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What materials are commonly used as substrates in chip manufacturing?A. SiliconB. Gallium arsenideC. GermaniumD. CopperE. Aluminum

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The materials commonly used as substrates in chip manufacturing include:

A. Silicon: This is the most commonly used material in chip manufacturing due to its excellent semiconductor properties. Silicon is abundant and relatively inexpensive, making it a popular choice for many manufacturers.

B. Gallium Arsenide: This material is used in high-speed electronic devices. It has a higher electron mobility than silicon, allowing devices to operate at higher frequencies.

C. Germanium: This material was used in the early days of semiconductor technology. It has largely been replaced by silicon, but is still used in some applications due to its superior electron mobility.

D. Copper: This material is used in the interconnects of a chip. Copper has lower resistance than aluminum, which was previously used, allowing for faster signal transmission.

E. Aluminum: This material was widely used in the interconnects of a chip before being largely replaced by copper. It is still used in some applications due to its lower cost and ease of use.

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