Nozzle for cleaning substrate

A nozzle for cleaning a substrate, the nozzle comprising:

• a first body made of a resin material, and configured such that a first surface thereof is provided with a first part of a deionized water passage through which deionized water for cleaning a substrate flows and a deionized water supply hole is formed through from a second surface thereof to the deionized water passage of the first surface so as to supply the deionized water;
• a second body made of a resin material, and configured such that a first surface thereof coupled to the first body is provided with a second part of the deionized water passage and a plurality of spray holes are formed through from the deionized water passage to a deionized water spray surface along the deionized water passage so as to spray the deionized water to the substrate;
• a fusible protrusion provided protruding from the first body or the second body along the deionized water passage, and configured such that a part thereof is fused during ultrasonic welding, so as to couple the first body and the second body together by ultrasonic welding;
• and
• a fusible protrusion accommodating part formed in the first body or the second body along the deionized water passage in a shape corresponding to the fusible protrusion to accommodate the fusible protrusion.