Semiconductor Glossary - H
Health Advisory
The specific surroundings within which an organism, a species, or a community lives. The surroundings include physical factors such as temperature, moisture, and light together with biological factors such as the presence of food or predator organisms. The term can be employed to define surroundings on almost any scale from marine habitat, which encompasses the oceans, to microhabitat in a hair follicle of the skin.
Hardwired Array Logic
The time taken by certain materials to lose half their strength. The time required for half of the atoms of a radioactive element to undergo decay. The time required for the elimination of one half a total dose from the body.
A class of simple hydrocarbon derivatives in which bromine, chlorine and fluorine are substituted for some or all of the hydrogen atoms. These compounds are used mainly as fire-extinguishing gases, the two best known being Halon 1211 (CF2BrCl) and Halon 1301 (CF3Br). The chemicals are long-lived in the troposphere and are implicated in the depletion of the ozone layer.
A mechanical device attached to an automatic testing or finishing machine which loads the parts one at a time.
Hazardous Air Pollutant
A photoplate coated with a relatively hard, non-emulsion coating that can be selectively etched to produce a photomask. Popular hard surface materials are chromium, chromium oxide, and iron oxide.
The physical components of a computer or an electronic system - as opposed to software, which is the term used to describe the programs and instructions for a computer.
Hot Air Solder Leveling
Process to deposit uniform coating of solder on PCB's.
- Hazardous Waste Managemente
The systematic control of the collection, source separation, storage, transportation, processing, treatment, recovery, and disposal of hazardous wastes.
Hazardous Materials
Hazard and operability study
Hydrobromofluorocarbon
Hydrocarbon
Hexachlorobenzene
Human Body Model
Hexachlorocyclopentadiene
Hydrochlorofluorocarbon
Hot Carrier Injection test
Hydrogen chloride. Hydrochloric acid
High-speed Complementary Metal Oxide Silicon
High-Density Compact Disk
1) Hard Disk Drive
2) Halogenated dibenzo-p-dioxin
Halogenated dibenzofuran
Hardware Development Station
Hardware Description Language
A kind of language used for the conceptual design of integrated circuits. Examples are VHDL and Verilog.
High Density Load Controller
High-density polyethylene
Hardware Development Station
High speed Digital Subscriber Line
High Definition TV
Half DupleX
Health Effect Advisories
The number of employees in an organization or assigned to an activity.
An assembly that serves to dissipate, carry away, or radiate into the surrounding atmosphere heat that is generated by an active electronic device.
Metallic elements like mercury, chromium, cadmium, arsenic, and lead, with high molecular weights. They can damage living beings at low concentrations and tend to accumulate in the food chain.
High-Efficiency Particulate Air filter
A specially constructed filter membrane that allows a high volume of air flow and stops small particles of some pre-determined size from passing through.
HETetodyne
A chemical primer used to promote improved adhesion between the (HMDS) photoresist layer and the underlying surface.
1) High Frequency
2) Hydrogen Fluoride: hydrofluoric acid
1) Hydrofluorocarbon
2) Hybrid Fiber Coax
Set-top Box field. Fiber, then coax to 500 homes.
Hold For Release
Hierarchical File System
Mercury
Hazard Index
Hybrid-Integrated Circuit
A special pressure vessel contained inside a resistance heated furnace. This pressure vessel allows thermal oxidation to be done at raised pressure levels of 5 to 25 atmospheres.
Home Information Infrastructure
The displacement of a thin-film material that occurs when heated and cooled. Hillocks of aluminum are sometimes found in the aluminum interconnect metal on semiconductor devices.
HIgh-Noise-Immunity Logic
ST integrated circuit package identical in shape and size to the standard quad flat package but with greater power handling capacity.
High Reliability
Hi-Rel assembly is a specific activity within Back-End. Products manufactured are mainly aimed at space applications.
High-volume air sampler
High Level Radioactive Waste
Head Mounted Display
HexaMethylDiSizane
Hazardous Materials Information System
High-Performance MOS
A scaled, high-performance NMOS structure.
Halogenated Organic Compounds
A temporary stoppage.
The absence of a valence electron in a semiconductor crystal. The movement of a hole is equivalent to the movement of a positive charge.
Of or related to a view of the natural environment that encompasses an understanding of the functioning of the complete array of organisms and chemical-physical factors acting in concert rather than the properties of the individual parts.
Horse Power
Hewlett-Packard Graphics Language
High-Performance Liquid Chromatography
Human Resources
Halon Recycling Corp.
Hyper Text Markup Language
Hazard Ranking System
Hue Saturation Brightness
High Speed Direct injection
Automotive filed
Hue Saturation Value
Hazardous and Solid Waste Amendments
High Temperature Bake
High-Temperature Gas Reactor
High-Threshhold Logic
Hyper Text Markup Language
A text markup language widely used in the world-wide web. HTML indicates how a text is to be presented and includes the hypertext links that make it possible to navigate from one page to another.
High Temperature Operating Life Test
HyperText Transfer Protocol
The standard protocol for transferring hypertext files through Internet. This is the protocol most used on the world-wide web.
Secured HTTP
Head Up Display
Automotive filed.
Organic matter in soil derived from the partial decomposition of plant and animal remains. Generally, the decomposition has proceeded sufficiently to make it impossible to recognize the original material.
High-Voltage
Heating, Ventilation and Air Conditioning
Heating, Ventilation, Air Conditioning and Refrigeration
High Voltage Direct Current
High Voltage Integrated Circuit
High Voltage Power Supply
Hazardous Waste
Hardware
Heptawatt
Hazardous Waste Management
Hazardous Waste Management facility
Heavy-Water Reactor
A microelectronic device consisting of both film circuits and semiconductor elements.
A strong acid used to remove silicon dioxide. Generally it is mixed with ammonium fluoride for better etch-rate control.
A common gas used in semiconductor processing. One must be cautious of the explosive nature of hydrogen.
A way of jumping to another place on the Internet. Hyper links usually appear in a different format from regular text. You initiate the jump by clicking the link.
Documents with links to other documents. Click a link to display the other document.
High-Yelding Varieties
Hertz (cycles per second)
