Japanese chipmaker Renesas Electronics Corp. resumed production at a plant near Tokyo on Saturday, about a month after fire damaged the facility, sources close to the matter said.Renesas, the world's leading supplier of microcontrollers used in vehicle power control units, had said it was aiming to restart the plant in Ibaraki Prefecture, northeast of the capital, within a month of the March 19 fire. The incident came at a time when the world is facing a semiconductor supply shortage.The company completed repairs and preparations in cleanrooms, which are crucial for semiconductor manufactur…READ FULL ARTICLE