250 nm process

The 250 nm process (250 nanometer process or 0.25 μm process) is 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's CPU and GPU.
The initial version of the Emotion Engine processor used in the PlayStation 2.

References

↑ Brand, Adam; et al. (1998). "Intel's 0.25 Micron, 2.0Volts Logic Process Technology" (PDF). Intel Technology Journal.

Preceded by 350 nm	CMOS manufacturing processes	Succeeded by 180 nm

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[1] Brand, Adam; et al. (1998). "Intel's 0.25 Micron, 2.0Volts Logic Process Technology" (PDF). Intel Technology Journal.

Semiconductor device fabrication

MOSFET scaling (process nodes)
20 μm – 1968 10 μm – 1971 6 μm – 1974 3 μm – 1977 1.5 μm – 1981 1 μm – 1984 800 nm – 1987 600 nm – 1990 350 nm – 1993 250 nm – 1996 180 nm – 1999 130 nm – 2001 90 nm – 2003 65 nm – 2005 45 nm – 2007 32 nm – 2009 22 nm – 2012 14 nm – 2014 10 nm – 2016 7 nm – 2018 5 nm – 2020 3 nm – 2022 2 nm – 2025
Future 1 nm ~ 2027
Half-nodes Density CMOS Device (multi-gate) Moore's law Transistor count Semiconductor Industry Nanoelectronics
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