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Useful Industry Links Glossary Of Electronic and Elctrical Terms  

ES Components has collected hundreds of definitions to help you with the meaning of acronyms, words and
regulations that you may run into in the electronic and electrical industry
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  Term Definition  
   
  DECAY TIME The time it takes for a voltage to be reduced to a given percent of the peak voltage. See ELECTROSTATIC DISCHARGE.  
       
  DELAY TIME The time it takes for a circuit breaker to open after its rated current is exceeded. See BLOW TIME.  
       
  DIAC A two-terminal bidirectional semiconductor diode AC switch used for triggering a TRIAC  
       
  DIE A single square or rectangular piece of semiconductor material into which a specific electrical circuit has been fabricated.  
       
  DIE ATTACH Bonding of die to a substrate or package.  
       
  DIELECTRIC ISOLATION Electrical isolation of one or more elements of an integrated circuit by surrounding the elements with an isolating barrier such as semiconductor oxide.  
       
  DIE PRODUCTS Includes IC devices that are sold on the open market in bare die, flip chip or wafer level chip scale package formats.  
       
  DIE-SHEAR TEST A test to determine the shear strength of the bond between a die and the base it is bonded to.  
       
  DIELECTRIC ISOLATION Electrical isolation of one or more elements of an integrated circuit by surrounding the elements with an isolating barrier such as semiconductor oxide.  
       
  DIFFUSION One of a series of steps in the fabrication of a semiconductor. This step introduces a small amount of a chemical element, called impurity or dopant, into the substrate. These steps will produce either N-type or P-type regions to create the function of a desired component on the chip.  
       
  DIGITAL SWITCH A switching circuit that turns ON and OFF in response to a digital or step-function pulse  
       
  DIODE A two-terminal semiconductor device that will allow current to flow through it in only one direction. With the proper voltage polarity across the device, it will act as a conductor. When the voltage polarity is reversed, the device will act as a nonconductor, allowing no current to flow.  
       
  DIGITAL VOLTAGE A discontinuous or step-function electrical pulse characterized by an instantaneous change from zero to some finite level, either in a positive or negative direction with respect to a reference.  
       
  DIRECT CHIP ATTACH (DCA) A name applied to any of the chip-to-substrate connections used to eliminate the first level of packaging: see also Chip-on-Board.  
       
  DIRECT CURRENT - DC An electrical current or voltage with a constant direction (polarity) with respect to a fixed reference. DC can be either positive or negative.  
       
  DISCRETE SEMICONDUCTORS (diodes, transistors, optoelectronic components) typically perform a single function in electronic circuits, the purpose of which is switching, amplifying, or rectifying and transmitting electrical signals. Semiconductors are referred to as "active" components because they require power to function.  
       
  DOWN BONDING A wire bond operation carried out from a higher to a lower level or plane.  
       
  DRAIN The output terminal of a JFET or MOSFET  
       
       
       
       


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