| 摘要 |
PROBLEM TO BE SOLVED: To prevent the occurrence of chipping and the occurrence of burrs when a resin sealing body is collectively cut by using a rotary blade.SOLUTION: In a state where a rotary blade 9 is rotated in one direction in which an outer circumference part of the rotary blade 9 can keep cutting from a surface (upper surface) of a substrate 2 being an uppermost layer toward the inside, a stage 8 is moved in the +X direction and the rotary blade 9 cuts the substrate 2. Subsequently, in the state where the outer circumference part of the rotary blade 9 can keep cutting from a surface (lower surface) of a sealing resin 4 being a lowermost layer toward the inside, the stage 8 is moved in the -X direction and the rotary blade 9 cuts the sealing resin 4. By these arrangements, the resin sealing body 1 having a double-layered structure comprising the substrate 2 and the sealing resin 4 is cut. |
