• Title/Summary/Keyword: 정렬 스테이지

Search Result 26, Processing Time 0.022 seconds

Development of Thin and Parallel XYθ Alignment Stage (박형 병렬구조 XYθ 정렬 스테이지 개발)

  • Kang, Dong-Bae;Ahn, Jung-Hwan;Son, Seong-Min
    • Journal of the Korea Academia-Industrial cooperation Society
    • /
    • v.12 no.1
    • /
    • pp.74-79
    • /
    • 2011
  • Alignment systems with multi-axis motions are applied to determine vertical arrangement of multilayer assembly such as LCD, PDP, and MLCC. This study reports the development of XY${\theta}$ alignment stage which is designed as thin-type structure and parallel actuations. The thin-type parallel XY${\theta}$ alignment stage is maintained below $1{\mu}m$ in repeatability error. The squareness and straightness also allow precise motion for the alignment by the developed stage. The measured error is ${\pm}6.25{\mu}m$ in the alignment experiment by the vision system on the parallel XY${\theta}$ alignment stage.

다채널 광정렬 장치에서의 다자유도 회전스테이지 구동 메커니즘 연구

  • 정상화;차경래;최석봉;김광호;박준호
    • Proceedings of the Korean Society of Precision Engineering Conference
    • /
    • 2004.05a
    • /
    • pp.232-232
    • /
    • 2004
  • 최근 초고속 광통신 시스템이 발달함에 따라, 광통신 시스템 및 초고속 광통신 시스템의 핵심 부품인 평면도파로형 분배기(Splitter) 및 결합기(Coupler), 파장분할 다중화소자(WDM), AWG(Arrayed Wave Guide) 필터와 같은 소자부품 수요가 급격히 늘고 있다. 그러나 이러한 소자를 생산하는 공정은 수공적인 방법에 의존하여 생산성 향상을 위한 자동화에 대한 요구가 시급하다 특히 소자(Devices)와 광섬유(Optical fiber) 사이의 광학적인 정렬(Alignment)과 접속(Attachment) 공정은 부품 성능 및 생산성 향상, 그리고 비용절감을 위한 가장 핵심적인 문제로 대두되고 있다.(중략)

  • PDF

이중 서보 메커니즘을 이용한 초정밀 스테이지에 대한 연구

  • 한창수;김승수;나경환;최현석
    • Proceedings of the Korean Society Of Semiconductor Equipment Technology
    • /
    • 2004.05a
    • /
    • pp.268-271
    • /
    • 2004
  • 반도체 가공공정에서 웨이퍼의 정렬이나 각종 초정밀 가공에서 가공물의 각도를 미체 조정하기 위한 초정밀 메커니즘을 제안하였다. 일반적으로 각도를 결정하는 메커니즘은 기어를 이용한다. 기어를 이용할 경우 회전 분해능을 높일 수 있으나 기어의 백래쉬에 의한 오차가 있어 보다 높은 정밀도를 구현하기가 어렵다. 본 논문에서는 직접구동(direct drive) 방식과 이중서보(dual servo) 방식을 이용하여 기어를 사용하지 않고 회전 스테이지를 구현하였다.

  • PDF

A Piezo-driven Ultra-precision Stage for Alignment Process of a Contact-type Lithography (접촉식 리소그라피의 정렬공정을 위한 압전구동 초정밀 스테이지)

  • Choi, Kee-Bong;Lee, Jae-Jong;Kim, Gee-Hong;Lim, Hyung-Jun
    • Journal of the Korean Society of Manufacturing Technology Engineers
    • /
    • v.20 no.6
    • /
    • pp.756-760
    • /
    • 2011
  • This paper proposed an alignment stage driven by piezo actuators for alignment process of a contact-type lithography. Among contact-type lithography processes, an UV-curable nanoimprint process is an unique process to be able to align patterns on upper and lower layers. An alignment stage of the UV-curable nanoimprint process requires nano-level resolution as well as high stiffness to overcome friction force due to contact moving. In this paper, the alignment stage consists of a compliant mechanism using flexure hinges, piezo actuators for high force generation, and capacitive sensors for high-resolution measurement. The compliant mechanism is implemented by four prismatic-prismatic compliant chains for two degree-of-freedom translations. The compliant mechanism is composed of flexure hinges with high stiffness, and it is directly actuated by the piezo actuators which increases the stiffness of the mechanism, also. The performance of the ultra-precision stage is demonstrated by experiments.

A Study on the Optical Device Alignment Characteristics Improvement using Multi-Axis Ultra Precision Stage (극초정밀 다축 스테이지를 이용한 광소자 정렬 특성 향상에 관한 연구)

  • Jeong, Sang-Hwa;Cha, Kyoung-Rae;Kim, Gwang-Ho
    • Journal of the Korean Society for Precision Engineering
    • /
    • v.22 no.12 s.177
    • /
    • pp.175-183
    • /
    • 2005
  • In recent years, as the demands of VBNS and VDSL increase, the development of kernel parts of optical communication such as PLC(Planar Light Circuit), Coupler, and WDM elements increases. The alignment and the attachment technology are very important in the fabrication of optical elements. In this Paper, the optical alignment characteristic of multi-axis ultra precision stage is studied. The alignment algorithms are studied for applying to the ultra precision multi-axis stage. The alignment algorithm is comprised of field search and peak search algorithms. The contour of optical power signals can be obtained by field search and the precise coordinate can be found out by peak search. Three kinds of alignments, such as 1 ch. input vs. 1 ch. output optical stack, 1 ch. input vs. 8 ch. output PLC stacks, and ferrule vs. ferrule, are performed for investigating the alignment characteristics.

A Study on the Optical Element Alignment Automation using Multi-Axis Ultra Precision Stage (극초정밀 다축 스테이지를 이용한 광소자 정렬 자동화에 관한 연구)

  • Jeong, Sang-Hwa;Kim, Gwang-Ho
    • Transactions of the Korean Society of Machine Tool Engineers
    • /
    • v.15 no.6
    • /
    • pp.64-70
    • /
    • 2006
  • The optical element was usually used in optical devices and optical transfer devices, but it has been recently used in communication, computer and medical equipment. With the development of very high speed optical-communication, the development of the kernel parts of optical communication has also increased. Presently, the alignment of the optical element is time consuming, and an effective alignment algorithm has not yet to be developed. In this paper, the alignment automation of the optical element is studied. The ultra precision stage is applied to an optical element alignment to improve the accuracy of the alignment. The automation program of the optical element alignment is developed by LabVIEW programming to save the alignment time. The alignment algorithms of the optical element consist of field search and peak search algorithms.

Development of Multi-Axis Ultra Precision Stage for Optical Alignment (광소자 정렬용 초정밀 다축 스테이지 개발)

  • 정상화;이경형;김광호;차경래;김현욱;최석봉;박준호
    • Proceedings of the Korean Society of Machine Tool Engineers Conference
    • /
    • 2004.10a
    • /
    • pp.213-218
    • /
    • 2004
  • As optical fiber communication grows, the fiber alignment become the focus of industrial attention. This greatly influence the overall production rates for the opto-electric products. We proposed multi-axis nano positioning stage for optical fiber alignment. This device has 3 DOF translation and sub nanometer resolution. This nano stage consist of 3 PZT-driven flexure stages which are stacked parallel. The displacement of it is measured with capacitance gauge and is controlled by computer-embedded main controller. The design process of flexure stage using FEM is proposed and the performance evaluation of this system is verified with experiments.

  • PDF

A Study on the Mechanism of Rotational Stage with Multi Degree of Freedom for Multi-Channel Optical Alignment System (다채널 광정렬 장치에서의 다자유도 회전 스테이지 동작 특성에 관한 연구)

  • 정상화;차경래;최석봉;김광호;박준호;이경형
    • Proceedings of the Korean Society of Machine Tool Engineers Conference
    • /
    • 2004.04a
    • /
    • pp.219-224
    • /
    • 2004
  • In recent years, as the demands of VBNS(Very high speed Backbone Network Service) and VDSL(Very high-data rate Digital Subscriber Line) increase, the development of kernel parts of optical communication such as PLC(Planar Light Circuit), Coupler, WDM elements increase. The alignment and the attachment technology are very important to fabricate the optical elements for communication. In this paper, the mechanism of rotational stage, the contact sensing unit, and integrated control circuit for the optical alignment system are studied.

  • PDF

A Study on the Development of the Rotary Stage for Multi-Channel Optical Alignment System (다채널 광정렬 장치 로터리 스테이지 개발에 관한 연구)

  • 정상화;차경래
    • Proceedings of the Korean Society of Machine Tool Engineers Conference
    • /
    • 2003.10a
    • /
    • pp.143-148
    • /
    • 2003
  • In recent years, as the optical Communication systems are developed, the demands of essential parts such as splitter, coupler, WDM, and AWG filter are grow rapidly. The fabrication process for them is not, however, automatic. On that reason, the automation is needed for the grow of productivity. The optical alignment and attach ment is the core process in fabrication. In this paper, the 6-axis rotary stage for multi-channel optical alignment system is developed and the dynamic characteristic of this system is studied.

  • PDF