About Semiconductors and Semiconductor Materials
Semiconductors and semiconductor materials are used to fabricate microelectronic devices and optoelectronic devices such as transistors, photodetectors and solar cells. Silicon (Si) is the most commonly used semiconductor material today; however, other semiconductor material types are also available. The number of valence shell electrons in a semiconductor material places this category of material between insulators (poor electrical conductors) and metals (good semiconductors). Insulators have a filled valence shell (eight electrons) and a large band gap, which results in poor electrical conductivity. Metals have a partially-filled valence shell and overlapping band gap, which results in free-traveling electrons and high electrical conductivity. Semiconductors and semiconductor materials are useful because their electrical conductivity can be altered with dopants, an applied electric field, or electromagnetic radiation.
There are two basic categories of semiconductors and semiconductor materials: electrical semiconductors and compound semiconductors. Silicon (Si) and germanium (Ge), the most common electrical semiconductors, are used in many semiconductor components. Gallium arsenide (GaAs) and indium phosphide (InP) are examples of composite semiconductors that contain added materials or dopants. Semiconductor doping, the addition of a very small amount of a foreign substance to a pure semiconductor crystal, provides a semiconductor with an excess of conducting electrons or an excess of conducting holes. The first semiconductors and semiconductor materials produced electrical conduction through contact with a metal wire. Subsequent technologies used semiconductor crystals and semiconductor diodes. A semiconductor diode allows current to flow in one direction only.
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Engineering Web: Semiconductors and Semiconductor Materials
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Semiconductor Materials Consultants Information | Business.com Semiconductor Materials Consultants Home » Directory » Electronics & Semiconductors » Semiconductors » Materials & Wafers » See Business.com, Inc. Information |
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Electrical conductivity - Wikipedia, the free encyclopedia It is also possible to have materials in which the conductivity is anisotropic, in which case ? is a 3×3 matrix (or more technically a rank-2 tensor) |
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Semiconductor Equipment and Materials International -... Semiconductor Equipment and Materials International (SEMI) is a trade organization of manufacturers of equipment and materials used in the |
Part Numbers for Semiconductors and Semiconductor Materials
| Part # | Distributor | Manufacturer | Product Category | Description |
|---|---|---|---|---|
| 152-KA | Newark | WAKEFIELD ENGINEERING | Adhesives | Adhesive Compound; Features:Produces A Rigid, High Strength Bond To Most Materials When Cured; For Use With:Semiconductors And Components ; Kit Contents:7 Oz. Resin, 0.5 Oz. Hardener; Shelf Life:365Days Rohs Compliant: Yes |
| 8830 | Newark | 3M | Mats | Static Dissipative Rubber Table Mat; Color:Gray; Body Material:Rubber; Roll Length:4ft; External Width:3ft; Features:Includes two 3034 installed snap fasteners and one 3048 Wrist Strap Grounding System RoHS Compliant: NA |
| 8831 | Newark | 3M | Mats | Static Dissipative Rubber Table Mat; Color:Blue; Body Material:Rubber; Roll Length:4ft; External Width:3ft; Features:Includes two 3034 installed snap fasteners and one 3048 Wrist Strap Grounding System RoHS Compliant: NA |
| MC23783 | Newark | DURATOOL | Grounding Cords | Esd Heel Grounder; Features:Two Layer Composite Sole, Material, Conductive Material Provides Rapid And Safe Dissipation, 18"" Conductive Ribbon, One Megohm Fully Insulated Safety Resistor; For Use With:Standard Shoes |
| 91-9622-27 | Newark | Global Measurement And Control | Microcontrollers | Wire, Ptfe, A, White, 1/0.4Mm, 100M; Area, Conductor Csa:0.128Mm2; Conductor Make-Up:1/0.4Mm; Voltage Rating, Ac:300V; Current Rating:4A; Colour, Primary Insulation:White; Material, Primary Insulation:Ptfe; Diameter, External:0.75Mm; Rohs Compliant: Yes |
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