The manufacturing of the next generation of DRAMs will require microlithographic capability in the 0.5μm range. Our goal is to develop this capability using g-line optical microlithography;and i-line when g-line fail...
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The manufacturing of the next generation of DRAMs will require microlithographic capability in the 0.5μm range. Our goal is to develop this capability using g-line optical microlithography;and i-line when g-line fails. To determine if surface-imaging is a viable alternative to extend the practical resolution limit of g-line lithography in a manufacturing environment, we have set up and characterized DESIRE, a surface-imaging process, in a high-volume DRAM manufacturing production line. This characterization study includes: a) determination of basic lithographic data, b) measurement of linewidth as the criterion to determine the stability of the process over time, c) pattern transfer and stability of the resist to dry-etch processes, d) measurement of any radiation-induced damage taking place during dry-development.
advances in computer technology and mass storage have paved the way for implementing advanced data compression techniques to improve the efficiency of transmission and storage of images. The present paper deals on the...
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ISBN:
(纸本)1556173296
advances in computer technology and mass storage have paved the way for implementing advanced data compression techniques to improve the efficiency of transmission and storage of images. The present paper deals on the development of a data compression algorithm suitable for images received from satellites. The compression ratio of 1.91:1 is achieved with the proposed technique. The technique used is 1-D DPCM Coding. Hardware relevant to coder has also been proposed.
The authors present an overview of the application of various memory technologies for flight data recorder (FDR) systems. Memories considered include battery-backed static RAM, full-featured EEPROM, flash EEPROM, and ...
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ISBN:
(纸本)078030084X
The authors present an overview of the application of various memory technologies for flight data recorder (FDR) systems. Memories considered include battery-backed static RAM, full-featured EEPROM, flash EEPROM, and optical disks. FDR systems are particularly dependent on nonvolatile memory technologies, which must be selected based on the various functional, environmental, and cost-associated requirements of the applicable system. In order to select the memory technology best suited for a particular system application, a thorough understanding of the various specifications of each memory component type is required. The authors discuss these issues in detail.
The amount of data that will be collected from space platforms will increase tremendously over the next decade, given the ever improving spatial and spectral resolutions of remote sensing instruments. This huge data v...
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Proceedings incorporates 74 papers that are arranged into two main areas dealing with: flight control technology and digital control technology. These two areas cover the following topics: VLSI/components/packaging, s...
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ISBN:
(纸本)078030084X
Proceedings incorporates 74 papers that are arranged into two main areas dealing with: flight control technology and digital control technology. These two areas cover the following topics: VLSI/components/packaging, signal processing, airborne computers, data transmission, advanced avionics architecture, optical applications, information control and display, datastorage, airborne image processing, airborne radar and fire control, navigation, weapon guidance and interface, Kalman filtering, power generation and control as well as command, control and communications.
Digital seismic data acquisition systems have recently become available to supersede the analog equipment commonly used in very high resolution (better than 1 meter) shallow marine seismic reflection surveys. These sy...
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ISBN:
(纸本)9781613990872
Digital seismic data acquisition systems have recently become available to supersede the analog equipment commonly used in very high resolution (better than 1 meter) shallow marine seismic reflection surveys. These systems have been successfully tested and used both in the domain of subsurface sedimentology and in that of site surveys for operational needs. Due to the specific nature of very high resolution seismic reflection data, new processing methods and tools are studied and customized from other application fields. Companion computation of synthetic seismograms is carried out and compared with field measurements. data provided from site surveys by ELF-Aquitaine serve as a basis to demonstrate the abilities of digital processing and its contribution to the use of geotechnical surveys. Acquisition is performed using the DELPHI system which allows for digital acquisition and real-time processing, as well as cost-saving storage of the data for further reassessment. Lines of particular interest are post-processed on engineering workstations through SITHERE software. This last package also allows for easy development, testing and implementation of new methods and algorithms, of which finely tuned versions can then be integrated in the DELPHI package for field processing. Copyright 1991, Offshore technologyconference.
data integrity is a primary concern for the users of any datastorage medium. For opticaldatastorage, the integrity is directly related to the performance and defect level of the storage media and how they change as...
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data integrity is a primary concern for the users of any datastorage medium. For opticaldatastorage, the integrity is directly related to the performance and defect level of the storage media and how they change as the media ages. A discussion is presented of some of the test methods that have been used while surveying commercially available, rewriteable optical media.< >
Since the computer was invented, storage and retrieval of digital information has been a major challenge. The emergence of optical disk recording technology was a great event in these fields. Erasable optical recordin...
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Since the computer was invented, storage and retrieval of digital information has been a major challenge. The emergence of optical disk recording technology was a great event in these fields. Erasable optical recording is a new technology for achieving high density datastorage. Advanced thin films are of interest for use in opticaldatastorage. The two leading contenders are magneto-optical (M-O) and phase change (P-C) recording thin films. Recently a great number of studies was performed concentrating on laser induced magnetic micro-domain formation of rare-earth-transition metal (RE-TM) alloy films for M-O recording. In this paper the mechanism of M-O recording, optical and recording properties of RE-TM thin films were introduced. The effects of the temperature profiles on magneto-optical polar Kerr rotation angle and recording domain size have been discussed in detail. Current research results of design and performances of multi-layer RE-TM films were also presented. The writing and erasing characteristics of the thin films for phase change type are determined by plotting changes in film reflectivity against the parameters of laser power and pulse width. In this paper a phase transformation kinetics diagram illustrating the phase change process of thin films for otical datastorage is introduced. We draw heavily on our own data on InSb-based and GeTe-based alloy thin films. The most important features of properly selected P-C recording thin films, such as signal intensity, minimum crystallization time from amorphous to crystalline state, and the stability of the amorphous stage against crystallization, are discussed. The new experimental results of phase change at unequilibrium condition and appearance of metastable phases of metallic alloy thin films are also reported.
Explains how opticaltechnology works, and examines the three aspects of opticaltechnology-CD-ROM, WORM (write once, read many), and MO (magnetooptical). The focus is on MO, a combination of CD-ROM and WORM technolog...
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Explains how opticaltechnology works, and examines the three aspects of opticaltechnology-CD-ROM, WORM (write once, read many), and MO (magnetooptical). The focus is on MO, a combination of CD-ROM and WORM technologies in a rewritable platform. It is impervious to magnetic fields, can store data for 10 years or more, and is a standard SCSI-interface. The capability to be replenished with removable cartridges adds additional value to MO's standard datastorage capacity of 600 MBytes to 1 GByte. Some of the disadvantages associated with MO technology in relation to magnetic disk technology are also discussed.< >
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