Patent ID: 8211261
Filing Date: 2012-07-03
Classification: H01L,Y10T

Abstract:
1. A method of manufacturing a semiconductor device, which comprises: feeding a die bonding paste discharged from a nozzle of a dispenser onto a mounting base and thereafter mounting semiconductor chips onto the mounting base through the paste, the dispenser comprising a block having a suction port and a discharge port, a sealing disc fixed onto the block and having a lower surface in contact with the block and an upper surface opposite to the lower surface, a valve disc having a lower surface adapted to rotate in sliding abutment against the upper surface of the sealing disc and further having a plunger inserting hole formed through both upper and lower surfaces thereof, and a plunger supported vertically movably and inserted partially into the plunger inserting hole of the valve disc, the sealing disc having a suction hole which is put in communication with the suction port of the block and a discharge hole which is put in communication with the discharge port of the block, a suction groove being formed in the upper surface of the sealing disc, the suction groove being connected to the suction hole, a discharge groove being formed in the upper surface of the sealing disc, the discharge groove being connected to the discharge hole, and the suction groove surrounding the entire periphery of the discharge groove.