By Reuters Staff 2 Min Read (Reuters) -Broadcom Inc on Thursday appointed its principal accounting officer, Kirsten Spears, as chief financial officer and forecast first-quarter revenue above estimates as key client Apple Inc doubles down on 5G devices, driving demand for its chips. FILE PHOTO: A sign to the campus offices of chipmaker Broadcom Ltd is shown in Irvine, California, U.S., November 6, 2017. REUTERS/Mike Blake/File Photo Spears replaces Tom Krause, who has been named president of Infrastructure Software Group, which oversees the chipmaker’s six software divisions. Chief Sales Officer Charlie Kawwas was also named chief operating officer. Shares of Broadcom, however, fell 2% in extended trading after the company warned of soft demand from enterprise clients.