Sehat Sutardja's wife was Weili Dai, his co-founder at Marvell Technology. They met at UC Berkeley, a meeting the couple remember as taking place in a campus elevator, and married in 1985. They had two sons.
Dai was born in Shanghai and moved to San Francisco at 17 with little English. She spent a year at Abraham Lincoln High School before studying computer science at Berkeley. Sutardja was born in Jakarta in 1961 and went to the United States in 1980.
They founded Marvell in 1995 with Sehat's brother Pantas. Dai has said it was planned around her kitchen table. Seagate was the first customer, and Marvell listed on Nasdaq on 27 June 2000, selling 6 million shares at $15 and raising $90 million.
In April 2016, after investor pressure and an internal investigation, Sutardja and Dai both left the company. Sutardja was removed as CEO on 4 April 2016. In 2021 the two co-founded Silicon Box, a Singapore-based chiplet packaging company, with Byung Joon Han.
Sutardja died on 18 September 2024. He had been a board member and the second-largest shareholder of Alphawave IP Group, and Dai inherited his stake and joined that board on an interim basis.