250 nanometer

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Semiconductor
manufacturing
processes

10 µm — 1971
3 µm — 1975
1.5 µm — 1982
1 µm — 1985
800 nm (.80 µm) — 1989
600 nm (.60 µm) — 1994
350 nm (.35 µm) — 1995
250 nm (.25 µm) — 1998
180 nm (.18 µm) — 1999
130 nm (.13 µm) — 2000
90 nm — 2002
65 nm — 2006
45 nm — 2008
32 nm — 2010
22 nm — 2011
16 nm — approx. 2013
11 nm — approx. 2015
6 nm — approx. 2020
4 nm — approx. 2022

Half-nodes

The 250 nm process refers to a level of semiconductor process technology.

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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