Development of passive electronic components for instrumentation of improved geothermal logging tools and components. Annual progress report

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Short term objectives for well-logging instrumentation are circuits which can operate at temperatures in the range 275/sup 0/C to 350/sup 0/C; the medium term goal is operation up to 500/sup 0/C, and the long term goal is to achieve operation at 1000/sup 0/C. It is apparent that useful electronic circuits will require the combination of both passive components and active devices. In order to meet the compatibility requirements, the basic technology which has been selected in this project is the chemical vapor deposition of metal interconnections, resistor material, dielectric material and passivating material. It is to be emphasized that this ... continued below

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Pages: 39

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Raymond, L.S.; Hamilton, D.J. & Kerwin, W.J. October 20, 1977.

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Short term objectives for well-logging instrumentation are circuits which can operate at temperatures in the range 275/sup 0/C to 350/sup 0/C; the medium term goal is operation up to 500/sup 0/C, and the long term goal is to achieve operation at 1000/sup 0/C. It is apparent that useful electronic circuits will require the combination of both passive components and active devices. In order to meet the compatibility requirements, the basic technology which has been selected in this project is the chemical vapor deposition of metal interconnections, resistor material, dielectric material and passivating material. It is to be emphasized that this is a thin-film, not thick-film, technology which is compatible with the processing methods used in fabricating either semiconductor or integrated thermionic devices, and produces components which are electrically compatible with those devices. The investigation in this project is primarily directed toward tungsten metallization, tungsten-silicon resistors, and silicon nitride dielectric and passivation.

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Pages: 39

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Dep. NTIS, PC A03/MF A01.

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  • Report No.: COO-4081-2
  • Grant Number: EY-76-S-02-4081
  • DOI: 10.2172/5101794 | External Link
  • Office of Scientific & Technical Information Report Number: 5101794
  • Archival Resource Key: ark:/67531/metadc1055167

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Office of Scientific & Technical Information Technical Reports

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  • October 20, 1977

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  • Jan. 22, 2018, 7:23 a.m.

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  • Jan. 25, 2018, 3:38 p.m.

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Raymond, L.S.; Hamilton, D.J. & Kerwin, W.J. Development of passive electronic components for instrumentation of improved geothermal logging tools and components. Annual progress report, report, October 20, 1977; United States. (digital.library.unt.edu/ark:/67531/metadc1055167/: accessed January 20, 2019), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.