Nozzle body for wet-blast processing appratus

Abstract

The purpose of the present invention is to provide a nozzle body for an innovative wet-blast processing apparatus that demonstrates unprecedented effects. The present invention is a nozzle body for a wet-blast processing apparatus in which a slurry ( 4 ) formed by mixing an abrasive ( 3 ) in a liquid ( 2 ) can be jetted together with pressurized air. The nozzle body removes burrs attached to a terminal ( 20 b ) of a semiconductor package ( 20 ) formed by providing a wiring substrate with an electronic component such as a semiconductor integrated circuit chip and covering the semiconductor package ( 20 ) with a synthetic resin. The nozzle body has a slurry-jetting opening ( 5 ) for jetting the slurry ( 4 ) to the tip of a cylindrical main body ( 6 ). The slurry-jetting opening ( 5 ) is formed having a polygonal shape in cross-section.

1 . A nozzle body for a wet-blast processing apparatus for causing a slurry formed by mixing an abrasive in a liquid to be jetted together with pressurized air, the nozzle body removing a burr attached to a terminal of a semiconductor package formed by providing a wiring substrate with an electronic component such as a semiconductor integrated circuit chip and covering the semiconductor package with a synthetic resin, the nozzle body having a slurry-jetting opening for jetting the slurry to a tip of a cylindrical main body, and the slurry-jetting opening being formed having a polygonal shape in cross-section. 
     
     
         2 . The nozzle body for a wet-blast processing apparatus according to  claim 1 , wherein the slurry-jetting opening has a square shape in cross-section. 
     
     
         3 . The nozzle body for a wet-blast processing apparatus according to  claim 1 , wherein a cylindrical main body provided with a cylinder hole having a square shape in cross-section is used as the cylindrical main body. 
     
     
         4 . The nozzle body for a wet-blast processing apparatus according to  claim 1 , wherein the opening dimensions of the slurry-jetting opening are set to a length of about 6 mm and a width of about 3 mm. 
     
     
         5 . The nozzle body for a wet-blast processing apparatus according to  claim 2 , wherein the dimensions of the slurry-jetting opening are set to a length of about 6 mm and a width of about 3 mm. 
     
     
         6 . The nozzle body for a wet-blast processing apparatus according to  claim 3 , wherein the dimensions of the slurry-jetting opening are set to a length of about 6 mm and a width of about 3 mm. 
     
     
         7 . The nozzle body for a wet-blast processing apparatus according to  claim 2 , wherein a cylindrical main body provided with a cylinder hole having a square shape in cross-section is used as the cylindrical main body. 
     
     
         8 . The nozzle body for a wet-blast processing apparatus according to  claim 7 , wherein the dimensions of the slurry-jetting opening are set to a length of about 6 mm and a width of about 3 mm.