Multilayer ceramic electronic component

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United States of America Patent

PATENT NO 8456800
APP PUB NO 20120026642A1
SERIAL NO

13190033

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Abstract

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A multilayer ceramic electronic component comprises an element body obtained by stacking dielectric layers (thickness t1) and electrode layers (thickness t2). The dielectric layer includes a compound expressed by ABO3 (A includes Ba, and may include Ca or Sr; and B includes Ti, and may include Zr or Hf), and includes 0.75 to 2.0 moles of MgO, 0.4 to 1.0 mole of an oxide of Y, Dy, Ho and the like in terms of the oxide, and 0.4 to 0.8 mole of SiO2 per 100 moles of the compound. A segregation phase containing Mg is formed in at least a part of an electrode missing portion. Line coverage of the electrode layer is 60 to 90% and relations of 0.3 μm≦t1≦2.0 and 0.3 μm≦t2<1.0 μm are fulfilled.

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Patent Owner(s)

Patent OwnerAddress
TDK CORPORATIONTOKYO 103-6128

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Endo, Makoto Tokyo, JP 102 720
Hosono, Masakazu Tokyo, JP 24 142
Kaneko, Toshihiko Tokyo, JP 87 1216
Masuko, Taisuke Tokyo, JP 15 96
Matsuyama, Yasushi Tokyo, JP 12 197
Sato, Yusuke Tokyo, JP 150 783
Takeda, Saori Tokyo, JP 10 65
Tanaka, Hirobumi Tokyo, JP 26 202
Watanabe, Yasuo Tokyo, JP 125 2014
Yamazaki, Ryutaro Tokyo, JP 22 140

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