250 nanometer

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The 250 nanometer (250 nm or 0.25 µm) process refers to a level of semiconductor process technology that was reached by most manufacturers in the 1997–1998 timeframe.

250 nm is also within the Ultra Violet (UV) light spectrum. 250 nm has been shown to be very effective at killing bacteria.[1]

Products featuring 250 nm manufacturing process[edit]


  1. ^ 1937-, Bolton, James R., (2008). The ultraviolet disinfection handbook. Cotton, Christine A. (Christine Anne) (1st ed.). Denver, CO: American Water Works Association. ISBN 9781583215845. OCLC 707936933.

Preceded by
350 nm
CMOS manufacturing processes Succeeded by
180 nm