Patent ID: 9146461
Filing Date: 2015-09-29
Classification: B41J,G03F

Abstract:
1. A method of making a nozzle chip, the method comprising: a step of reduction-projection-exposing a photosensitive resin material to exposure light through a mask by using a reduction-projection-exposure apparatus, the mask having a light-transmitting pattern formed thereon; and a step of forming an ejection orifice pattern corresponding to the light-transmitting pattern on the photosensitive resin material by performing a developing operation, wherein the exposure light in the step of reduction-projection-exposing is passed through a correction mechanism before the exposure light reaches the photosensitive resin material, the correction mechanism being configured to suppress an inclination of a chief ray due to off-axis telecentricity that occurs in the reduction-projection-exposure apparatus so the exposure light can be perpendicularly incident on the entire exposure area to form ejection orifices by patterning.