作者：
Landrault, CNouet, PLaboratoire d'Informatique
de Robotique et de Microelectronique de Montpellier LIRMM U.M.R. 9928 UNIVERSITE MONTPELLIER II / CNRS 161 Rue ADA 34392 Montpellier Cedex 5 France Tel: (+33) 67.41.85.27 Fax: (+33) 67.41.85.00
A new concept for Electron-Beam testing of Integrated Circuit (IC) is presented. The procedure involves E-Beam logical controllability and observability in order to apply test patterns and to analyze circuit response ...
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A new concept for Electron-Beam testing of Integrated Circuit (IC) is presented. The procedure involves E-Beam logical controllability and observability in order to apply test patterns and to analyze circuit response directly on the I/O of an embedded functional block. Simple and low silicon cost design for testability rules are given.
The paper discusses a new kind of modem testing method used in magnification of telescopic optical system, which applied the technique of photoelectric imaging creation automatically based on DLP theory and the techni...
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ISBN:
(纸本)0819455938
The paper discusses a new kind of modem testing method used in magnification of telescopic optical system, which applied the technique of photoelectric imaging creation automatically based on DLP theory and the technique of collecting image based on CCD imaging theory. This method simplifies customary measuring process, realizes objective and automatic measuring, and avoids subjective error which artificial factor leads to with using customary testing method, so as to attaining higher testing precision.
We proposed a combo design of pick-up head used prism to shorten the geometrical size and reduce the optical components. We apply a rhomboid beam splitter to separate two diodes in the design for the optical pick-up h...
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ISBN:
(纸本)0819455938
We proposed a combo design of pick-up head used prism to shorten the geometrical size and reduce the optical components. We apply a rhomboid beam splitter to separate two diodes in the design for the optical pick-up head of DVD and HD-DVD.
The principles of operation and optomechanical design of novel optical extensometer OPEX for tensile testing machines is presented. The system provider on-line strain measurements performed at an arbitrary measurement...
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ISBN:
(纸本)0819440930
The principles of operation and optomechanical design of novel optical extensometer OPEX for tensile testing machines is presented. The system provider on-line strain measurements performed at an arbitrary measurement base. OPEX is integrated with a tensile loading machine so it can be used for active controlling of the machine setup, The applicability of the system is demonstrated by determination of elongation of various mechanical samples subjected to uniaxial tensile tests.
This paper describes a complete E-Beam testing system that has been constructed for the electrical probing of VLSI Integrated Circuits. The instrument comprises a custom built electron optical column optimized for E-B...
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This paper describes a complete E-Beam testing system that has been constructed for the electrical probing of VLSI Integrated Circuits. The instrument comprises a custom built electron optical column optimized for E-Beam test, control and signal processing electronics and a Microvax ii computer and custom software for user interface. The instrument has been used to electrically probe complex logic and memory products including Intel's line of 80×86 Microprocessors and EPROMS. The system has been used primarily to support failure analysis and chip debug. This paper describes the overall system implementation together with details of the optical and software design. Instrument performance and application results are also presented.
In order to evaluate if an ophthalmic instrument has exempt status it shall not exceed any of the emission limits, we designed a relatively simple and inexpensive optical radiation measurement system that can be used ...
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ISBN:
(纸本)0819455938
In order to evaluate if an ophthalmic instrument has exempt status it shall not exceed any of the emission limits, we designed a relatively simple and inexpensive optical radiation measurement system that can be used to evaluate if an ophthalmic instrument is below the emission limits specified in the standard. The system can complete one measure of the spectral irradiance (in W/(cm*cm*nm)) from 250nm similar to 1100nm in shortest time of 10us and the system is applicable to the instruments with continuous visible light output and pulsed light output.
This paper describes the results of the design effort for a new kind of three-mirror anastigmatic system (TMAS) and its tolerance exercise. The system's focal length is 100mm and the relative aperture is f/10, it&...
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ISBN:
(纸本)0819455938
This paper describes the results of the design effort for a new kind of three-mirror anastigmatic system (TMAS) and its tolerance exercise. The system's focal length is 100mm and the relative aperture is f/10, it's total length is nearly f'/3 similar to f'/3.5 and field of view (FOV) is 10(0) x 1(0) The final optical system is a three-mirror unobscured telescope. It achieves diffraction-limited imagery at visible wavelengths. Finally We can draw two conclusions: 1) design of unobscured optical system is still best approached using fundamental opticaldesign principle;2) time spent in careful modeling of fabrication, testing will result in more relaxed tolerances and a higher probability of success for the assembled system.
The paper discusses a new method to measure resolution of optical instrument. It is based on DLP technique of photoelectric graph generating automatically, CCD imaging technique and computer image processing technique...
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ISBN:
(纸本)0819455938
The paper discusses a new method to measure resolution of optical instrument. It is based on DLP technique of photoelectric graph generating automatically, CCD imaging technique and computer image processing technique. It can eliminate the drawback of fatigue easily and artificial effect of visual method. The technique is high precision, high automatic and digital processing.
A paper design is the design, which has the theoretical design only and without considering the manufacturing errors. Therefore, the final performance of the lens assembly might degrade far apart from the paper design...
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ISBN:
(纸本)0819455938
A paper design is the design, which has the theoretical design only and without considering the manufacturing errors. Therefore, the final performance of the lens assembly might degrade far apart from the paper design. An example of wide-angle lens tolerance analysis is presented. The numerical and graphical aberration degradation analysis shows the useful method to decide the individual lens element manufacturing tolerance.
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