 Shares of Skyworks Solutions Inc. and Silicon Laboratories Inc. rose in the extended session Thursday after Skyworks announced it has agreed to buy Silicon Labs infrastructure and automotive business in an all-cash deal valued at 2.75 billion. The deal will accelerate Skyworks expansion into the industrys most important growth segments, including electric and hybrid vehicles, 5G wireless infrastructure, smart-home applications and other areas, a combined market opportunity approaching 20 billion a year, Skyworks said. 