The demise of Silicon Valley Bank will spread ripples throughout America’s economy.Silicon Valley Bank’s main focus was funding technology startups, according to CNBC. Although the Federal Deposit Insurance Corp. insures up to $250,000 per client deposit, CNBC said the FDIC’s protection has limited impact because most of its customers were businesses.As of December, about 95 percent of the deposits at Silicon Valley Bank were not insured, Securities and Exchange filings said.That’s bad news for companies like the TV streaming company Roku, which had $487 million in Silicon Valley Bank, most of which is not insured, according to The New York...