SLOT DIE COATER

Disclosed is a slot die coater that improves die block deformation due to internal pressure. A slot die coater of the present disclosure includes an upper plate and a lower plate assembled with each other to form a discharge port; and a shim interposed between the lower plate and the upper plate to form a slot communicating with the discharge port, wherein the upper plate has a groove recessed into the upper plate parallel with the shim above the slot, and further includes a taper block and a pressure bolt fitted into the groove to press the shim.