue and digital on the same chip).
Digital integrated circuits can contain anything from one to
millions of logic gates - inverters, AND, OR, NAND
and NOR gates, flip-flops, multiplexors etc. on a few
square millimeters. The small size of these circuits allows
high speed, low power dissipation, and reduced manufacturing
cost compared with board-level integration.
The first integrated circuits contained only a few
transistors. Small Scale Integration (SSI) brought
circuits containing transistors numbered in the tens. Later,
Medium Scale Integration (MSI) contained hundreds of
transistors. Further development lead to Large Scale
Integration (LSI) (thousands), and VLSI (hundreds of
thousands and beyond). In 1986 the first one megabyte RAM
was introduced which contained more than one million
transistors.
LSI circuits began to be produced in large quantities around
1970 for computer main memories and pocket calculators. For
the first time it became possible to fabricate a CPU or even
an entire microprocesor on a single integrated circuit. The
most extreme technique is wafer-scale integration which uses
whole uncut wafers as components.
[Where and when was the term "chip" introduced?]
(1997-07-03)
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silicon graphics, inc.
(foldoc) | Silicon Graphics, Inc.
SGI
(SGI) Manufacturer of workstations and software
for graphics and image processing. SGI was founded by
Dr. James H. Clark, who left some time before May 1994 to
head Mosaic Communications Corporation.
Quarterly sales $433M, profits $44M (Aug 1994).
(http://sgi.com/).
(1994-09-26)
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