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长春光学精密机械与物... [2]
自动化研究所 [2]
半导体研究所 [1]
西安光学精密机械研究... [1]
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OAI收割 [6]
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会议论文 [4]
期刊论文 [2]
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2024 [1]
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2007 [1]
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半导体物理 [1]
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Sequential Scan-Based High-Resolution 3-D Open-Sided Magnetic Particle Imaging System
期刊论文
OAI收割
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, 2024, 卷号: 73, 页码: 12
作者:
He, Jie
;
Zhang, Haoran
;
Lei, Siao
;
Li, Guanghui
;
Li, Yimeng
  |  
收藏
  |  
浏览/下载:37/0
  |  
提交时间:2024/07/22
Coils
Permanent magnets
Motors
Superparamagnetic iron oxide nanoparticles
Spatial resolution
Magnetic fields
Interference
Field-free line (FFL)
magnetic particle imaging (MPI)
open-sided
sequential scan
High-resolution Shape From Focus Based on Line Scan Imaging
会议论文
OAI收割
Xiamen, PEOPLES R CHINA, 2020-08-25
作者:
Ling, Xi
;
Zhang, Pengchang
;
Zhang, Zhaoyang
;
Gao, Ruixue
  |  
收藏
  |  
浏览/下载:45/0
  |  
提交时间:2021/06/04
Line scan imaging
High-resolution
Shape from focus
Uniformly-distributed point cloud
A New Calibration Method of Line Scan Camera for High-Precision Two-Dimensional Measurement
会议论文
OAI收割
August 20-24, 2018, Munich, Germany
作者:
Jiabin, Zhang
;
Zhengtao, Zhang
;
Fei, Shen
;
Feng, Zhang
;
Hu, Su
  |  
收藏
  |  
浏览/下载:31/0
  |  
提交时间:2021/06/17
line scan camera
camera calibration
distortion correction
visual measurement
planar measurement
Key techniques of laser direct writing patterns on spherical substrate (EI CONFERENCE)
会议论文
OAI收割
3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies, AOMATT 2007: Design, Manufacturing, and Testing of Micro- and Nano-Optical Devices and Systems, July 8, 2007 - July 12, 2007, Chengdu, China
作者:
收藏
  |  
浏览/下载:44/0
  |  
提交时间:2013/03/25
Comparing with the writing method of plane pattern
spherical pattern' has some remarkable different on several points. Firstly
it is difficult to spin-coated a uniform photoresist film on a spherical substrate
especially the ratio of spherical radius to caliber is smaller
and the spin-coated way must match the ratio of spherical radius to caliber. Secondly
if the sphere couldn't be regarded as a plane
a so-called concentric optical scan movement way must be applied for the generation of spherical pattern
because the reflex of substrate will affect the quantity of illumination. Commonly
an alignment technique is indispensable with pattern generation of spherical surface by the concentric optical scan in order to ensure the orthogonal intersection of focusing laser beam and writing surface. Thirdly
a uniform velocity control must be considered for the laser direct writing method on a spherical substrate. Otherwise
the exposure time of photoresist will be different
and the line widths of pattern will be also different at different areas. Fourthly
commonly
because the errors of concentric machine and substrate surface shape are bigger
so focusing servo-control technique is also needful for writing a pattern on a spherical substrate. Focusing servo-control may keep the focal spot on the spherical surface by a focus detection and control system in the course of writing pattern. Using these techniques
we fabricated a line width of 7m and a period of 600m isometric mesh on the concave of a spherical substrate.
Method for the fabrication of isometric mesh on the concave of a spherical substrate (EI CONFERENCE)
会议论文
OAI收割
2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies - Advanced Optical Manufacturing and Testing Technologies, November 2, 2005 - November 5, 2005, Xian, China
作者:
Feng X.-G.
收藏
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浏览/下载:54/0
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提交时间:2013/03/25
Metallic mesh has been widely used in electromagnetic interference windows. While the duty ratio of curved mesh equals to planar mesh'
the theory of planar mesh may be applied to curved mesh according to equivalent-circuit model. So the idea that latitude lines intersect latitude lines to form isometric mesh on the concave of a sphere is put forward
and the method of fabricating the mesh by concentric optical scan is introduced. The movement parts of equipment consist of an erection turning
a horizontal dividing and a pitching dividing spindle. Firstly
a spherical substrate is fixed on the horizontal dividing spindle that has been set horizontally on the erect turning spindle
the substrate revolves around the axis of the erect spindle
the tube of object lens that is fixed on the pitching dividing spindle steps at pitching direction
and a revolving circuit of the substrate corresponds to a step of the tube. Gradually
a set of latitude lines is attained. Afterward
the substrate makes a quarter turn around the horizontal spindle
another orientation latitude lines are also gained. Thus
the isometric mesh on the concave of a spherical substrate is gained. The process comprises surface cleaning
coating photoresist
laser direct writing
development
evaporated film
dissolving photoresist and plating. The fabricated spherical mesh has a line width of 7 m and a period of 600m. Experiment shows that infrared transmission and electromagnetism shield efficiency of the metallic mesh are relatively consistent with theoretical value.
A novel method of determining semiconductor parameters in EBIC and SEBIV modes of SEM
期刊论文
OAI收割
semiconductor science and technology, 2003, 卷号: 18, 期号: 4, 页码: 361-366
Zhu SQ
;
Rau EI
;
Yang FH
收藏
  |  
浏览/下载:131/0
  |  
提交时间:2010/08/12
SURFACE RECOMBINATION VELOCITY
DIFFUSION LENGTH
LINE SCAN
EXTRACTION