SAN FRANCISCO — Qualcomm was co-founded in 1985 by Irwin Jacobs, who took the company public and made it a mobile chips behemoth. He later passed the baton to his son Paul.

Now Paul Jacobs is trying to make sure that Qualcomm stays a family business — but he will have to do it from outside the company.

On Friday, Qualcomm said Mr. Jacobs, a company director, would not be renominated for election at its annual shareholder meeting next Friday. The company’s board said it had reached that decision because Mr. Jacobs wanted to explore making his own bid for Qualcomm. He confirmed late Friday that he wanted to take the company private.

The split, which means no member of the Jacobs family will be involved at the top echelons of Qualcomm for the first time in 33 years, was not friendly. In a statement, Mr. Jacobs said of the directors that it was “unfortunate and disappointing they are attempting to remove me from the board at this time.”