Semiconductor Semiconductor fabs overview The semiconductor manufacturing industry is a rapidly growing industry. In 2005, the industry value was estimated around $285 billion [finance.yahoo.com]. As the use of electronics pervades more into everyday life in the form of computers, cell-phones etc., there is immense pressure on the semiconductor manufacturers to increase product variety and reduce delivery times. Due to rapid development, the industry is moving towards fully automated manufacturing systems. High volumes and increasing product variety make building to demand a complex proposition. The manufacturing plant must be flexible. Equally important is an effective planning and scheduling system to manage the complexity. In addition to the actual complexity of the manufacturing process in semiconductor manufacturing, there is a substantial amount of investment involved. It typically costs around $2-$3 billion to set up a 300mm wafer fabrication unit and around $1-$2 billion investment to set up a 200mm unit. The wafer fabrication facilities are the state-of-the-art; highly automated facilities replete with their own power plants, water and air purification systems. The facilities typically consist of around 75 to100 different tool types with 300 pieces of equipment. These tools themselves are highly sophisticated and expensive with a particular tool costing around a million dollars. Depending on the targeted market, these facilities are loaded with differing variety of products. A high-volume, low-mix facility would have around 10 different products at a particular time but a high-volume, high-mix facility like a foundry can have hundreds of products getting built in a facility at a time. Typically, 300mm wafer fabrication units have about 500-600 wafer starts per day. There has been a steady historical progress in the basic units which undergo the semiconductor manufacturing process. The diameter of the largest silicon wafer in semiconductor manufacturing has increased linearly at about 7.5 mm/year since the 1960s in the following sequence of diameters: 10, 12.5, 22, 25, 31.25, 50, 56.25, 75, 81.25, 100, 125, 150, 200 and 300 mm. The line or feature widths on each semiconductor chips have decreased from 10micron in the 1970 s to 90nm and 65nm today. Semiconductor cluster tools Semiconductor cluster tools are typical tools used in semiconductor manufacturing. A semiconductor cluster tool is comprised of several different wafer processing modules that are managed by a centralized control system. A wafer handling robot interacts with the processing modules/chambers for transport. The semiconductor cluster tool control system then manages the robot for the wafer s travel between each chamber. The type of chambers used can include process, transport, buffer and cassette modules. Cassette modules are used to store both processed and unprocessed wafers. Process modules perform manufacturing techniques such as deposition and etching Transfer modules move the wafers between the process and cassette modules. Semiconductor cluster tools allow wafers to be processed in a closed environment with little operator interaction.
Optessa Inc. is Edmonton-based company (Alberta, Canada) with a phone number 7804318426. Our data show that the company is located at the address: 905 5555 Calgary Trail NW. The company has a web site: www.optessa.com.
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