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micron Definition

mi·cron (mī′krän′)

noun pl. -·crons′ or -·cra-krə

a unit of linear measure equal to one millionth of a meter, or one thousandth of a millimeter; micrometer: symbol, μm

Etymology: ModL < Gr mikron, neut. of mikros, small, minute: see mica

micron ( Telecom Definition
micron Usage Examples

Preposition: on

  • side: With time the fluid rafts solidify into rigid, flat crystallites, near-perfect 2D crystalline structures some tens of microns on a side.

Adjective modifier

  • square: An average bacterium would be about 1.0 micron by 0.5 micron or cover an area of 0.5 square microns.
  • few: Typical feature sizes for laser machining range from a few microns to many hundreds of microns.
  • several: However the beam thickness, which is of several microns, is difficult to measure with sufficient uncertainty.
  • ~10: There is a need within the biological community, especially for drug targeting, for subcellular radioisotope imaging ( ~10 microns ).
  • cubic: After all, even a cubic micron of water contains about thirty billion molecules.

Converse of object

  • measure: In 1844 Antoine LeCoultre was the first person to measure a micron.
  • move: A new line of data is printed each time the paper moves 42.3 microns.

Noun used with modifier

  • sub: The minimum dimension of manufactured devices and ICs has decreased from 20 microns to the sub micron levels of today.
  • sub-100: This new capability allows for measurement of sub-100 micron test pads in chips.

Preposition: in

  • diameter: The oblique section is circa 163 microns in maximum diameter.
  • size: Studies have shown most engine wear is caused by particles 10 to 20 microns in size.
  • length: The smallest being less than 50 microns in length.

Preposition: of

  • material: Strain fields of any defects within the top few microns of the materials are identified in a reflection mode scan.

Modifies a noun

  • sieve: It is then washed through a 75 micron sieve using hot water.
  • diameter: The IRIS corona best fitting the image was from 13.5 micron diameter droplets.
  • laminate: Tarpaulin 10ft x 12ft Green £ 8.42 ( Save £ 5.62 ) Manufactured from 130g/m² material with heavy, 30 micron laminate.
  • wavelength: Therefore they are very sensitive to the near infrared, up to 1.3 micron wavelength.
  • thickness: Layers greater than 1 micron thickness can be achieved.
  • mesh: A typical process involves laying down a precoat of coarse powder onto a screen of around 50 micron mesh size.