Management repeatedly emphasized 22-nanometer as a key growth driver. Liu said 22- and 28-nanometer revenue in the fourth quarter represented 36% of total revenue. President Jason Wang added that 22-nanometer revenue increased 31% quarter over quarter to a record high and accounted for more than 13% of fourth-quarter revenue.In geographic revenue mix, management highlighted a shift away from North America. Liu said North America represented about 21% of fourth-quarter revenue, and on a full-year basis North ...