Patent ID: 11860545
Assignee: nan
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. An exposure device, configured for projecting a laser onto a photoresist layer, and the exposure device comprising:
a laser source, for emitting a laser;
a first spatial light modulator, irradiated by the laser, and comprising a plurality of first pixels, each first pixel being used for reflecting the laser after the phase of the laser irradiated thereon is modulated;
a second spatial light modulator, irradiated by the laser reflected by the first spatial light modulator, and comprising a plurality of second pixels, each second pixel being used for reflecting the laser after the amplitude of the laser irradiated thereon is modulated;
a controller, electrically coupled to the laser source, the first spatial light modulator and the second spatial light modulator for controlling the laser source, the first spatial light modulator and the second spatial light modulator; and
a sensor, installed between the second spatial light modulator and the photoresist layer, and electrically coupled to the controller;
wherein, the laser reflected by the second spatial light modulator irradiates on the photoresist layer and forms an exposure pattern, and the exposure pattern comprises a plurality of third pixels, and the first pixel, the second pixels correspond to the third pixels respectively;
wherein, the sensor comprises a beam splitter, a light intensity sensor, and a phase sensor, and the beam splitter is installed between the second spatial light modulator and the photoresist layer and provided for dividing the incident laser into a first laser and a second laser, and the first laser is incident on the second spatial light modulator, and the second laser is incident on the light intensity sensor and the phase sensor.