Thus Silicon, which is more abundant and less expensive than Germanium became the standard material and is still being used today and for the foreseable future. Silicon Benefits: Low Reverse Leakage Current. Good Temperature Stability.

Silicon material has been widely used in semiconductor device fabrication because of its low cost and its producibility of high quality silicon dioxide needed for impurity diffusion and surface passivation processes.

The structure of Germanium crystals will be destroyed at higher temperature. However, Silicon crystals are not easily damaged by excess heat. Peak Inverse Voltage ratings of Silicon diodes are greater than Germanium diodes. Si is less expensive due to the greater abundance of element.

Ability to withstand at high temperature: silicon crystals have capability to withstand at higher temperature compare to germanium crystals . So if leakage current is produced in SCR it heats up the device then silicon crystals can withstand but not germanium crystals.

Silicon does not get damaged easily due to excess heat. Variation of Ic0 with temperature is not much hence thermal stability is maintained. Also reverse voltage of silicon diode is higher. Therefore silicon is the most used material for manufacturing diodes.

Today, germanium is mined primarily from sphalerite (the primary ore of zinc), though germanium is also recovered commercially from silver, lead, and copper ores. Elemental germanium is used as a semiconductor in transistors and various other electronic devices.

Some people use germanium for osteoarthritis, rheumatoid arthritis (RA), pain, weak bones (osteoporosis), low energy, and AIDS. Other uses include heavy metal poisoning, including mercury and cadmium poisoning; depression; cancer; food allergies; and yeast and viral infections.

Silicon Valley is called Silicon Valley because of sand. Many companies manufacturing computer chips (like Intel) were either operating or headquartered throughout the region, now known as Silicon Valley back, in 1971. The first ingredient in the manufacturing process of computer chips happens to be – sand.

Part 1: Who Owns Silicon Valley? Stanford University, Apple, Google, Cisco, Intel and several real estate companies are among Silicon Valley’s top property owners according to an analysis of Santa Clara County assessor records for 2018.

Turns out, the southern region of the San Francisco Bay now known as Silicon Valley used to have a different name entirely. In the early 1900s, it was called the “Valley of Heart’s Delight,” a name inspired by the region’s myriad orchards and acres filled with ripening fruit.

Bangalore

City of Ahmedabad

Bengaluru is silicon city of India because, the Silicon Valley of India is a nickname of the Indian city of Bangalore. As Bangalore is on the Mysore Plateau, the area is also sometimes referred to as “Silicon Plateau”.

Indian Cities and Their Nicknames

Jaipur

Madurai