Nvidia, the dominant player in chips for AI models, said it will produce as much as half a trillion dollars’ worth of AI infrastructure in the U.S. over the next four years through manufacturing partnerships.

Production of Nvidia’s latest generation AI chip, known as Blackwell, has begun at Taiwan Semiconductor Manufacturing Co.’s new plant in Phoenix. Santa-Clara-based Nvidia is also building supercomputer manufacturing plants in Texas with Foxconn and Wistron, and partnering with Amkor Technology and Siliconware Precision Industries Co. for packaging and testing operations in Arizona, the company said in a statement Monday. “Mass production” is expected to ramp up in the next 12 to 15 months.

Electronics players around the world, including chipmakers, are reeling from shifting new tariff policies from the Trump administration. Over the weekend, President Donald Trump pledged he will still apply tariffs to phones, computers and popular consumer electronics, downplaying an exemption issued on Friday as just a procedural step in his overall push to remake U.S. trade.

Pfizer ends obesity pill venture

Pfizer is ending the development of its potential once-daily pill treatment for obesity before venturing into the biggest and most expensive level of clinical testing.

The drugmaker said Monday that it would stop studying danuglipron after a participant in one of its trials experienced a possible drug-induced liver injury that ended once the person stopped taking the treatment.

The once-daily version of the pill was in early-stage testing, with researchers trying to figure out the best dose for patients, a spokeswoman said. The company intended to move the drug into late-stage testing, which is generally the last phase of development before a company submits the potential treatment to government regulators for approval.

A company official said in a statement that Pfizer still plans to develop other potential obesity treatments in earlier stages of testing.

Intel selling 51% Altera stake

Intel Corp. has agreed to sell a 51% stake in its programmable chips unit Altera to Silver Lake Management, making good on plans to start spinning off non-core assets.

The transaction values Altera at $8.75 billion, according to a statement on Monday, about half what Intel paid for it a decade ago. Intel will continue to hold a 49% stake in the business. The deal is expected to close in the second half of 2025. Bloomberg reported previously on the talks between the two companies.

Intel will receive about $3.4 billion in cash from Silver Lake as part of the deal, according to people familiar with the matter, who asked not to be identified because the matter is private.

Altera will be run by Raghib Hussain, replacing Sandra Rivera as CEO.

Compiled from Bloomberg and Associated Press reports.