Journal of Inorganic Materials ›› 2023, Vol. 38 ›› Issue (8): 987-988.DOI: 10.15541/jim20231001

Special Issue: 【信息功能】纪念殷之文先生诞辰105周年虚拟学术专辑

• SCI-TECH DEVELOPMENT • Previous Articles    

Piezoelectric High Temperature Liquid Droplet Spraying Component

ZOU Kai1,2(), ZHANG Wenbin2, GUAN Sheng2, SUN Haiyi3, PENG Kailun3, ZOU Jiajie3, LI Xuehong3, WANG Cheng3, LENG Yuxin3, LIANG Ruihong2, ZHOU Zhiyong2()   

  1. 1. University of Chinese Academy of Sciences, Beijing 100049, China
    2. Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
    3. Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
  • Received:2023-03-16 Revised:2023-04-07 Published:2023-08-20 Online:2023-04-11
  • Contact: ZHOU Zhiyong, professor. E-mail: zyzhou@mail.sic.ac.cn
  • About author:ZOU Kai (1997-), male, PhD candidate. E-mail: zoukai19@mails.ucas.ac.cn
  • Supported by:
    Integrated Circuit Technology Support Special Project of Science and Technology Innovation Action Plan of Shanghai(20501110100)

Abstract:

Extreme Ultra-Violet (EUV) lithography utilizes Laser Produced Plasma (LPP) technology to generate EUV light with a 13.5 nm wavelength by bombarding tin liquid droplets with high-power lasers. Piezoelectric high-temperature nozzle based on inverse-piezoelectric effect is the key component for obtaining high-frequency tin droplet targets. Here, breakthroughs have been made in the composition design, fine preparation of high-temperature micro piezoelectric ceramic tubes that can withstand temperatures up to 250 ℃, and structure design, fabrication and precise driving control of the piezoelectric high-temperature nozzle. Based on a self-constructed high-temperature tin droplets generation platform, a stable output of high-temperature tin droplet targets with repetition frequency of 20 kHz and diameter of 100 μm is successfully achieved.

Key words: EUV lithography, micro piezoelectric ceramic tube, piezoelectric high-temperature nozzle, high- temperature piezoelectric ceramic

CLC Number: