Monolithic Ceramic Component Cutting Method for Electrode Exposure
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Solution Overview
Problem
Existing methods for manufacturing monolithic ceramic electronic components with thin ceramic layers often result in short circuits between internal electrodes, compromising the performance and reliability of these components.
Innovation Solution
A method involving the preparation of ceramic laminates with thin ceramic layers, where the second cutting step is performed by moving a cutting blade in the length or width direction to expose internal electrodes, reducing the likelihood of short circuits and enabling the production of high-performance components with thin ceramic layers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the thickness of ceramic layers between internal electrodes is reduced to improve component performance, then the capacitance and electrical performance are improved, but short circuits occur between internal electrodes
Solution Approach 1:
The patent applies preliminary action by performing the first cutting step to expose internal electrodes at end surfaces before the second cutting step. This sequence ensures that electrodes are properly positioned and exposed prior to lateral cutting, preventing short circuits that would occur if cutting directions were reversed or simultaneous. The preliminary exposure of electrodes allows subsequent cutting to proceed without compromising electrical isolation.
Solution Approach 2:
The patent resolves the contradiction by changing the cutting dimension from vertical (thickness direction) to lateral (length/width direction) in the second cutting step. Instead of continuing to cut in the thickness direction which causes electrode deformation and short circuits, the cutting blade moves in the length or width direction, effectively transitioning to another spatial dimension for the cutting operation while maintaining the thin ceramic layer structure.
2Productivity
If conventional cutting methods are used to manufacture thin ceramic layer components, then production efficiency is maintained, but short circuits occur between internal electrodes
Solution Approach 1:
The patent applies segmentation by dividing the cutting process into two distinct steps: a first cutting step that cuts in the thickness direction to expose electrodes at end surfaces, and a second cutting step that cuts in the length or width direction to complete the component shaping. This segmentation allows each cutting operation to be optimized for its specific purpose, maintaining productivity while preventing the electrode shorting that occurs in conventional single-direction cutting methods.
3Manufacturing precision
If internal electrodes are exposed by cutting in the thickness direction, then electrode exposure is achieved, but electrode deformation and short circuits occur
Solution Approach 1:
The patent applies inversion by reversing the conventional cutting sequence and direction. Instead of cutting in the thickness direction to expose electrodes (which causes deformation), the first cutting step exposes electrodes at end surfaces, and the second cutting step proceeds in the lateral direction. This inverted approach achieves the necessary electrode exposure while maintaining electrode structural integrity and preventing short circuits.
Data Source
AI summary
A ceramic green sheet laminate is produced by stacking ceramic green sheets, each including conductive films for forming first or second internal electrodes on a surface thereof. A first cutting step is performed in which the ceramic green sheet laminate is cut to form first and second end surfaces at which the first or second internal electrodes are exposed. A second cutting step is performed in which the ceramic green sheet laminate is cut to form first and second side surfaces at which the first and second internal electrodes are exposed. In the second cutting step, the ceramic green sheet laminate is pressed and cut by moving a cutting blade in a length direction or a width direction.