Human Interface solutions firm Goodix is to double the size of its marketing, sales and R&D operations in Silicon Valley and Southern California during the coming year due to expected rises in demand.The firm says the added resources will help the company's customers accelerate their development initiatives, many of which are based on Goodix's world's first under the cover fingerprint sensor technology (Invisible Fingerprint Sensor).”We are excited about this opportunity to accelerate our strong momentum here in the world's leading economy,” said David Zhang, founder and CEO of Goodix. “We will be able to work more closely with top companies to bring the latest Goodix technologies in fingerprint sensing and other mobile features to sophisticated mobile users”.Goodix sees strong demand across its entire touch, display, biometric and mobile payment portfolios, including solutions that integrate fingerprint sensors into touchscreens to simplify mobile device and data security.The “invisible” sensor eliminates a separate fingerprint sensor module by integrating a sensor directly onto the back of a touch panel.In July, Digitimes Research reported that Goodix will receive fingerprint sensor solution orders for mid-range smartphones from China brand vendors in the second half of 2015 thanks to its glass-covered fingerprint sensor technology.