Revision as of 20:30, 30 March 2017

Semiconductor lithography processes technology

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The 280 nanometer (280 nm) lithography process is was semiconductor manufacturing process following the 350 nm process. Commercial integrated circuit manufacturing using 280 nm process began in late 1990s. 280 nm and was phased out and later replaced by 250 nm, 220 nm, and 180 nm processes.

Industry

Around 1996 Intel introduced a stopgap shrink between 0.35 µm and 0.25 µm. Unlike 0.35 µm which used BiCMOS process for their Pentium and Pentium Pro processors, the 0.28 µm process was a standard CMOS process. Featuring a smaller transistor gate pitch, the process shared similar metal layer sizes to the 0.35 µm (this is why some Intel documents refer to it as "0.35µm"). The process was used in Intel's P55C (MMX) and P6 Klamath core-based and models. The semi-shrink which resulted in smaller transistors and improved switching speed was done to compensate for the return to CMOS (i.e., lack of fast bipolar transistors).

280 nm Microprocessors

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280 nm Microarchitectures

• Intel P6

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