Method for producing ceramic multi-layer components
AssigneeEpcos AG
InventorsMarion Ottlinger, Robert Krumphals, Alexander Glazunov
Life of this patent
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Abstract
A method can be used for producing ceramic multilayer components. The method includes providing green layers for the ceramic multilayer components, stacking the green layers into a stack, and subsequently compressing the stack to form a block. Furthermore, the method includes isolating the block into partial blocks that each have a longitudinal direction, thermally treating the partial blocks, subsequently mechanically machining surfaces of the partial blocks, and providing the partial blocks with outer electrodes and isolating the partial blocks in each case transversely to the longitudinal direction into individual ceramic multilayer components.
Claims18
A method for producing ceramic multilayer components, the method comprising:
- providing green layers with inner electrode layers for the ceramic multilayer components;
- stacking the green layers into a stack and subsequently compressing the stack to form a block;
- separating the block into partial blocks, each of the partial blocks having a longitudinal direction;
- thermally treating the partial blocks, wherein thermally treating comprises decarbonizing the partial blocks under reduced oxygen partial pressure;
- mechanically machining by grinding surfaces of the partial blocks after thermally treating, wherein mechanically machining of the surfaces comprises grinding opposite lateral surfaces, a surface of a bottom side and a surface of a top side of each of the partial blocks;
- providing the partial blocks with outer electrodes;
- and
- separating the partial blocks into individual ceramic multilayer components, each of the partial blocks being isolated transversely to the longitudinal direction,
- wherein, after separating the partial blocks into the individual ceramic multilayer components, no further machining by grinding is performed,
- wherein each individual ceramic multilayer component is a piezoelectric multilayer component, and
- wherein the inner electrode layers are copper electrode layers.
A method for producing ceramic multilayer components, the method comprising:
- providing green layers with inner electrode layers for the ceramic multilayer components;
- stacking the green layers into a stack and subsequently compressing the stack to form a block;
- separating the block into partial blocks, each of the partial blocks having a longitudinal direction;
- thermally treating the partial blocks, wherein thermally treating comprises decarbonizing the partial blocks under reduced oxygen partial pressure;
- mechanically machining by grinding surfaces of the partial blocks after thermally treating, wherein mechanically machining of the surfaces comprises grinding opposite lateral surfaces, a surface of a bottom side and a surface of a top side of each of the partial blocks;
- providing the partial blocks with outer electrodes;
- and
- separating the partial blocks into individual ceramic multilayer components, each of the partial blocks being isolated transversely to the longitudinal direction, wherein, after separating the partial blocks into the individual ceramic multilayer components, no further machining by grinding is performed,
- wherein the inner electrode layers are copper electrode layers, and
- wherein each individual ceramic multilayer component is a piezoelectric actuator.
A method for producing ceramic multilayer components, the method comprising:
- providing green layers with inner electrode layers for the ceramic multilayer components;
- stacking the green layers into a stack and subsequently compressing the stack to form a block;
- separating the block into partial blocks, each of the partial blocks having a longitudinal direction;
- thermally treating the partial blocks, wherein thermally treating comprises decarbonizing the partial blocks under reduced oxygen partial pressure;
- mechanically machining by grinding surfaces of the partial blocks after thermally treating, wherein mechanically machining of the surfaces comprises grinding opposite lateral surfaces, a surface of a bottom side and a surface of a top side of each of the partial blocks;
- providing the partial blocks with outer electrodes;
- and
- separating the partial blocks into individual ceramic multilayer components, each of the partial blocks being isolated transversely to the longitudinal direction,
- wherein, after separating the partial blocks into the individual ceramic multilayer components, no further machining by grinding is performed,
- wherein the inner electrode layers are copper electrode layers, and
- wherein each individual ceramic multilayer component is a multilayer capacitor.
Dependencies are inferred from the claim text.