250 nanometer

Semiconductor manufacturing processes

10 µm – 1971 6 µm – 1974 3 µm – 1977 1.5 µm – 1982 1 µm – 1985 800 nm – 1989 600 nm – 1994 350 nm – 1995 250 nm – 1997 180 nm – 1999 130 nm – 2001 90 nm – 2004 65 nm – 2006 45 nm – 2008 32 nm – 2010 22 nm – 2012 14 nm – 2014 10 nm – 2016–2017 7 nm – 2018–2019 5 nm – 2020–2021
Half-nodes

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

Products featuring 250 nm manufacturing process

The DEC Alpha 21264A, which was made commercially available in 1999.
The AMD K6-2 Chomper and Chomper Extended. Chomper was released on May 28, 1998.
The AMD K6-III "Sharptooth" used 250 nm.
The mobile Pentium MMX Tillamook, released in August 1997.
The Pentium II Deschutes.
The Pentium III Katmai.
The Dreamcast CPU and GPU.
The initial PlayStation 2's Emotion Engine CPU.

Preceded by 350 nm	CMOS manufacturing processes	Succeeded by 180 nm

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