Slaughter and May, Paul Hastings and Wilson Sonsini Goodrich & Rosati have scored key roles on Samsung's $310m (£199m) acquisition of British tech company CSR's mobile-chip division.

Slaughters advised CSR on the deal, with a team comprising corporate finance partner William Underhill, IT and outsourcing head Rob Sumroy and IP and IT associate Brett Sherrard, as well as tax partner Tony Beare, pensions partner Roland Doughty, real estate partner David Waterfield and competition partner Michael Rowe.

Underhill (pictured) said: "It was an intensive transaction, with a demanding timetable and significant complexities concerning the IP licensing and transfer issues, but we were pleased that our client's objectives were met successfully."

The transaction includes patents for CSR's developing wi-fi, Bluetooth and location technology. Around 310 employees in CSR's tech and handset team are expected to transfer to the South Korean company, with the deal expected to close later this year.

Silicon Valley firm Wilson Sonsini also advised the UK company on the acquisition, with a team led by technology M&A partner Selwyn Goldberg, alongside Korean law firm Shin & Kim, with M&A partner Hyuk Sik Shin in the lead role.

Meanwhile, US firm Paul Hastings advised Samsung with an M&A team led by Hong Kong-based corporate partner Daniel Kim, Palo Alto-based corporate partner Matthew Berger and London corporate partner Garrett Hayes.

Slaughters and Wilson Sonsini previously advised CSR on its proposed $679m (£434m) merger with US company Zoran Corporation last year, while Paul Hastings acted for Samsung in June when the electronics giant took over Swedish wi-fi tech company Nanoradio AB.