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Author

Tetsu Tanaka

Other affiliations: NTT DoCoMo, Tokyo Medical and Dental University, Fujitsu  ...read more
Bio: Tetsu Tanaka is an academic researcher from Tohoku University. The author has contributed to research in topics: Wafer & Chip. The author has an hindex of 38, co-authored 406 publications receiving 10375 citations. Previous affiliations of Tetsu Tanaka include NTT DoCoMo & Tokyo Medical and Dental University.
Topics: Wafer, Chip, Wafer bonding, Interposer, Flip chip


Papers
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Journal ArticleDOI
Tetsu Tanaka1, Motonobu Mihara1, Ken Tamanoi1, Toshio Sugimoto1, Keiji Shono1 
TL;DR: In this article, a trilayer double-mask magnetically induced super resolution (MSR) media and a conventional optical system were used for 3.5-in magneto-optical (MO) disks.
Abstract: This paper discusses the probable capacity of 3.5-in magneto-optical (MO) disks using trilayer double-mask magnetically induced super resolution (MSR) media and a conventional optical system. We measured the bit error rate of the double-mask MSR media on a land/groove substrate with a track pitch of 0.6 /spl mu/m. We obtained bit error rates as low as 1e-7 for a minimum bit length of 0.24 /spl mu/m. The recording power margin was /spl plusmn/11.3% and the tilt margin was /spl plusmn/0.7/spl deg/. These results indicate that a capacity of over 2.4 GB is possible for a 3.5-in MO disk using an optical head with a 685-nm laser diode having a lens numerical aperture of 0.55. The capacity corresponds to an areal density of 4.48 Gbit/in/sup 2/.

1 citations

Proceedings ArticleDOI
19 Dec 2018
TL;DR: The process integration of the FlexTrateTM is described using massively parallel capillary self-assembly and a new single stress buffer layer technologies to form fine-pitch interconnection between the embedded neighboring chips and characterize the electrical/mechanical properties.
Abstract: We fabricate FlexTrateTM that is highly integrated bendable and/or rollable electronic systems in which various Si and/or III–V chips are embedded in elastomers and interconnected at the wafer level. This paper describes the process integration of the FlexTrateTM using massively parallel capillary self-assembly and a new single stress buffer layer technologies to form fine-pitch interconnection between the embedded neighboring chips and characterize the electrical/mechanical properties.

1 citations

Patent
24 Aug 2017
TL;DR: In this paper, a non-transitory computer-readable recording medium stores a data acquisition program that causes a computer to execute a process including: extracting first data and second data that are separated from each other by a predetermined tag or symbol, from a document written in HTML; displaying the extracted first data in an associated manner; and specifying a position of a tag included in the document on a hierarchical structure with respect to the first data or the second data in a document to allow registration of the position on the hierarchical structure.
Abstract: A non-transitory computer-readable recording medium stores a data acquisition program that causes a computer to execute a process including: extracting first data and second data that are separated from each other by a predetermined tag or symbol, from a document written in HTML; displaying the extracted first data and the extracted second data in an associated manner; and specifying a position of a tag included in the document on a hierarchical structure with respect to the first data or the second data in the document to allow registration of the position on the hierarchical structure, upon detecting that the displayed first data or the displayed second data is selected.

1 citations

Journal ArticleDOI
TL;DR: This work evaluated the accuracy of quantitative flow ratio (QFR) from three-dimensional quantitative coronary angiography and Thrombolysis in Myocardial Infarction frame count without drug induced hyperemia.

1 citations

Proceedings ArticleDOI
TL;DR: In this work, effects of edge enhancement function implemented in retinal prosthesis chip were investigated in detail, and ultralow power operation of the chip was clearly demonstrated.
Abstract: To restore visual sensation of blind patients suffering from age-related macular degeneration (AMD) and retinitis pigmentosa (RP), retinal prostheses have been developed by several institutes. Since the retinal cells would be damaged by heating, the power consumption of the retinal prosthesis chip should be kept less than 19 mW/mm 2 . In this work, to reduce the power consumption of retinal prosthesis chip, effects of edge enhancement function implemented in retinal prosthesis chip were investigated in detail, and ultralow power operation of the chip was clearly demonstrated.

1 citations


Cited by
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Journal ArticleDOI
11 Jun 1998-Nature
TL;DR: The complete genome sequence of the best-characterized strain of Mycobacterium tuberculosis, H37Rv, has been determined and analysed in order to improve the understanding of the biology of this slow-growing pathogen and to help the conception of new prophylactic and therapeutic interventions.
Abstract: Countless millions of people have died from tuberculosis, a chronic infectious disease caused by the tubercle bacillus. The complete genome sequence of the best-characterized strain of Mycobacterium tuberculosis, H37Rv, has been determined and analysed in order to improve our understanding of the biology of this slow-growing pathogen and to help the conception of new prophylactic and therapeutic interventions. The genome comprises 4,411,529 base pairs, contains around 4,000 genes, and has a very high guanine + cytosine content that is reflected in the biased amino-acid content of the proteins. M. tuberculosis differs radically from other bacteria in that a very large portion of its coding capacity is devoted to the production of enzymes involved in lipogenesis and lipolysis, and to two new families of glycine-rich proteins with a repetitive structure that may represent a source of antigenic variation.

7,779 citations

Journal ArticleDOI
TL;DR: Antiinflammatory therapy targeting the interleukin‐1β innate immunity pathway with canakinumab at a dose of 150 mg every 3 months led to a significantly lower rate of recurrent cardiovascular events than placebo, independent of lipid‐level lowering.
Abstract: BackgroundExperimental and clinical data suggest that reducing inflammation without affecting lipid levels may reduce the risk of cardiovascular disease. Yet, the inflammatory hypothesis of atherothrombosis has remained unproved. MethodsWe conducted a randomized, double-blind trial of canakinumab, a therapeutic monoclonal antibody targeting interleukin-1β, involving 10,061 patients with previous myocardial infarction and a high-sensitivity C-reactive protein level of 2 mg or more per liter. The trial compared three doses of canakinumab (50 mg, 150 mg, and 300 mg, administered subcutaneously every 3 months) with placebo. The primary efficacy end point was nonfatal myocardial infarction, nonfatal stroke, or cardiovascular death. ResultsAt 48 months, the median reduction from baseline in the high-sensitivity C-reactive protein level was 26 percentage points greater in the group that received the 50-mg dose of canakinumab, 37 percentage points greater in the 150-mg group, and 41 percentage points greater in t...

5,660 citations

Journal ArticleDOI
31 Aug 2000-Nature
TL;DR: It is proposed that the size and complexity of the P. aeruginosa genome reflect an evolutionary adaptation permitting it to thrive in diverse environments and resist the effects of a variety of antimicrobial substances.
Abstract: Pseudomonas aeruginosa is a ubiquitous environmental bacterium that is one of the top three causes of opportunistic human infections. A major factor in its prominence as a pathogen is its intrinsic resistance to antibiotics and disinfectants. Here we report the complete sequence of P. aeruginosa strain PAO1. At 6.3 million base pairs, this is the largest bacterial genome sequenced, and the sequence provides insights into the basis of the versatility and intrinsic drug resistance of P. aeruginosa. Consistent with its larger genome size and environmental adaptability, P. aeruginosa contains the highest proportion of regulatory genes observed for a bacterial genome and a large number of genes involved in the catabolism, transport and efflux of organic compounds as well as four potential chemotaxis systems. We propose that the size and complexity of the P. aeruginosa genome reflect an evolutionary adaptation permitting it to thrive in diverse environments and resist the effects of a variety of antimicrobial substances.

4,220 citations