what is 1 micrometer
The micrometer is a unit of measure for the core in optical fiber , for which the most common diameter is 62.5 micrometers. It is also used to measure the line width on a microchip . Intel's Pentium 4 microprocessors are built using 0.18 or 0.13 micrometer line widths. AMD's Athlon uses a 0.18 line width.