Synopsys, a key Silicon Valley provider to the chip trade, mentioned on Tuesday that it had agreed to pay $35 billion for Ansys, a Pennsylvania firm that makes software program used to simulate and analyze product designs for electronics producers, automotive makers, protection contractors and others.

The deal, which was struck for a mix of money and inventory, follows a $14 billion deal this month by Hewlett Packard Enterprise to purchase Juniper Networks, uniting an enormous laptop maker with a specialist in networking gear. It was the newest signal of adjusting instances within the know-how sector, which is experiencing sluggish gross sales for a lot of forms of {hardware} and a frenzy over synthetic intelligence.

A.I. has prompted heavy spending in knowledge facilities and has additionally led many big web corporations to start out designing their very own chips. Some carmakers, which have grow to be a serious new supply of chip demand amid pressures to impress extra autos and add driver-assistance options, are additionally designing their very own chips.

Synopsys is a pioneer in software program that simulates and verifies chip designs, step by step including merchandise to assist design extra full digital methods. It has labored with Ansys since 2017 to win extra prospects for such duties.

Sassine Ghazi, the chief government of Synopsys, mentioned the need to purchase Ansys was prompted by the necessity to transfer even quicker to ship software program that may simulate {the electrical} and bodily interactions of a number of parts in methods.

“The worlds of semiconductor design and physical simulation and analysis must come together,” he mentioned in a convention name with analysts.

Mr. Ghazi assumed his title in the beginning of this 12 months from Aart de Geus, who co-founded Synopsys in 1986 and stays government chairman.

His firm’s closest rival for many years has been Cadence Design Systems, one other Silicon Valley firm. The Wall Street Journal earlier reported talks between Synopsys and Ansys and mentioned curiosity from Cadence in Ansys had helped put that firm in play to be acquired.

A Cadence spokesman declined to remark.

Ansys was fashioned in 1970 by John Swanson, a mechanical engineer who developed software program within the Nineteen Sixties for Westinghouse to assist analyze stresses on nuclear reactors.

The firm added different merchandise over time and have become a serious participant in engineering software program. Ajei Gopal, its chief government since 2017, was previously an working companion at Silver Lake, a personal fairness agency.

Synopsys mentioned the fee to Ansys shareholders had an implied worth of $390.19 a share, primarily based on Synopsys’ share value on Dec. 21, the day earlier than The Journal reported deal talks. That value represents a 35 % premium to the typical value of Ansys shares on the 60 days as much as that date, Synopsys mentioned.

Some Synopsys shareholders opposed the deal, analysts mentioned, partially as a result of Ansys had not too long ago posted a slower income development price than Synopsys. But Synopsys predicted the mix would speed up income development and swiftly start contributing to larger earnings.

The corporations predicted the deal would shut within the first half of 2025.