THREE-TERMINAL TYPE MULTILAYER CERAMIC CAPACITOR AND METHOD FOR MANUFACTURING THE SAME

• Main Authors: KANZAKI TAISUKE, MURAMATSU SATOSHI, ONISHI KOSUKE
• Format: Patent
• Language: English; Japanese
• Published: 08.10.2020
• Subjects: BASIC ELECTRIC ELEMENTS; CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE; ELECTRICITY

To provide a three-terminal type multilayer ceramic capacitor which is small in the variation in characteristic, and which enables the achievement of a large static capacitance.SOLUTION: A three-terminal type multilayer ceramic capacitor comprises: a capacitive element 1 including a ceramic layer 1a, a first internal electrode 2 and a second internal electrode 3; a first end face electrode 4; a second end face electrode 5; a first side face electrode 6; and a second side face electrode 7. Of the three-terminal type multilayer ceramic capacitor, the length DL is 1300 μm to 1500 μm, the width DW is 1000 μm to 1200 μm, and the height DT is 570 μm to 680 μm, and the electrostatic capacitance is 12 μF to 32 μF. The first end face electrode 4, the second end face electrode 5, the first side face electrode 6, and the second side face electrode 7 each have an Ni base electrode layer, and at least one plating electrode layer. A thickness TE of the first end face electrode 4 on a first end face 1C to the length DL, and a thickness TE of the second end face electrode 5 on a second end face 1D to the length DL are 0.73% to 3.00%.SELECTED DRAWING: Figure 2 【課題】 特性のばらつきが小さく、かつ、大きな静電容量を得ることが可能な３端子型積層セラミックコンデンサを提供する。【解決手段】 セラミック層１ａと第１内部電極２と第２内部電極３とを有する容量素子１と、第１端面電極４と、第２端面電極５と、第１側面電極６と、第２側面電極７と、を備え、長さ寸法ＤＬが、１３００μｍ以上、１５００μｍ以下であり、幅寸法ＤＷが、１０００μｍ以上、１２００μｍ以下であり、高さ寸法ＤＴが、５７０μｍ以上、６８０μｍ以下であり、静電容量が、１２μＦ以上、３２μＦ以下であり、第１端面電極４、第２端面電極５、第１側面電極６、第２側面電極７が、Ｎｉ下地電極層と、少なくとも１層のめっき電極層とを有し、長さ寸法ＤＬに対する、第１端面電極４の第１端面１Ｃにおける厚さＴＥ、および、第２端面電極５の第２端面１Ｄにおける厚さＴＥが、０．７３％以上、３．００％以下であるものとする。【選択図】図２