Why the world is facing a shortage of computer chips
1. Why are there shortages of chips?
A lot, but not all, of the disruption can be tied to the pandemic. Here are some factors:
* The stay-at-home era caused by the coronavirus pushed demand beyond levels projected by chipmakers. Lockdowns spurred growth in sales of laptops to its highest in a decade. Home-networking gear, webcams and monitors were snapped up as office work moved out of the office, and Chromebooks as school left school. Sales also jumped for home appliances from TVs to air purifiers, all of which now come with customized chips.
* Uncertainties caused by the pandemic led to sharp swings in orders. Automakers that cut back drastically in the early days of the outbreak underestimated how quickly sales would rebound. They rushed late last year to re-up orders, only to get turned away because chipmakers are stretched supplying smartphone giants like Apple Inc.
* Stockpiling: TSMC executives said in recent earnings calls that customers have been accumulating more inventory than usual as a hedge. PC makers began warning about tight supply of semiconductors early in 2020. Then by mid-year, Huawei Technologies Co. — a major smartphone and networking gear maker — began hoarding components to ensure its survival from U.S. sanctions that threatened to cut it off from its primary suppliers. Other Chinese companies followed suit, and the country’s imports of chips climbed to almost $380 billion in 2020 — making up almost a fifth of the country’s overall imports for the year.
* Weather: A bitter February cold snap in Texas led to power outages that shut semiconductor plants clustered around Austin; Samsung’s still weren’t fully back online by mid-March.
2. What’s the upshot?
Some businesses are getting whacked. Chip shortages are expected to wipe out $61 billion of sales for automakers alone this year and delay the production of a million vehicles in the March quarter. Not only cars but possibly a broad spectrum of chip-heavy products from phones to gaming consoles could see shortages or price hikes. NXP Semiconductors NV and Infineon Technologies AG both indicated that supply constraints have spread. Samsung said in March it expects the “serious imbalance” to pose a problem to its business this year.
3. Who are the big players?
Advanced logic chips grab the headlines as the most expensive and complex pieces of silicon that give computers and smartphones their intelligence. When you hear about Apple or Qualcomm or Nvidia chips, those companies are actually just the designers of the semiconductors, which are made in factories called foundries.
* TSMC leads the industry in production capabilities and everyone now beats a path to its doorstep to get the best chips made in its Taiwan facilities. The company’s share of the global foundry market is larger than its next three competitors combined.
* Samsung, overall a bigger chipmaker because of its dominance in memory chips, is trying to muscle in on that goldmine and is improving its production technology to be widely rated as the best option behind TSMC. Companies such as Qualcomm Inc. and Nvidia Corp. have increasingly turned to Samsung.
* Intel Corp., the last U.S. champion in the field, still has more revenue than any other chipmaker but its market is heavily concentrated in computer processors. Production delays have made it vulnerable to rival designers that are taking share using TSMC.
* TSMC and Samsung do face smaller competitors including Globalfoundries, China’s Semiconductor Manufacturing International Corp. (SMIC) and Taiwan’s United Microelectronics Corp. But those rivals are at least two to three generations behind TSMC’s technology. Famous names such as Texas Instruments Inc., International Business Machines Corp. and Motorola have exited or given up trying to keep up with the most advanced manufacturing.
4. What’s happening in this race?
The two Asian giants are spending heavily to cement their dominance: TSMC raised its envisioned capital expenditure for 2021 to as much as $28 billion from a record $17 billion a year prior, while Samsung is earmarking about $116 billion on a decade-long project to catch its Taiwanese arch-rival. But China is pushing hard to catch up. It’s aimed for years to reduce its reliance on US. technology, particularly in chips. The Trump administration’s efforts to curb China’s technology giants — by barring Huawei’s access to chips and and discouraging American investment in players like SMIC and Xiaomi Corp. — crystallized those fears. But the country has a long way to go. For instance, in the automotive sector, China has developed a large number of chip design companies in recent years but they’re still not able to make the advanced chips needed for today’s cars. In March, China again pledged to boost spending and drive research into cutting-edge chips as part of its new five-year economic blueprint. While specifics won’t emerge for months, SMIC has already announced plans for a $2.35 billion plant with funding from the government of Shenzhen. It aims to begin production by 2022 and eventually produce 40,000 12-inch wafers a month. (In 2019, TSMC shipped about 10 million advanced 12-inch wafers.)
5. How about elsewhere?
Given the difficulty in developing sophisticated chipmaking capabilities, governments are dangling incentives to anyone who will build or expand advanced facilities in their backyards. President Joe Biden in February ordered a government-wide supply chain review for critical goods including chips. His administration, which is putting together a longer-term plan for chip supply, will play a key role in formulating tax incentives for a proposed $12 billion TSMC plant in Arizona and a $17 billion one Samsung is eyeing, possibly in Texas. And the European Union is considering building an advanced semiconductor factory in Europe with potential assistance from TSMC and Samsung, as part of a goal to double chip production to 20% of the global market by 2030.
6. Why is it so hard to compete on chips?
Chipmaking is a high-volume business that calls for incredible precision, along with making huge long-term bets in a field subject to rapid change. Chips are made in plants that cost billions to build and equip. They have to run flat-out 24/7 to recoup their investment. But it’s not just that. Yield, or the amount of good chips per batch, determines success or failure. It takes years of know-how and experience to get a yield of 90% out of the complex photolithographic process used to make chips. Imagine Ford Motor Co. being happy to throw away one car in 10. But chipmakers, who make millions of chips in a process that takes three to four months to complete, are successful if they’re hitting that mark. A foundry gobbles up enormous amounts of water and electricity and is vulnerable to even the tiniest disruptions (whether from dust particles or distant earthquakes).
7. Who benefits from the chip wars?
Even small improvements in semiconductors can deliver substantial savings in energy and cost when multiplied across the full scale of something like Amazon Web Services Inc. As 5G mobile networks proliferate and push up demand for data-heavy video and game streaming and more people work from home, the need for newer, more power-efficient silicon is only going to grow. One way to measure the sophistication of a chip is so-called line-widths, or the distance between circuits. The current standard in advanced chips is 5 nanometers, or billionths of a meter, about a hundred-thousandth of the width of a strand of hair. TSMC and Samsung are working on 3nm mass production by 2022. The rise of artificial intelligence is another force pushing chipmakers to innovate: AI relies on massive data processing. More efficient or power-saving designs are also becoming a critical consideration given the so-called internet of things — a universe of smart or connected devices from the beefiest phones to the most common light switches and refrigerators — is expected to swell usage of chips exponentially in coming years.
8. How does Taiwan fit into all this?
The island democracy has emerged as an industry linchpin thanks to TSMC and an entire ecosystem geared toward high-end electronics. U.S., European and Japanese automakers are lobbying their governments for help navigating the chip crunch, with Taiwan and TSMC being asked to step in. Those pleas illustrate how TSMC’s chip-making skills have handed Taiwan political and economic leverage in a world where technology is being enlisted in the great power rivalry between the U.S. and China — a standoff unlikely to ease under the Biden administration.
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