Inspection apparatus and inspection method using same

According to exemplary embodiments according to the technical idea of the present invention, an inspection apparatus is provided. The inspection apparatus may include: an inspection signal source configured to irradiate a wafer with an inspection light beam having a frequency ranging from 0.1 tera h...

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Bibliographic Details
Main Authors JEON IK SEON, KIM KWANG RAK, PARK JUN BUM, LEE WON KI, YOON JONG MIN, BAEK IN KEUN, PRIWISCH MARTIN, PARK SU HWAN
Format Patent
LanguageEnglish
Korean
Published 30.12.2022
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Summary:According to exemplary embodiments according to the technical idea of the present invention, an inspection apparatus is provided. The inspection apparatus may include: an inspection signal source configured to irradiate a wafer with an inspection light beam having a frequency ranging from 0.1 tera hertz (THz) to 10 THz; a curved rail; a probe mount configured to move along the curved rail; and first and second probes coupled to the probe mount. The first probe is configured to detect the inspection beam passing through the wafer. The curved rail has a convex curved surface toward the first and second probes. 본 발명의 기술적 사상에 따른 예시적인 실시예들에 따르면, 검사 장치가 제공된다. 상기 검사 장치는, 0.1 THz(Tera Hertz) 내지 10 Thz 범위의 주파수를 갖는 검사 광선을 웨이퍼에 조사하도록 구성된 검사 신호원; 커브드 레일; 상기 커브드 레일을 따라 구동하도록 구성된 프로브 마운트; 및 상기 프로브 마운트에 결합된 제1 및 제2 프로브들을 포함하되, 상기 제1 프로브는 상기 웨이퍼를 투과한 상기 검사 광선을 검출하도록 구성되고, 상기 커브드 레일은 상기 제1 및 제2 프로브들을 향하여 볼록한 곡면을 갖는다.
Bibliography:Application Number: KR20210081797