Abstract:
본 발명은 어플리케이터를 이용하여 생체 조직의 유전율을 측정하는 기능과 고열 치료요법을 수행하는 기능을 겸용할 수 있도록 하는 기술에 관한 것이다. 이와 같은 본 발명은 생체 조직의 유전율 측정에 사용되는 어플리케이터의 마이크로스트립 라인상에 특정 주파수에서 동작하는 임피던스 매칭 네트워크를 형성하여, 하나의 어플리케이터로 생체 조직의 유전율을 측정하는 기능과 반사 손실 없이 고열 치료요법 기능을 수행할 수 있도록 하는 것을 특징으로 한다.
Abstract:
본발명은 HEMT 게이트절연막형성방법에관한것으로서, 더욱상세하게는게이트절연막으로 PEALD SiN 박막과 ICP-SVD SiN 박막을형성하거나, PEALD SiN 박막과 High-K 물질의 RF-sputtered HfO박막을형성하는방법에관한것이다.본발명은 HEMT 소자의게이트절연막을형성하는방법에있어서,(a) 에피택시얼층과오믹컨택층이형성된 Si 기판을 ICP-CVD 장비의진공챔버에투입해서 Si과 N의전구체(precursor)로 SiH, N가스를사용하여제1게이트절연막으로 PEALD SiN 박막을형성하는단계;(b) 상기 ICP-CVD 장비의진공챔버를사용하여 PEALD SiN 박막위에제2게이트절연막으로 ICP-CVD 방식의 SiN 박막을형성하는단계; 를포함하여구성된다.
Abstract:
PURPOSE: A method for manufacturing nano scale t-type gate using a sacrificial layer is provided to form stable T-type gate with an excellent current gain property and without inclination by reducing the size of the t-gate which is formed by the post-processing. CONSTITUTION: Sacrificial layers(290,200) are formed on a substrate(200) in which a source and a drain are formed. A photosensitive layer is formed on the upper part of the sacrificial layer. An electronic beam is irradiated on the photosensitive layer and an area, in which a gate is formed, is patterned and the sacrificial layer is exposed. A pattern is formed a wall in which the sacrificial layer is etched and slope is formed. An electrode material is evaporated in the entire of the substrate. The photosensitive layer is eliminated.
Abstract:
PURPOSE: A precision-machining air cavity resonator, a manufacturing method thereof, a bandpass filter, and an oscillator thereof are provided to remove an interference effect when the outer circuit of a package substrate is connected to a current probe by using a groove structure. CONSTITUTION: An air cavity structure(100) comprises a current probe(120) and a groove structure(110) which are simultaneously formed through a processing process. The air cavity structure is integrated to a package substrate(200). The groove structure removes an interference effect when the outer circuit is connected to the current probe. The current probe is formed into at least one pole or wall shape. The inner surface of the air cavity structure, which includes the current probe and the groove structure, is coated into a metal. A thin film microstrip or a CPW(Coplanar Waveguide) is operated as an input/output port between the air cavity structure and the outer circuit.