• Title, Summary, Keyword: ATE

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The Study on Improvement of ATE Reliability in Production Phase (무기체계 양산단계 자동화 시험장비(ATE) SW 신뢰성 향상 방안 연구)

  • Yoon, Young-Ho;Ku, Ki-Young;Keum, Jong-Joo;Hwang, Un-Hee;Woo, Soon
    • Journal of the Institute of Electronics Engineers of Korea SC
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    • v.47 no.6
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    • pp.19-26
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    • 2010
  • Nowadays, the high technology weapons system has been developed and the importance of ATE which measures the test specification is growing bigger and bigger. So the ATE software reliability becomes critical but the regulation of ATE development/management is less inadequate than that of DoD. In this paper, the improvement way of the ATE software reliability verification and ATE development/management processes were proposed.

Implementation of ATE to Maintain Pre-Amplifier of Thermal Imaging System (열상장비 전단증폭부 정비용 ATE의 구현)

  • Park, Jai-Hyo;Kim, Han-Kyung
    • Journal of the Institute of Electronics Engineers of Korea SC
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    • v.49 no.1
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    • pp.80-87
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    • 2012
  • We have developed the ATE(Automatic Test Equipment) system for the performance test of pre-amplifier of thermal imaging devices. The device regenerates the electronic signals of photon detection module which is normally in weak energy, for the image signals processing. Previous ATE system was primarily and actively developed in the field of semiconductor devices quality parts inspection. Recently, it has been studied in the field of performance testing of equipment. In the field of thermal performance test equipment, however, it lacks the study of ATE compared to other areas, which causes the maintenance related to the core of military thermal imaging system maintenance to be limited. In this paper, a new study of ATE in the field of thermal imaging system is done. It is designed to be used universally for the ATE system with different types of circuit card of thermal imaging system by adopting matrix relays. Using the developed ATE measuring the pre-amplifier amplitude, an average amplified amplitude of 2.71Vpp was measured which confirms that it is within the range of theoretical analysis and also verifies the good performance of the developed ATE.

Tester Structure Expression Language and Its Application to the Environment for VLSI Tester Program Development

  • Sato, Masayuki;Wakamatsu, Hiroki;Arai, Masayuki;Ichino, Kenichi;Iwasaki, Kazuhiko;Asakawa, Takeshi
    • Journal of Information Processing Systems
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    • v.4 no.4
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    • pp.121-132
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    • 2008
  • VLSI chips have been tested using various automatic test equipment (ATE). Although each ATE has a similar structure, the language for ATE is proprietary and it is not easy to convert a test program for use among different ATE vendors. To address this difficulty we propose a tester structure expression language, a tester language with a novel format. The developed language is called the general tester language (GTL). Developing an interpreter for each tester, the GTL program can be directly applied to the ATE without conversion. It is also possible to select a cost-effective ATE from the test program, because the program expresses the required ATE resources, such as pin counts, measurement accuracy, and memory capacity. We describe the prototype environment for the GTL and the tester selection tool. The software size of the prototype is approximately 27,800 steps and 15 manmonths were required. Using the tester selection tool, the number of man-hours required in order to select an ATE could be reduced to 1/10. A GTL program was successfully executed on actual ATE.

Faster Ate Pairing Computation over Pairing-Friendly Ellipitic Curves Using GLV Decomposition

  • Eom, Soo Kyung;Lee, Eunjeong;Lee, Hyang-Sook
    • ETRI Journal
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    • v.35 no.5
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    • pp.880-888
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    • 2013
  • The preexisting pairings ate, $ate_i$, R-ate, and optimal-ate use q-expansion, where q is the size of the defining field for the elliptic curves. Elliptic curves with small embedding degrees only allow a few of these pairings. In such cases, efficiently computable endomorphisms can be used, as in [11] and [12]. They used the endomorphisms that have characteristic polynomials with very small coefficients, which led to some restrictions in finding various pairing-friendly curves. To construct more pairing-friendly curves, we consider ${\mu}$-expansion using the Gallant-Lambert-Vanstone (GLV) decomposition method, where ${\mu}$ is an arbitrary integer. We illustrate some pairing-friendly curves that provide more efficient pairing from the ${\mu}$-expansion than from the ate pairing. The proposed method can achieve timing results at least 20% faster than the ate pairing.

Maintainability Improvement of Automatic Test Equipment for Aircraft (비행체 자동점검장비의 유지보수성 향상 방안)

  • Seo, Min-gi;Kwon, Ki-yong;Kim, Seong-woo;Lee, Seong-woo
    • The Journal of Advanced Navigation Technology
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    • v.21 no.5
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    • pp.508-513
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    • 2017
  • Maintainability in engineering terms means ease of maintenance / management of the product. Aircraft automatic test equipment (ATE) is heavily influenced by the design changes of the unit under test(UUT) since the test procedure is developed according to the function / performance characteristics of the UUT. Moreover, if the integrated ATE is an environment that checks more than one UUT, it is not easy to maintain the ATE for the UUT design changes. Developers should be able to flexibly cope with the change of development staff by selecting an easy and clear development method to improve the maintainability of ATE. It is also necessary to limit the area affected by the UUT design change to a specific range to minimize the area to be modified. In this paper, we propose ATE development method which focuses on maintenance improvement based on the aircraft ATE development process.

Ablation of Arg-tRNA-protein transferases results in defective neural tube development

  • Kim, Eunkyoung;Kim, Seonmu;Lee, Jung Hoon;Kwon, Yong Tae;Lee, Min Jae
    • BMB Reports
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    • v.49 no.8
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    • pp.443-448
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    • 2016
  • The arginylation branch of the N-end rule pathway is a ubiquitin-mediated proteolytic system in which post-translational conjugation of Arg by ATE1-encoded Arg-tRNA-protein transferase to N-terminal Asp, Glu, or oxidized Cys residues generates essential degradation signals. Here, we characterized the ATE1−/− mice and identified the essential role of N-terminal arginylation in neural tube development. ATE1-null mice showed severe intracerebral hemorrhages and cystic space near the neural tubes. Expression of ATE1 was prominent in the developing brain and spinal cord, and this pattern overlapped with the migration path of neural stem cells. The ATE1−/− brain showed defective G-protein signaling. Finally, we observed reduced mitosis in ATE1−/− neuroepithelium and a significantly higher nitric oxide concentration in the ATE1−/− brain. Our results strongly suggest that the crucial role of ATE1 in neural tube development is directly related to proper turn-over of the RGS4 protein, which participate in the oxygen-sensing mechanism in the cells.

Effects of Non-Alcoholic Fatty Liver in Rats by Acer tagmentosum Maxim. Extract (산겨릅나무 추출물을 이용한 비알콜성 지방간 개선 효과)

  • Seo, Yoonhee;Lee, Sang-Hwa;Hwang, Hyung Seo;Choe, Soo Young
    • The Korean Journal of Food And Nutrition
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    • v.29 no.3
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    • pp.307-312
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    • 2016
  • This study was performed to investigate the effects of Acer tegmentosum Maxim. extract (ATE) on non-alcoholic fatty liver in Sprague Dawley (SD) rats. During oral administration of ATE, non-alcoholic fatty liver was induced by treatment with DL-ethionine. The lipid, total cholesterol (T-CHO) and malondialdehyde (MDA) in the liver tissue of ATE-fed rats showed lower levels, as compared to ATE-unfed rats. In ATE-fed rats, the serum levels of alanine aminotransferase (ALT), aspartate aminotransferase (AST) and ${\gamma}$-glutamyl transferase (GGT) were lower than the case of ATE-unfed rats. Oil red staining of the liver showed that the lipid deposits were decreased by feeding ATE. These results strongly indicated that ATE has positive effects of protection against non-alcoholic fatty liver formation.

Implementation of Impedance Matching Circuit for ATE (고속 ATE 시스템을 위한 임피던스 정합회로 구현)

  • Kim, Jong-Won;Seo, Yong-Bae;Lee, Yong-Sung
    • Journal of the Semiconductor & Display Technology
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    • v.5 no.4
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    • pp.17-22
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    • 2006
  • In the manufacturing processes of semiconductor, test process is important for quality of products. In the manufacturing process of dynamic memory, memory test is more important. So, automatic test equipment(ATE) is used necessarily. But, according to increase of speed of dynamic memory operation, the rapid test equipment is needed. Impedance matching between ATE and dynamic memory is expected to be an important problem for making a rapid test equipment over 1Gbps. According to increase of speed, inner impedance of ATE also works on important parameter for test. This paper is about the method that is for impedance matching of inner impedance and coaxial cable occurring in manufacturing of ATE. We proved effects of inner impedance by electric theory and verified the method of impedance matching using computer simulation.

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Predicting Environmental Concentrations of Selected Pharmaceuticals Using the PhATETM Model in Keum-River, Korea (PhATETM 모형을 적용한 금강수계 중 의약물질 농도 추정)

  • Lim, Deuck-Soon;Park, Jeong-Im
    • Journal of Environmental Health Sciences
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    • v.35 no.1
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    • pp.45-52
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    • 2009
  • In recent years, pharmaceuticals in the aquatic environment have become a matter of increasing public concern. Environmental risk assessment (ERA), including an exposure assessment, is considered the best scientifically based approach for evaluating the potential effects of pharmaceuticals on ecosystems. Computerized exposure models constitute an important tool in predicting environmental exposures of pharmaceuticals. This paper presents the applicability of an exposure model by comparing measured data of selected pharmaceuticals with predicted environmental concentrations from an exposure model. $PhATE^{TM}$ (Pharmaceutical Assessment and Transport Evaluation) model developed by the Pharmaceutical Research and Manufacturers of America (PhRMA) was adapted to run simulations for the Keum River. A set of 7 pharmaceuticals of high production in Korea was modeled. The PECs generated by the $PhATE^{TM}$ model that were then compared to the measured concentrations. The $PhATE^{TM}$ model predicted concentrations for 7 pharmaceuticals including acetaminophen, acetylsalicylic acid, erythromycin, ibuprofen, lincomycin, mefenamic acid, and naproxen were in good agreement with actual measured concentrations, which demonstrated the utility of $PhATE^{TM}$ as a predictive tool. In conclusion, $PhATE^{TM}$, although it does not intend to accurately represent reality, could be utilized for rapid predictions of the environmental concentrations of pharmaceuticals.

Design Conformance Verification of Military FM Radio Set Automatic Test Equipment (군용 FM 무전기 세트 자동시험장비(ATE) 설계 적합성 검증)

  • Kim, Byung-Jun
    • The Journal of the Korea institute of electronic communication sciences
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    • v.15 no.3
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    • pp.389-396
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    • 2020
  • In order to obtain a good quality product, a proper verification of production/test facilities must be preceded before the quality conformity inspection of the product. Among the various production/test facilities, ATE is widely used in the civilian industry such as the automotive industry, aerospace industry, semiconductor industry today. In addition, ATE is actively used in the defense industry production and performance tests. This paper is the result of systematically verifying the Design Conformance of ATS which is ATE of military FM radio set using various methods. And It is expected to be a good reference at the present time when the design conformity verification procedure for ATE for military supplies is not documented.