• 专利标题:   Ceramic electronic component e.g. multi-layered ceramic capacitor (MLCC), has external electrode that is placed on main portion and connected to internal electrode, and carbon layer that is provided with conductivity.
  • 专利号:   KR2023052711-A
  • 发明人:   JUNG S H, JANGYEOL L, CHO S
  • 专利权人:   SAMSUNG ELECTROMECHANICS CO
  • 国际专利分类:   H01G004/012, H01G004/12, H01G004/30
  • 专利详细信息:   KR2023052711-A 20 Apr 2023 H01G-004/12 202336 Pages: 12
  • 申请详细信息:   KR2023052711-A KR136059 13 Oct 2021
  • 优先权号:   KR136059

▎ 摘  要

NOVELTY - The component has a body portion (110) including a dielectric layer (111) and internal electrodes (121), and an external electrode (131) placed on the body and connected to the internal electrodes. A conductive carbon layer is coated with graphene. The external electrode comprises a conductor layer placed on a body, and is connected to an internal electrode. A metal layer covers the carbon layer, where the metal layer includes a nickel layer and a tin layer. The carbon layer has thickness of 100-500 nanometers. The metal layer is thinner than each of the conductor layer and the copper layer. The conductor layer includes a copper (Cu) layer, and metal layer includes nickel (Ni) layer and tin (Sn) layer. USE - Ceramic electronic component e.g. multi-layered ceramic capacitor (MLCC). ADVANTAGE - The ceramic electronic component has enhanced moisture resistance. The increased moisture transmittance due to the thinned external electrode thickness is reduced. DESCRIPTION OF DRAWING(S) - The drawing shows a perspective view of ceramic electronic component. 110Body portion 111Dielectric layer 121Internal electrodes 122Second internal electrodes 131External electrodes 132Second external electrode