SCREEN PRINTING MACHINE AND BUMP FORMING METHOD

摘要

A screen printing machine and a bump forming method are provided to reduce a facility cost by configuring a plurality of soldering bumps at a high speed. A screen printing machine includes a sheave shape body(45), and a vibrator(47). The screen printing machine provides and prints a soldering ball using a printing unit by installing a mask on an electrode formed on a substrate. The sheave shape body has a metal plane having a plurality of apertures. The vibrator applies a vibration to the sheave shape body. The aperture is widened by vibrating the sheave shape body with the vibrator. A soldering ball received in the sheave shape body is provided to an electrode of the substrate by installing the mask.