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The 3 μm process (3 micrometer process) is the level of MOSFET semiconductor process technology that was reached around 1977,[1][2] by companies such as Intel.
The 3 μm process refers to the minimum size that could be reliably produced. The smallest transistors and other circuit elements on a chip made with this process were around 3 micrometers wide.
Products featuring 3 μm manufacturing process
edit- Intel's 8085, 8086, 8088 CPU's launched in 1976, 1978, 1979, respectively, were manufactured using its 3.2 μm NMOS (HMOS) process.[1] [failed verification].[3][dubious – discuss]
- Hitachi's 4 kbit HM6147 SRAM memory chip, launched in 1978, introduced the twin-well CMOS process, at 3 μm.[4]
- Motorola 68000 (MC68000) CPU, launched in 1979, was originally fabricated using an HMOS process with a 3.5 μm feature size.[5][circular reference]
- The ARM1 was launched in 1985 and manufactured on a 3 μm process.[6]
References
edit- ^ a b Mueller, S (21 July 2006). "Microprocessors from 1971 to the Present". informIT. Retrieved 11 May 2012.
- ^ Myslewski, R (15 November 2011). "Happy 40th birthday, Intel 4004!". TheRegister.
- ^ "History of the Intel Microprocessor - Listoid". Archived from the original on 27 April 2015. Retrieved 5 January 2014.
- ^ "1978: Double-well fast CMOS SRAM (Hitachi)" (PDF). Semiconductor History Museum of Japan. Archived from the original (PDF) on 5 July 2019. Retrieved 5 July 2019.
- ^ Motorola 68000
- ^ "ARM's Race to Embedded World Domination".
| Preceded by 6 μm process |
MOSFET semiconductor device fabrication process | Succeeded by 1.5 μm process |
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