IP Library Granted Patent US 8,674,234
Granted Patent B2
US 8,674,234 · App. 12/943,430 · Granted Mar 18, 2014

Multilayer ceramic capacitor mounting structure and multilayer ceramic capacitor

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Quick Facts
Patent No.
US 8,674,234
App. No.
12/943,430
Granted
Mar 18, 2014
Kind
B2
Abstract

A multilayer ceramic capacitor has an element body formed by alternately laminating a plurality of dielectric layers and a plurality of inner electrodes. On a substrate having a mounting surface provided with at least two lands, the multilayer ceramic capacitor is mounted such that the inner electrodes are parallel to the mounting surface. A multilayer ceramic capacitor mounting structure satisfies T f /T>0.1 and 300≦ε r ≦2800, where T is the height of the multilayer ceramic capacitor, T f is the outer covering thickness of the element body, and ε r is the relative permittivity of the dielectric layers, and 0.6≦W p /W≦1.0, where W is the width of the multilayer ceramic capacitor, and W p is the size of the land in a direction corresponding to the width of the multilayer ceramic capacitor.

Claims (20)

1. A multilayer ceramic capacitor mounting structure comprising:

a multilayer ceramic capacitor having an element body formed by alternately laminating a plurality of dielectric layers and a plurality of inner electrodes,

wherein:

the multilayer ceramic capacitor is mounted to a substrate having a mounting surface provided with at least two lands;

the multilayer ceramic capacitor is mounted to the two lands such that the inner electrodes are parallel to the mounting surface;

T f /T>0.1 and 300≦ε r ≦2800, where T is a height of the multilayer ceramic capacitor, T f is an outer covering thickness of the element body, and ε r is a relative permittivity of the dielectric layers;

the height T is in a range of from 2350 to 2700 μm;

the thickness T f is in a range of from 245 to 420 μm; and

0.6≦W p /W≦1.0, where W is a width of the multilayer ceramic capacitor, and W p is a size of the land in a direction corresponding to the width of the multilayer ceramic capacitor.

2. A multilayer ceramic capacitor mounting structure according to claim 1 , wherein L d /L>1.0, where:

L is a length of the multilayer ceramic capacitor, and

L d is a distance between outer ends of the two lands.

3. A multilayer ceramic capacitor having an element body formed by alternately laminating a plurality of dielectric layers and a plurality of inner electrodes;

wherein:

T f /T>0.1 and 300≦ε r ≦2800, where:

T is a height of the multilayer ceramic capacitor,

T f is an outer covering thickness of the element body, and

ε r is a relative permittivity of the dielectric layers;

the height T is in a range of from 2350 to 2700 μm; and

the thickness T f is in a range of from 245 to 420 μm.

Assignments (2)
CHANGE OF ADDRESS Recorded Jun 12, 2013
From: TDK CORPORATION
To: TDK CORPORATION
Reel/Frame 030651/0687 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 10, 2010
From: YOSHII, AKITOSHI; HASEBE, KAZUYUKI; KUBO, KEIKO; KATAOKA, NARUKI
To: TDK CORPORATION
Reel/Frame 025304/0068 →