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Consider the following statements with reference to the semiconductor fabrication:
1. It is a process in which raw silicon wafers are turned into Integrated Circuits (ICs).
2. It uses photolithography technology which enables the creation of intricate circuitry.
Which of the statements given above is/are correct?
- a)1 only
- b)2 only
- c)Both 1 and 2
- d)Neither 1 nor 2
Correct answer is option 'C'. Can you explain this answer?
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Most Upvoted Answer
Consider the following statements with reference to the semiconductor ...
Recently, the Union Cabinet approved the country's first semiconductor fab to be made by the Tata Group in collaboration with Powerchip Taiwan.
- A semiconductor fab -- short for fabrication in which raw silicon wafers are turned into Integrated Circuits (ICs).
- The process includes creating intricate patterns on the wafer using light and chemicals, depositing different materials to form components, and etching away unwanted materials.
- This results in the formation of transistors, interconnects, and other elements that make up a semiconductor device.
- Fabrication is a complex and precise process that requires specialized equipment and expertise.
- A semiconductor fab facility always includes a clean room because its environment is carefully controlled to eliminate dust and vibrations and to keep the temperature and humidity within a specific narrow range.
- Contamination can enter the fab environment through external sources, resulting in damages to products that can affect overall yield.
What kind of technology is used in fabs?
- Photolithography:
- It is a crucial step in semiconductor fabrication where patterns are transferred onto silicon wafers.
- A photosensitive material, called photoresist, is applied to the wafer and exposed to light through a mask.
- The exposed areas are chemically etched, creating the desired pattern. This process enables the precise definition of features on the wafer, enabling the creation of intricate circuitry.
Hence both statements are correct.
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Consider the following statements with reference to the semiconductor ...
Explanation:
1. Raw Silicon Wafers to Integrated Circuits:
- Semiconductor fabrication is indeed a process where raw silicon wafers are transformed into Integrated Circuits (ICs).
- The process involves various steps such as deposition, etching, doping, and lithography to create the intricate circuitry on the silicon wafers.
2. Photolithography Technology:
- Photolithography is a key technology used in semiconductor fabrication.
- It involves transferring a pattern from a photomask to a light-sensitive chemical photoresist on the substrate, enabling the creation of intricate circuitry on the silicon wafers.
- This technology allows for the precise patterning required for the fabrication of ICs.
Therefore, both statements are correct. Semiconductor fabrication is a complex process that involves turning raw silicon wafers into Integrated Circuits using technologies like photolithography to create intricate circuitry.
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