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The Tesla Model 3 is driving the chip industry’s transition into the post-silicon age

(Credit: Tesla China)

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The winds are changing in the global chip industry, and the Tesla Model 3 may very well be one of the catalysts for the impending shift. Tesla became one of the first automakers to use silicon carbide (SiC) chips in a mass-produced vehicle. And by incorporating SiC chips into the Model 3, the American automaker ended up giving the material some momentum in the EV supply chain 

Tesla’s use of silicon carbide in the Model 3 was a bold move, considering that silicon has long been the material of choice in the semiconductor industry. Since replacing germanium crystals in the 1960s, silicon has effectively ushered in a golden age of semiconductors. But today, other materials such as silicon carbide have emerged to challenge silicon for its throne. 

Silicon carbide contains silicon and carbon, and with chemical bonds that are stronger than those in plain silicon, it holds the title of the world’s third-hardest substance. As noted in a Nikkei Asia report, processing silicon carbide requires advanced technology, but its stability, among its other properties, allows chipmakers to cut energy loss by more than half compared to conventional silicon wafers. SiC chips are also good at dissipating heat, paving the way for smaller inverters. 

Masayoshi Yamamoto, a professor at Nagoya University in Japan, noted that these advantages are well represented in the Tesla Model 3’s design. “The Model 3 has an air resistance factor as low as a sports car’s. Scaling down inverters enabled its streamlined design,” Yamamoto said. 

The runaway success of the Tesla Model 3 effectively sent shockwaves in the chip industry. And these shockwaves have started to inspire a wave of commitments on silicon carbide chips. In June alone, German chipmaker Infineon Technologies unveiled an SiC module for EV inverters. Hyundai later announced that these Infineon-made SiC chips would be used in its next-generation electric cars. The South Korean automaker added that by using Infineon’s SiC chips, its EVs could see a 5% improvement in range compared to vehicles equipped with plain silicon chips. 

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Kazuhide Ino, chief strategy officer at Japanese chipmaker Rohm, noted that at this stage, makers of silicon carbide chips have reached a point where they are already competing with each other. “Thus far, chipmakers have worked together to build up the silicon carbide market, but we’ve reached the stage of competing with each other,” he said. 

French market research firm Yole Developpement noted in a forecast that the market for silicon carbide chips would likely grow sixfold by 2026 compared to 2020. This should make the SiC chip segment into a $4.48 billion market. A lot of this would rely on whether production costs for SiC chips could be reduced adequately, however, as SiC chips are still more expensive than conventional silicon chips today. That being said, the gap between silicon and SiC chips has been narrowing. Five years ago, SiC chips were about 10X more expensive than traditional silicon. Today, they’re only twice as expensive. 

*Quotes courtesy of Nikkei Asia.

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Simon is an experienced automotive reporter with a passion for electric cars and clean energy. Fascinated by the world envisioned by Elon Musk, he hopes to make it to Mars (at least as a tourist) someday. For stories or tips--or even to just say a simple hello--send a message to his email, simon@teslarati.com or his handle on X, @ResidentSponge.

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Tesla Sweden faces new pressure in Sweden as Assa Abloy joins union action

The sympathy strike will block Assa Abloy’s 330 employees across six Swedish facilities from servicing or maintaining locks and gates used at Tesla Sweden’s sites.

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Credit: NicklasNilsso14/X

The labor standoff between Tesla and Sweden’s IF Metall union has widened again, this time pulling in Assa Abloy Industrial, a manufacturer of industrial doors and locks. 

IF Metall announced a new sympathy strike halting all Assa Abloy services for Tesla, set to take effect November 4, according to Dagens Arbete (DA). The move is aimed at further pressuring Tesla into signing a collective agreement after nearly two years of ongoing labor conflict.

New strike targets Tesla’s industrial operations

The sympathy strike will block Assa Abloy’s 330 employees across six Swedish facilities from servicing or maintaining locks and gates used at Tesla Sweden’s sites. IF Metall hopes the measure will disrupt Tesla’s daily operations and highlight the growing solidarity among Swedish companies.

Assa Abloy becomes the latest in a line of firms drawn into the dispute, with the Swedish Mediation Institute now logging fourteen conflict notices since September. The escalation shows that unions and partner industries are aligning to support of IF Metall’s campaign to secure a collective bargaining deal, something Tesla has consistently resisted.

IF Metall says Tesla must understand Sweden’s labor model

IF Metall chair Marie Nilsson recently reiterated her call for Tesla Sweden to reconsider its stance on organized labor, noting that Sweden’s union system differs sharply from the more adversarial model in the United States. 

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“I can certainly understand that Elon Musk and Tesla are skeptical of the trade union movement,” Nilsson said. “They have experience with American unions that operate in a completely different environment and that have to be militant in a different way.”

Nilsson emphasized that Swedish unions function cooperatively and that signing a collective agreement locally does not commit Tesla to similar deals elsewhere. “Let’s give us a chance,” she added. “It is the practical system we have here to regulate the conditions.”

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Elon Musk: Tesla autonomous driving might spread faster than any tech

The CEO noted that “hardware foundations have been laid for such a long time.”

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Credit: Tesla

Elon Musk has shared one of his most optimistic forecasts for Tesla’s self-driving rollout yet. As per the CEO, Tesla’s self-driving system could see the fastest technological adoption in history, thanks to the fleet’s capability to gain autonomous capabilities through a software update.

The CEO shared his forecast in a post on social media platform X.

Tesla’s aims to scale autonomy

Musk’s comment came as a response to industry watcher Sawyer Merritt, who posted a comparison between the geofence of Tesla’s Robotaxi network and Waymo’s service area. As can be seen in the graphic, Tesla’s Austin geofence has gotten noticeably larger compared to Waymo’s service area. 

In his response, Musk stated that “Tesla autonomous driving might spread faster than any technology ever.” He also stated that “hardware foundations have been laid for such a long time,” as a software update could unlock full autonomy “for millions of pre-existing cars in a short period of time.”

Musk’s comment bodes well for Tesla’s Robotaxi ambitions, which seem to be finally in reach with the deployment of Unsupervised FSD in vehicle factories, as well as Austin and the Bay Area. For now, however, Tesla’s Austin Robotaxis and Bay Area ride-hailing vehicles are still operated with a safety monitor in the driver’s seat. 

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Tesla’s latest Austin expansion

Tesla recently expanded its Austin Robotaxi service area this week to 243 square miles, its largest yet and nearly triple the coverage from two months ago. The move outpaces Waymo’s local service footprint, which remains at around 90 square miles.

The expansion marks Tesla’s second major Austin update since August and emphasizes its push to dominate the autonomous ride-hailing landscape. With both Tesla and Waymo racing to prove scale and reliability, Musk’s confidence suggests the real contest may be about who can move fastest once the tech flips on across Tesla’s fleet. Once that happens, Tesla would effectively be able to win the self-driving race. 

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Tesla sends clear message to Waymo with latest Austin Robotaxi move

It is the first expansion Tesla has made in Austin since the one on August 26. The company still operates in the Bay Area of California as well, referring to that program specifically as a “ride-hailing service.”

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Credit: Tesla

Tesla has sent a clear message to Waymo with its latest move to its Robotaxi program in Austin, Texas.

Tesla and Waymo are the two true leaders in autonomous ride-hailing to an extent. Tesla has what many believe is a lot of potential due to its prowess with the Supervised Full Self-Driving suite. It is also operating a driverless Robotaxi service in Austin with a “Safety Monitor” that sits in the passenger’s seat.

Tesla explains why Robotaxis now have safety monitors in the driver’s seat

The two companies have been competing heavily in the market since they both launched driverless ride-hailing services in Austin this year: Waymo’s in March and Tesla’s in June.

One of the main drivers in the competition between the two is service area size, or the geofence in which the cars will operate without a driver. In August, the two were tied with a service area of about 90 square miles (233.099 sq. km).

Tesla then expanded to about 170 square miles (440.298 sq. km) on August 26, dwarfing Waymo’s service area and expanding to freeways. Tesla’s freeway operation of the Robotaxi suite requires the Safety Monitor to be in the driver’s seat for safety reasons.

On Tuesday evening, Tesla made another move that sent a clear message to Waymo, as it expanded once again, this time to 243 square miles (629.367 sq. km).

This is according to Robotracker:

It is the first expansion Tesla has made in Austin since the one on August 26. The company still operates in the Bay Area of California as well, referring to that program specifically as a “ride-hailing service.”

Yesterday, it expanded that service to the San Jose Mineta International Airport, something it has been working on for several months.

Waymo has its own set of distinct advantages over Tesla as well, as it operates in more cities and states than the EV maker. Waymo currently has its autonomous vehicle services in Phoenix, Arizona, San Francisco, Los Angeles, Austin, and Atlanta, Georgia.

Tesla plans to have half of the U.S. population with access to the Robotaxi platform by the end of the year.

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