Browse Definitions :
Definition

silicon (Si)

Contributor(s): Kimberly Andi

Silicon is a chemical element (its symbol in chemical formula expressions is "Si") that is present in sand and glass and which is the best known semiconductor material in electronic components. Its atomic number is 14. The most common isotope has atomic weight 28. In its pure state, silicon is a metal-like substance with an appearance and heft somewhat resembling aluminum. In its natural state, silicon appears bound up with other elements in the form of compounds. It is abundant in the crust of the earth.

Silicon conducts electricity to an extent that depends on the extent to which impurities are added. The addition of impurities to silicon, or to any semiconductor material, is called doping . Some impurities produce N-type silicon, in which the majority charge carriers are negatively charged electron s. Other impurities result in the production of P-type silicon, in which the majority charge carriers are positively charged hole s. Most silicon devices contain both N-type and P-type material.

Silicon is used in a wide variety of electronic and computer components, including:

This was last updated in March 2011

Continue Reading About silicon (Si)

Join the conversation

1 comment

Send me notifications when other members comment.

Please create a username to comment.

dsfs
Cancel

-ADS BY GOOGLE

File Extensions and File Formats

SearchCompliance

  • compliance framework

    A compliance framework is a structured set of guidelines that details an organization's processes for maintaining accordance with...

  • regulatory compliance

    Regulatory compliance is an organization's adherence to laws, regulations, guidelines and specifications relevant to its business...

  • privacy compliance

    Privacy compliance is a company's accordance with established personal information protection guidelines, specifications or ...

SearchSecurity

SearchHealthIT

  • telemedicine (telehealth)

    Telemedicine is the remote delivery of healthcare services, such as health assessments or consultations, over the ...

  • Project Nightingale

    Project Nightingale is a controversial partnership between Google and Ascension, the second largest health system in the United ...

  • medical practice management (MPM) software

    Medical practice management (MPM) software is a collection of computerized services used by healthcare professionals and ...

SearchDisasterRecovery

  • disaster recovery (DR) test

    A disaster recovery test (DR test) is the examination of each step in a disaster recovery plan as outlined in an organization's ...

  • business continuity plan (BCP)

    A business continuity plan (BCP) is a document that consists of the critical information an organization needs to continue ...

  • disaster recovery (DR)

    Disaster recovery (DR) is an area of security planning that aims to protect an organization from the effects of significant ...

SearchStorage

  • kilobyte (KB or Kbyte)

    A kilobyte (KB or Kbyte) is a unit of measurement for computer memory or data storage used by mathematics and computer science ...

  • megabytes per second (MBps)

    Megabytes per second (MBps) is a unit of measurement for data transfer speed to and from a computer storage device.

  • zettabyte

    A zettabyte is a unit of measurement used by technology professionals and the general public to describe a computer or other ...

Close