COATING MATERIAL OF SEMICONDUCTOR CHIP FOR CONTROLLING MAGNETIC DISC DRIVE AND METHOD OF COATING SEMICONDUCTOR CHIP FOR CONTROLLING MAGNETIC DISC DRIVE

摘要

A method of coating a semiconductor chip for controlling a magnetic disc drive in which coating can be carried out without exposing the corner part of the semiconductor chip.The method is characterized in that a coating material where a coating layer of thermosetting resin is formed on one side of a base is mounted on the semiconductor chip while directing the coating layer toward the semiconductor chip side,the coating material is then hot pressed to soften the coating layer,the softened coating layer is held by surface tension on the surface of the base or between the fillet face of an underfill material and the surface of the base,and subsequently,the coating material is set by hot press while covering the side face of the semiconductor chip.