WIRING SUBSTRATE AND PRODUCTION METHOD THEREFOR

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United States of America Patent

APP PUB NO 20150313018A1
SERIAL NO

14650970

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A wiring substrate includes an insulation substrate, a through hole, an upper-surface-side land conductor, a lower-surface-side land conductor, and a through hole conductor. The insulation substrate includes a first insulation layer, a second insulation layer, and a glass fiber layer provided between the first and second insulation layers. The through hole has a diameter which decreases from the upper surface of the insulation substrate toward the interior thereof, which becomes smallest at the glass fiber layer, and which increases from the glass fiber layer toward the lower surface of the insulation substrate. The upper-surface-side land conductor and the lower-surface-side land conductor respectively cover the upper-surface-side and lower-surface-side openings of the through hole. The through hole conductor is formed in the through hole. The upper-surface-side opening of the through hole has a diameter larger than that of the lower-surface-side opening of the through hole, and the upper-surface-side land conductor has a diameter larger than that of the lower-surface-side land conductor.

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Patent Owner(s)

Patent OwnerAddress
NGK SPARK PLUG CO LTD14-18 TAKATSUJI-CHO MIZUHO-KU NAGOYA-SHI AICHI 467-8525

International Classification(s)

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  • 2013 Application Filing Year
  • H01L Class
  • 22267 Applications Filed
  • 20713 Patents Issued To-Date
  • 93.03 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances2013201420152016201720182019202020212022202320240255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
MAEDA, Shinnosuke Phoenix, US 32 380

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Patent Citation Ranking

  • 4 Citation Count
  • H01L Class
  • 10.46 % this patent is cited more than
  • 10 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges1377800619237183722181459473474314501 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 7071 - 8081 - 9091 - 100100 +05001000150020002500300035004000450050005500600065007000750080008500

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