1.5 μm process

The 1.5 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 1.5 micrometers wide.

Products featuring 1.5 μm manufacturing process

• NEC's 64 kbit SRAM memory chip introduced the 1.5 μm process in 1981.
• Intel 80286 CPU launched in 1982 was manufactured using this process.
• Intel introduced a 64 kbit DRAM memory chip using a 1.5 μm CMOS process in 1983.
• Ricoh RF5C164 is a 1.5 μm silicon-gate CMOS sound chip used in the Sega CD video game console, released in 1991.
• The Amiga Advanced Graphics Architecture (initially sold in 1992) included chips such as Lisa that were manufactured using a 1.5 μm CMOS process.
• Intel used the 1.5-micron process on the HMOS-III technology.
• Intel used the 1.4-micron process on the HMOS II-E technology.
• Intel used the 1.5-micron process on the CHMOS III technology.