Patent ID: 7087126

Claim:
A mounting method of bonding by thermocompression with use of a heater head a display board and a flexible printed circuit board in such a way that a first terminal electrode row of said display board and a second terminal electrode row of said flexible printed circuit board are electrically connected, wherein a load change per unit of time after said heater head starts compressing said flexible printed circuit board as well as a time at which a required load is attained are controlled, so that a stretch amount of said second terminal electrode row caused by thermocompression is controlled, the method comprising: a relative position determining step of determining a relative positional relationship between reference patterns formed on either side of said first terminal electrode row and a relative positional relationship between positioning patterns formed on either side of said second terminal electrode row; a preliminary bonding step of preliminarily fixing a relative position of said heater head with respect to said flexible printed circuit board performed after said relative position determining step; a regular bonding step performed after said preliminary bonding step; a stretch amount calculating step of calculating the stretch amount of said second terminal electrode row based on information obtained from said relative position determining step; and a correction amount calculating step of calculating a correction amount corresponding to a difference between stretch amounts of said first terminal electrode row and said second terminal electrode row based on the stretch amount of said second terminal electrode row.