PASTE DISPENSER

摘要

PURPOSE: A paste dispenser is provided to measure the deformity generated to the paste which is coated on a substrate in a real-time basis using the difference between the amount of light emitted and light received about the light emitted on the substrate. CONSTITUTION: A paste dispenser comprises a dispensing head unit, a sensing unit(70), and a control unit. The dispensing head unit has a nozzle(53) for discharging paste on the substrate. The sensing unit is equipped in the dispensing head unit and comprises a light emitting portion(71) and a light receiving portion(72). The light emitting unit radiates light. The light receiving unit receives light reflected from the substrate, or paste covered on the substrate and emitted from the light emitting unit. The control unit measures the coating state of paste coated on the substrate based on the difference between the amount of light emitted and the amount of light received.