Patent ID: 6149047
Filing Date: 2000-11-21
Classification: H01L

Abstract:
A die-bonding machine for picking up a number of semiconductor pellets arranged in the form of a pellet array, one by one, to place a picked-up semiconductor pellet on a predetermined position, the die-bonding machine comprising:a pellet supporting and displacing mechanism for supporting said number of semiconductor pellets arranged in the form of the pellet array, and for displacing said number of semiconductor pellets arranged in the form of the pellet array, in an X direction and in a Y direction; anda pellet picking-up and carrying mechanism having a pellet sucking means which can be displaced in the X direction, in the Y direction and in a Z direction, for picking up one semiconductor pellet positioned on a pick-up position, from said number of semiconductor pellets supported by said pellet supporting and displacing mechanism, and for placing the picked-up semiconductor pellet on said predetermined position, said pick-up position being movable only in the X direction,wherein a center point of said pellet supporting and displacing mechanism is the origin of the coordinates in the X direction,wherein an X-direction coordinate position of the semiconductor pellet to be picked up in relation to said pellet supporting and displacing mechanism is ""x"", andwherein a center position of an X-direction moving range of said pellet supporting and displacing mechanism is the origin of the coordinates,wherein said pellet supporting and displacing mechanism and said pellet picking-up and carrying mechanism are displaced so that an X-direction coordinate position PX of said pick-up position takes a position expressed by a first equation, said first equation being ""PX=Ax"" and an X-direction coordinate position CX of said center point of said pellet supporting and displacing mechanism takes a position expressed by a second equation, said second equation being ""CX=-(1-A)x, andwherein said A is a positive number less than 1.