process technology

(redirected from 180 nm)
Also found in: Wikipedia.

process technology

With regard to digital integrated circuits, process technology refers to the particular method used to make silicon chips. The driving force behind the manufacture of integrated circuits is miniaturization, and process technology boils down to the size of the finished transistor and other components. The smaller the transistors, the more transistors in the same area, the faster they switch, the less energy they require and the cooler the chip runs (given equal numbers of transistors).

Measured in Nanometers
The size of the features (the elements that make up the structures on a chip) used to be measured in micrometers. A 3 µm process technology, also called a "technology node" and "process node," referred to a silicon chip with features three micrometers in size. Today, features are measured in nanometers. A 45 nm process technology refers to features 45 nm or 0.45 µm in size.

Elements Measured
Historically, the process technology referred to the length of the silicon channel between the source and drain terminals in field effect transistors (see FET). The sizes of other features are generally derived as a ratio of the channel length, where some may be larger than the channel size and some smaller. For example, in a 90 nm process, the length of the channel may be 90 nm, but the width of the gate terminal may be only 50 nm.

An Example of Progress
Consider that the process technology of the first 486 chip in 1989 was one micron (1,000 nanometers). By 2003, the state-of-the-art decreased to 90 nm ("90 nano"). In 15 years, feature sizes were reduced by slightly less than one millionth of a meter. What may seem like a minuscule, microscopic change to the casual observer took thousands of man years and billions of dollars worth of research and development. Note the huge variance in semiconductor feature sizes starting in the 1950s (see chart below).

Chips Are Nanotechnology
Intel introduced 45 nm processors in 2008. To understand how tiny 45 nanometers is, it would take two thousand 45 nm objects laid side-by-side to equal the thickness of one human hair.

In 2010, 32 nm chips were introduced, and feature sizes as low as 11 nm are expected in the future. For some time, chips have been in the realm of nanotechnology, which refers to elements 100 nanometers and smaller. See half-node.

Half a Micron Is Huge
In a span of five years, the feature size on these AMD chips was reduced from .8 to .35 microns. Half a micron may seem insignificant, but not in the microminiature world of semiconductor manufacturing. As features get smaller, the chip runs cooler and faster. (Image courtesy of Advanced Micro Devices, Inc.)


Semiconductor Feature Sizes(approximate for all vendors)       Nanometers  MicrometersYear     (nm)        (µm)

 1957   120,000      120.0
 1963    30,000       30.0
 1971    10,000       10.0
 1974     6,000        6.0
 1976     3,000        3.0
 1982     1,500        1.5
 1985     1,300        1.3
 1989     1,000        1.0
 1993       600        0.6
 1996       350        0.35
 1998       250        0.25
 1999       180        0.18
 2001       130        0.13
 2003        90        0.09
 2005        65        0.065
 2008        45        0.045
 2010        32        0.032
 2012        22        0.022
 2014        16        0.016
 2014        14        0.014
 2016**      11        0.011
 2018**       6        0.006
 2020**       4        0.004

 ** estimated
References in periodicals archive ?
The vessel is able to quickly sail the 180 nm from the offshore site to the work harbour, which was a strict requirement for compliance with the strict offshore regulations.
Control: Microfluidics Particle Reaction Size Technology Control: Reduction API (single pass) Crystallization (25 passes) Azithromycin 50-100 nm Oxycarbazepine 161 nm 5,00 nm x 1,200 nm 20,000 nm Norfloxacin 180 nm 3,000 nm x 428 nm 1,000,000 nm Loratadine 90-332 nm Note: Figures are median particle size.
The motors feature Class F insulation for a temperature rating of 155(degree)C and provide stall torque from 75 to 180 Nm.
It develops a maximum power output of 64 bhp and a torque of 180 Nm and, with its maximum speed of 80 mph, it will have all the performance it needs in this busy environment.
In response to customer demand, we have now expanded support for Quartz DRC and Quartz LVS to include 180 nm.
2-litre TDI engine which churns out a power of 75 PS (55 kW) at 4200rpm and max torque of 180 Nm at 2000 rpm.
2 L turbocharged three-cylinder engine that produces 75 HP and 180 Nm of torque, and 1.
These negative-tone resists can be used with standard spin-on deposition coating equipment to produce thin films ranging in thickness from 30 nm to 180 nm in a single coat.
For sodium dodecylsulfate and butyl acrylate at 20% dispersed phase, it spans a range from 180 nm (0.
The 75bhp turbo-charged engine has a maximum torque of 180 Nm at just 2000rpm while fuel consumption of more than 58mpg can be expected on the combined cycle.
As design teams move from 180 nm to smaller geometries to provide faster and denser memories, leakage current and power consumption become a critical concern.
Clean Rooms of Mikron have modern manufacturing equipment for producing ICs based on 180 nm EEPROM technologies on 8" silicon wafers.