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Renesas shuts down semiconductor factories in Japan after earthquake

TOKYO – Renesas Electronics Corp., a key semiconductor manufacturer for the global automotive industry, suspended three plants in Japan after a major earthquake struck the Northeast of the country causing a tsunami, causing power outages and disrupting transportation.

Renesas said all three plants, the Naka, Takasaki and Yonezawa factories, were located near the quake zone, which was in the middle of the Pacific coast from Sendai city. A magnitude 7.4 shock shocked cities as distant as Tokyo when it struck shortly after 11:30 PM. March 16

Any long-term outage in Renesas production could impact the global auto industry, which is already struggling with a worldwide semiconductor shortage that has hit production and sales. All three affected plants produce chips for the automotive sector.

The quake struck the same area as the epicenter of the massive 9.0 tsunami disaster that shook the country almost exactly 11 years ago, on March 11, 2011. The quake killed more than 19,000 people and shut down Renesas’ Naka factory. for months.

During the most recent natural disaster, Renesas said on March 17 that electricity was restored at two power plants that lost power overnight. The company is currently assessing the impact on equipment and products, as well as on facility safety and the condition of clean rooms.

Renesas said he was unable to say when production could resume at the Naka and Takasaki factories. The company said it has partially resumed production of some test lines at its Yonezawa facility.

The Naka and Yonezawa factories produce microcontrollers for automotive and industrial applications. The Takasaki plant produces so-called PMOS chips used to convert AC-DC electric currents.

The power plants turned off automatically when there was a power cut during the night. Even if there is no damage, it will take days for the facilities to completely restart, a spokesman for Renesas said.

Only one worker was injured with a minor bruise.

Honda Motor Co. and Nissan Motor Co. reported that their facilities were operating normally the morning after the quake. Toyota said it had suspended morning shift work at two assembly plants near the quake zone for security checks and would later decide when to resume.

Three people died and 170 were injured in the night’s earthquake, Japanese public broadcaster NHK said. This triggered a small tsunami and even derailed the famous Japanese missile train. Electrical failures reached the power grid as far as Tokyo, where buildings shook and trains stopped.

The material most commonly used in semiconductors is silicon (chemical symbol = Si). Silicon is the second most abundant element on earth after oxygen.

How do holes carry charge?

In an applied electric field, electrons move in one direction, corresponding to a hole moving in the other. If a hole connects to a neutral atom, that atom loses an electron and becomes positive. On the same subject : Russia’s sanctions on Ukraine exacerbate chip shortages as the US, Europe race China. Therefore, the hole is assumed to have a positive charge + e, exactly opposite to the charge of the electron.

How does the hole conduct electricity? Both the free electron and the hole contribute to the conduction in the crystal lattice. This means that the electron is free until it falls into the hole. This is called recombination. If an external electric field is applied to the semiconductor, the electrons and holes will conduct in opposite directions.

Do holes have charge?

In physics, a hole carries an electric charge with a positive charge, equal in magnitude, but with the opposite polarity to that of the electron. This may interest you : What is a Compound Semiconductor. Holes and electrons are two types of charge carriers responsible for the current in semiconductor materials.

How do holes act as positive charge carriers?

The holes are basically created when the electron moves away from its place. Removing the electron means removing the -ve charge. Therefore, a positive charge will arise.

Is hole a positron?

The important thing to remember is that the hole is not a positron, which is a fundamental particle with exactly the same characteristics as an electron but with the opposite charge.

Why are holes positively charged?

Holes are considered positively charged because of the relationship between their speed and the electric current: when they move to the right, the current points to the right. Theoretically, it is only possible to work with electrons: electrons from the conduction band and electrons from the valence band.

What is the charge of a hole?

Unlike the electron, which has a negative charge, holes have a positive charge that is equal in size to, but opposite to that of the electron. See the article : How could Russia’s war against Ukraine be exacerbated by the lack of chips. Holes can sometimes be confusing because they are not physical particles like electrons, but rather the lack of an electron in the atom.

Is hole a proton?

When we say “no electrons” we really mean “initially neutral atom and then the electron is removed, leaving an exposed, unremoved proton; positive ion “. The holes are actually the unremoved protons of the silicon lattice. They are really positively charged particles.

Does holes have positive charge?

Conclusion: The hole is a positive mass and positive charge quasi-particle.

Is hole a positron?

The important thing to remember is that the hole is not a positron, which is a fundamental particle with exactly the same characteristics as an electron but with the opposite charge.

How are holes charge carriers?

In addition to electrons and hypothetical positively charged particles, holes are also charge carriers. The holes are the empty orbitals of the valence electrons and as such they represent the shortage of electrons that can move freely in the material.

What is the charge of mobile charge carriers of holes?

One of them are electrons that carry a negative electric charge. Moreover, it is convenient to treat the vacancies traveling in the electron population (holes) from the valence band as a second type of charge carrier that carries a positive charge equal in size to the electron.

How do holes act as positive charge carriers?

The holes are basically created when the electron moves away from its place. Removing the electron means removing the -ve charge. Therefore, a positive charge will arise.

Are holes positive charge carriers?

Unlike the electron, which has a negative charge, holes have a positive charge that is equal in size to, but opposite to that of the electron.

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How do I know my IC chip?

How do I know my IC chip?

All IC chips have a two-piece serial number. The first part of the serial number contains information about the manufacturer. The second part of the serial number indicates the technical specifications of the integrated circuit. Many IC manufacturers produce identical chips with the same technical specifications.

How to identify my IC? If the markings on the chip are still legible, it is possible to mark:

  • If there are clear part numbers on the chip, the first letters are called the IC Company Prefix or the Manufacturer Prefix. …
  • If there is a logo on the chip, it is relatively easy to find the manufacturer from their logo.

How are IC chips numbered?

By convention, the pins on an IC are numbered counterclockwise starting with the top left pin closest to the timing mark. For example, with a timing notch positioning the chip at 12 o’clock, the pins of the 14-pin IC are numbered 1 through 7 on the left and 8 through 14 on the right.

How do you identify the pin numbers on an IC package?

DIP IC Pin Numbering On a DIP IC, a semicircle will show which end the IC pin 1 is. Pin 1 can also be marked with a dot next to pin 1. With a dot or semi-circle to the left, DIP IC pin 1 will always be the lower left pin. The consecutive pins are numbered to the right of pin 1.

How are IC chips named?

Many IC names are rather arbitrary: typically a prefix to indicate the manufacturer or series and number. However, with this particular circuit (and discrete logic in general) the name says a lot. “SN” is a TI-specific prefix. “74” represents the 7400 series logical devices.

What does IC 74 mean?

Two digits, where “74” is the commercial temperature range and “54” is the military temperature range. Historically, “64” stood for a short burst with an intermediate “industrial” temperature range.

How do you identify the pin numbers on an IC package?

DIP IC Pin Numbering On a DIP IC, a semicircle will show which end the IC pin 1 is. Pin 1 can also be marked with a dot next to pin 1. With a dot or semi-circle to the left, DIP IC pin 1 will always be the lower left pin. The consecutive pins are numbered to the right of pin 1.

What is pin diagram of IC?

The pins are numbered counterclockwise around the IC (chip), starting near the notch or dot. The diagrams show the numbering for 8-pin and 14-pin ICs, but the principle is the same for all sizes.

How do I read IC pinout?

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How many types of IC chips are there?

There are about 600 types of standard logic circuits, ranging from basic integrated circuits to highly functional arithmetic logic units. There are two different implementation types: TTL and CMOS. Transistor-transistor logic: The main circuit is made up of bipolar transistors. These chips run on a 5V power supply.

What is the most popular IC? The 741 and LM324 op-amps It was first introduced in 1968 and is still one of the most widely used integrated circuits ever produced. The 741 is one of those ICs that require both positive and negative voltage. The LM324 was introduced in 1972.

How many types of IC are there?

There are two main types of integrated circuits: digital integrated circuits or analog integrated circuits.

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How long will chip shortage last?

How long will chip shortage last?

No one can accurately predict how quickly the semiconductor chip shortage will end. But experts seem to agree that the shortage will continue into the second half of 2022. Some car directors estimate that production will not return to pre-pandemic levels until 2023.

Will the chip shortage end soon? However, recovery may be gradual. Pat Gelsinger, CEO of Intel, the chip maker, told reporters last week that “the constraints will continue throughout 2022 and 2023, with gradual improvements over that period.” The gradual improvement means that car buyers should not expect prices to fall rapidly.

Will the chip shortage end in 2023?

“The surge in demand continues.” Intel CEO Pat Gelsinger reiterated that the global chip shortage is expected to last until 2023. This is despite the fact that manufacturers are in a rush to increase production to meet demand.

Will the car chip shortage end?

Nissan’s COO Ashwani Gupta told Reuters the shortage would continue until at least the first half of 2022. “It will take a little longer to resume normal operations.

How long will the microchip shortage last?

However, experts seem to agree that the shortage will continue into the second half of 2022. Some auto industry executives estimate that production will not return to pre-pandemic levels until 2023. Chip makers say chip production can take up to a year or two. in order to meet the current demand.

Is the chip shortage getting any better?

The chip shortage is still a significant factor for the industry in 2022. Throughout the year, Ford expects an improvement in the chip situation and plans to ship 10 to 15% more cars than in 2021. to approximately 2.1 million or 2.2 million vehicles.

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