A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Strictly speaking, a semiconductor is a material with an electrical conductivity between that of an insulator and that of a conductor. Semiconductors can be single elements such as silicon or germanium or compounds such as gallium arsenide or indium phosphide. In day to day usage, however, the term "semiconductor" more frequently refers to the components manufactured from semiconductor materials.
- O
Oxygen
- O&M
Operations & Maintenance
- OA
Office Automation
- OC
Open Collector
- OCAP
1. Open Cable Specification
2.Out of Control Action
Plan List of actions to be performed in case of Out-Of-Control detected by SPC. It is usually de-fined in a check-list.
- OCR
1) Optical Character Recognition
2) Operator Certification Rate
- ODC
Ozone Depleting Chemicals
- ODM
Original Design Manufacturer
- ODP
Ozone Depleting Potential
- ODS
Ozone Depleting Substances
A term used to denote those substances released by human activities which react with and destroy the ozone molecules in the ozone layer of the stratosphere. The main ozone depleting substances are the chlorofluorocarbons (CFCs) and the halons, both of which are groups of chemicals that are extremely stable in the troposphere, with typical lifetimes of 60 to 100 years. Once the CFCs or halons migrate into the ozone layer, the ultraviolet radiation there is strong enough to break the molecules apart, releasing chlorine atoms (CFCs) or bromine atoms (Halons) which react with and destroy ozone.
- OECD
Organization of Economic Cooperation and Development
- OED
1) Order Entry Date
2) Oxford English Dictionary
- OEL
Occupational Exposure Limit
- OEM
Original Equipment Manufacturer
- OFDM
Orthogonal Frequency Division Modulation
Method used for carrier modulation in digital transmissions. A spread spectrum technique, it combines good noise resistance, immunity to reflections and efficient use of the spectrum.
- OHSAS
Occupational Health & Safety Assessment Series
- OJT
On the Job Training
- OLC
On Line Communities
- OLE
Object Linking & Embedding
- OLR
On Line Reporting
- OLT
Operating Life Test
- OM
Operating Management
Generally reporting to Senior Management
- OMEGA
One chip Multimedia EnGine Architecture
One of CMG's product family for digital video products
- OMM
Optimizer Manufacturing Management
- OOE
Open Order Entry
- OP amp
Operational amplifier
A general-purpose IC used as a basic building block for implementation of linear functions.
- Opaquing
The applying of minute droplets of opaquing ink to fill pinholes and correct geometric areas of mask or reticles.
- OpenMail
Electronic mail system. Uses communications interface with Lotus cc:Mail program.
- OPI
OPerating Instruction
- OR
Operations Review
- ORD
ORDer
- OR gate
The output is yes if at least one input is yes.
- Organic
Of or related to a substance that contains carbon atoms linked together by carbon-carbon bonds. All living matter is organic. The original definition of the term organic related to the source of chemical compounds, with organic compounds being those carbon-containing compounds obtained from plant or animal sources, whereas inorganic compounds were obtained from mineral sources. Compounds containing bonds between carbon atoms can now be made in the laboratory and industrially by man.
- ORP
Oxidation Reduction Potential
- OS
Operating System
- OSC
On Scene Coordinator
- OSCAR
Orbiting Satellite Carrying Amateur Radio
- OSD
On-Screen Display
The display of information, like channel number and volume on the screen of a TV set.
- OSG
Oscillator Safe Guard
micro feature.
- OSHA
Occupational Safety and Health Administration
- OSHAct
Occupational Safety and Health Act
- Osmosis
The tendency of a fluid to pass through a permeable membrane such as the wall of a living cell into a less concentrated solution so as to equalize the concentrations on both sides of the membrane.
- OSP
Organic Surface Protection
Material used to preserve the solderability of bare copper on PCB's.PBGA Plastic Ball Grid Array. Used to describe the family of 1.0 and 1.27 mm pitch packages with a total height typically 2.2 mm.
- OTDR
Optical Time Domain Reflectrometry
- OTOH
On the other hand
- OTP
One Time Programmable
1) A non volatile memory programmable only once, for example EPROM.
2) A windowless EPROM memory that cannot be erased, so each byte can be programmed just once.
- OVA
Organic Vapour Analyzer
- OVP
Over Voltage Protection
- Oxidation
The chemical process of joining oxygen with another element. In semiconductors, oxidation means the joining of oxygen and silicon to form silicon dioxide (SiO2).
- Oxide
Usually refers to silicon dioxide in semiconductor terminology.
- Oxide Etching
The removal of silicon dioxide.
- Oxygen
An element that is used in the formation of silicon dioxide.
- Ozone hole
A large area over Antarctica discovered ten years ago to have a seasonal drop in stratospheric ozone concentration of as much as 50 percent. A similar hole has been found more recently over the Arctic. It is linked to the formation of stratospheric ice clouds that release chlorine atoms from chlorofluorocarbons during the Antarctic winter. The chlorine is present in quantities that cause extensive ozone depletion when the spring and summer sunshine return.
- Ozone layer
An area of the stratosphere, about 20 to 50 kilometers in altitude, where the intensity of short-wavelength ultraviolet light from the sun (between 130 and 200 nanometers) is sufficiently high to convert normal diatomic oxygen (O2) to ozone (O3). The ozone thus formed provides a measure of protection to plant and animal life on the surface of the Earth because it absorbs ultraviolet radiation at wavelengths that are mutagenic (about 250 to 270 nanometers).
- Ozone (O3)
Triatomic oxygen. A reactive gas produced by lightning or photochemical reactions in the troposphere (the latter leads to the presence of ozone in photochemical smog) and by the absorption of ultraviolet radiation in the lower stratosphere (this leads to the formation of the ozone layer). In sufficiently high concentrations at ground level, the gas acts as an irritant to eyes and respiratory tract. It is also suspected of affecting plants, especially in the initial stages of their growth.
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