Multi-layer ceramic capacitor
A technology of ceramic capacitors and ceramics, applied in the direction of multilayer capacitors, capacitors, fixed capacitors, etc., can solve the problems of insufficient reliability, insufficient reliability of electrical connection, hindering the electrical connection of internal electrodes 102, etc., and achieves high reliability, The effect of high bonding strength
Pending Publication Date: 2021-01-19
MURATA MFG CO LTD
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Problems solved by technology
However, if more common materials of ceramics are added to the conductor layer 104, another problem may occur, that is, the common material of ceramics hinders the electrical connection between the internal electrodes 102 and the conductor layer 104, and the internal electrodes 102 and the conductor layer 104 The reliability of the connection decreases
[0009] In addition, in the multilayer ceramic capacitor 1000, there is a problem that the reliability of the electrical connection between the conductive layer 104 and the external electrode 106 is insufficient.
That is, the conductive layer 104 and the external electrode 106 are only connected in a linear manner between the end surface of the conductive layer 104 and the external electrode 106, and there is a problem that the reliability of the electrical connection is insufficient.
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no. 1 approach
[0032] exist Figure 1A , Figure 1B , figure 2 , image 3 , Figure 4 Multilayer ceramic capacitor 100 according to the first embodiment is shown in . in, Figure 1A It is a perspective view of multilayer ceramic capacitor 100 seen from the upper side (top surface side). Figure 1B It is a perspective view of multilayer ceramic capacitor 100 viewed from the lower side (mounting surface side). figure 2 is a cross-sectional view of multilayer ceramic capacitor 100, showing Figure 1A The X-X part shown by the single-dot dash arrow. image 3 It is a cross-sectional view of main parts of multilayer ceramic capacitor 100 . Figure 4 It is an exploded perspective view of the multilayer ceramic capacitor 100 .
[0033] In addition, the height direction T, the width direction W, and the length direction L of the multilayer ceramic capacitor 100 are sometimes shown in the drawings, and these directions are sometimes referred to in the following description.
[0034] The mu...
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Abstract
A multi-layer ceramic capacitor includes a ceramic multi-layer body including ceramic layers and internal electrodes that are layered, main surfaces, side surfaces, and end surfaces, a conductor layercovering each of the end surfaces of the ceramic multi-layer body and electrically connected to the internal electrodes, an insulating layer covering the conductor layer, and an external electrode electrically connected to the conductor layer. The conductor layer includes a portion that extends to a portion of each of the main surfaces of the ceramic multi-layer body.
Description
technical field [0001] The present invention relates to a laminated ceramic capacitor, and more specifically, to a laminated ceramic capacitor in which a conductor layer is formed so as to cover end surfaces of a ceramic laminate and an insulating layer is formed so as to cover the conductor layer. Background technique [0002] Japanese Patent Application Laid-Open No. 2017-175037 discloses a laminated ceramic capacitor in which a conductor layer is formed so as to cover end faces of a ceramic laminate and an insulating layer is formed so as to cover the conductor layer. In the multilayer ceramic capacitor disclosed in JP 2017-175037 A, moisture resistance is improved by covering the end faces of the ceramic laminate from which the internal electrodes are drawn with two layers of a conductor layer and an insulating layer. exist Figure 11 2017-175037A shows the multilayer ceramic capacitor 1000 disclosed in JP-A-2017-175037. in, Figure 11 is a cross-sectional view of multi...
Claims
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IPC IPC(8): H01G4/232H01G4/30
CPCH01G4/232H01G4/30H01G2/065H01G4/0085H01G4/2325H01G4/12H01G4/252H01G4/012H01G4/008
Inventor 黑须勇太若岛诚宽
Owner MURATA MFG CO LTD