Title:
TITANIC ACID BARIUM SEMICONDUCTOR PORCELAIN MATERIAL AND ITS MANUFACTURE
Document Type and Number:
Japanese Patent JPH05291630
Kind Code:
A
Abstract:
PURPOSE:To get a barium titanate semiconductor porcelain material, which is made use of as a PTC thermistor capable of getting a high number of jumping columns with low resistivity by adding a specified element to a semiconductor material, wherein barium titanate material and a semiconductorizer are dissolved solidly. CONSTITUTION:This barium titanate semiconductor porcelain material is constituted by adding each element of Sb, Mn, Al, Si, and Li by 0.10-0.14mol as Sb2O3, 0.01-0.12mol as MnO2, 0.1-0.44mol as Al2O3, 0.1-6mol as SiO2, and 0.01-0.4mol as Li2O to 100mol of semiconductor material, wherein barium titanate material containing at least 20mol% strontium and a semiconductorizer consisting of trivalent or quinquevalent elements are dissolved as a solid solution. This semiconductor porcelain material is manufactured by manufacturing barium titanate material containing St, first, and adding and mixing a semiconductorizer into this, and baking them so as to dissolve as a solid solution each material.
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Inventors:
WAKABAYASHI TOSHIKATSU
SUGANO YOSHIMI
OCHIAI KOGAKU
SUGANO YOSHIMI
OCHIAI KOGAKU
Application Number:
JP9123392A
Publication Date:
November 05, 1993
Filing Date:
April 10, 1992
Export Citation:
Assignee:
JGC CORP
International Classes:
C01G23/00; C04B35/46; H01L37/00; (IPC1-7): H01L37/00; C01G23/00; C04B35/46
Attorney, Agent or Firm:
Masatake Shiga (2 outside)