Method and device for manufacturing multi-layer ceramic component by curtain type shower coating
A multilayer ceramic and flow coating technology, applied in the manufacture/assembly of piezoelectric/electrostrictive devices, electrical components, inductors/transformers/magnets, etc. , unable to adapt to the needs of the industry, etc., to achieve the effects of overcoming extrusion deformation, less loss of slurry, and improving reliability
Active Publication Date: 2010-06-09
FUJIAN TORCH ELECTRON TECH CO LTD
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Due to the above deficiencies in the existing manufacturing technology, it cannot meet the needs of the industry and must be improved
[0011] On the other hand, although the flow coating method and equipment have been used for the flat coating of paints and coatings, for example, the "coating method, coating product and coating device for substrates" disclosed in the Chinese invention patent of CN1199737C with the ", but there is no precedent for the application in the manufacture of multilayer ceramic components
Because it is still a technical problem to make ceramic dielectric paste into multilayer ceramic components by flow coating method, and in the prior art, no enlightenment in this regard is given
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0034] best practice
[0035] refer to figure 1 , the method and device for manufacturing multilayer ceramic capacitors by curtain coating are described in detail.
[0036] First, a slurry comprising a ceramic dielectric material and a solvent is prepared. The practice of the present invention is not limited by the specific composition of the ceramic dielectric material and solvent and the method of slurry preparation. In fact, currently known ceramic dielectric materials, solvents, and methods of preparing slurry are applicable. The slurry may contain a single ceramic dielectric material or a mixture of materials. For example, the dielectric material can be barium titanate ceramic dielectric material. The solvent uses an organic solvent, such as toluene, ethanol, acetone, isobutanol, n-propyl acetate, etc. A certain amount of dispersant and viscous agent can be added, and the ceramic slurry can be prepared by dispersing and mixing with a ball mill.
[0037] When in use,...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| thickness | aaaaa | aaaaa |
| sintering temperature | aaaaa | aaaaa |
| sintering temperature | aaaaa | aaaaa |
Login to View More
Abstract
The invention relates to a method for manufacture multi-layer ceramic element by tent showing coating, which comprises the following steps: in the first step, allowing serum including ceramic electricmedium material and solvent to cycle and form a continuous showing tent which vertically flows down with predefined flow rate; in the second step, allowing a substrate pass through the showing tent in predefined transmitting speed along the horizontal direction and form an electric medium layer by spreading; in the third step, drying the electric medium layer; in the fourth step, forming a internal electrode on the dried electric medium layer; in the fifth step, drying the internal electrode; in the sixth step, repeating the second to the fifth steps to from a ceramic overlapping body with predefined layers; in the seventh step, cutting the ceramic overlapping body to from cut lump; in the eighth step, separating the cut lump from the substrate and performing processing of chamfer angle;in the ninth step, sintering; and in the tenth step, forming the external electrode in the ceramic sintering body. The invention further relates to a tent showing coating device. The multi-layer ceramic element with high stability can be manufactured by the method and the device of the invention.
Description
technical field [0001] The invention relates to a method and a device for manufacturing a multilayer ceramic element, in particular to a method for manufacturing a multilayer ceramic element in which a dielectric layer is continuously formed by curtain coating, and a curtain coating device. Background technique [0002] With the development of high-density surface assembly of electronic components, more and more types of multilayer ceramic components are now used. In addition to the most common multilayer ceramic capacitors, they also include multilayer chip inductors and multilayer piezoelectric ceramic components. , multi-layer surge absorber, etc. From a structural point of view, a multilayer ceramic element includes a stack formed by stacking a plurality of ceramic dielectric layers, internal electrodes formed between each ceramic dielectric layer, and external electrodes provided at both ends of the stack and electrically connected to the internal electrodes constitute...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H01G4/30H01G4/12H01G4/005H01F17/00H01F41/00H01L41/22H01L41/083C04B35/622H10N30/05H10N30/081H10N30/50
Inventor 蔡明通
Owner FUJIAN TORCH ELECTRON TECH CO LTD