SOUTH SAN FRANCISCO, Calif.–(BUSINESS WIRE)–Genentech, a member of the Roche Group (SIX: RO, ROP; OTCQX: RHHBY), today broke ground on a $750 million expansion of its manufacturing facility in Hillsboro, Oregon, advancing plans announced in August to increase capacity for advanced drug delivery devices and to strengthen the company’s United States manufacturing capabilities. The event marks the start of construction for the 211,000-square-feet expansion, doubling the size of the existing site