Method of manufacturing multilayer capacitor

Patent metadata

Field	Value
Publication number	US-12327684-B2
Application number	US-202217959575-A
Country	US
Kind code	B2
Filing date	Oct 4, 2022
Priority date	Nov 25, 2021
Publication date	Jun 10, 2025
Grant date	Jun 10, 2025

Abstract

A method of manufacturing a multilayer capacitor includes preparing a guide frame, forming at least one dielectric layer between at least two surfaces of the guide frame such that at least a portion of each side surface of the at least one dielectric layer is in contact with the at least two surfaces, forming at least one internal electrode on an upper surface of the at least one dielectric layer between at least two surfaces of the guide frame using an inkjet printing method, and separating at least two surfaces of the guide frame from the at least one dielectric layer.

First claim

What is claimed is:

1. A method of manufacturing a multilayer capacitor, the method comprising:
preparing a guide frame;
forming at least one dielectric layer between at least two surfaces of the guide frame such that at least a portion of each side surface of the at least one dielectric layer is in contact with the at least two surfaces of the guide frame;
forming at least one internal electrode on an upper surface of the at least one dielectric layer between the at least two surfaces of the guide frame using an inkjet printing method; and
separating the at least two surfaces of the guide frame from the at least one dielectric layer,
wherein the forming at least one internal electrode and the forming at least one dielectric layer are alternately performed two or more times by the inkjet printing method to form a plurality of internal electrodes and a plurality of dielectric layers.

2. The method of claim 1 ,
wherein the guide frame includes at least four surfaces surrounding the at least one dielectric layer and the at least one internal electrode and in contact with at least a portion of each side surface of the at least one dielectric layer, and
wherein the at least four side surfaces include the at least two surfaces.

3. The method of claim 2 , wherein the guide frame further includes a lower surface supporting the at least one dielectric layer and the at least one internal electrode.

4. The method of claim 3 , wherein the lower surface of the guide frame includes a thermoplastic insulating material, different from a material of the at least four surfaces.

5. The method of claim 3 , wherein the separating includes separating the at least four surfaces from the lower surface of the guide frame.

6. The method of claim 1 , wherein the separating includes separating the at least two surfaces of the guide frame from the at least one dielectric layer after a structure in which the at least one dielectric layer and the at least one internal electrode are laminated is compressed in a lamination direction.

7. The method of claim 1 , further comprising, after the separating the at least two surfaces of the guide frame from the at least one dielectric layer, cutting a structure in which the at least one dielectric layer and the at least one internal electrode are laminated.

8. The method of claim 1 , wherein the forming at least one internal electrode includes forming the at least one internal electrode such that at least a portion of each side surface of the at least one internal electrode is in contact with the at least two surfaces of the guide frame.

9. The method of claim 1 ,
wherein the forming at least one dielectric layer includes, after one of the plurality of internal electrodes is formed on one of the plurality of dielectric layers, forming another one of the plurality of dielectric layers while leaving a space in which the one of the plurality of internal electrodes is not formed on the one of the plurality of dielectric layers.

10. The method of claim 1 , wherein the forming at least one internal electrode includes forming the at least one internal electrode such that each of the at least one internal electrode has a thickness of 0.25 μm or less.

Assignees

• Samsung Electro Mech

Inventors

• Kim Min Seop
• Jo Ji Hong
• Cha Kyoung Jin

Classifications

• H01G4/30 Primary

  Stacked capacitors (H01G4/33 takes precedence) · CPC title

• H01G4/12

  Ceramic dielectrics {(H01G4/085 takes precedence)} · CPC title

• Y02E60/13

  Energy storage using capacitors · CPC title

• H01G4/012 Primary

  Form of non-self-supporting electrodes · CPC title

• H01G4/1209

  characterised by the ceramic dielectric material (H01G4/1272, H01G4/1281 take precedence) · CPC title