Diodes Inc. has purchased the assets of a Redwood City semiconductor company. Westlake Village-based Diodes paid $8 million for the patents, technology, trademarks and net working capital of APD Semiconductor, a privately held semiconductor company. The acquisition fits with the company’s strategy of strengthening its technology leadership and expanding product capabilities, said Diodes President and CEO Keh-Shew Lu, in a statement released Tuesday. “With APD’s wafer technology and Diode’s world-class packaging capabilities, we will be able to offer a far superior product to the discrete semiconductor market in respect to both cost and performance,” Lu said. Revenue for APD is expected to be $2 million in 2006, the company said. APD has a design center in Seattle and a sales, application and administration center in Taiwan.