Ceramic component element and ceramic component and method for the same

A ceramic component comprising:

• an insulating ceramic base with pores formed on its surface and previously fired;
• a functional ceramic sheet bonded to the insulating ceramic base and having electrical characteristics;
• and
• two or more electrodes electrically connected to the functional ceramic sheet,
• wherein the functional ceramic sheet is physically bonded to the insulating ceramic base by forming and pressing a green sheet for the functional ceramic sheet on the insulating ceramic base at constant temperature and pressure so that parts of the green sheet are forced to put into the pores and anchored, and the functional ceramic sheet is chemically bonded to the insulating ceramic base by firing the anchored green sheet in such a manner that functional oxides of the green sheet penetrate the insulating ceramic base by solid diffusion to form a diffusion bonding layer.

A ceramic component comprising:

• an insulating ceramic base with pores formed on its surface and previously fired;
• a functional ceramic sheet bonded to the insulating ceramic base and having electrical characteristics;
• an internal electrode bonded to the functional ceramic sheet in electric connection with the functional ceramic sheet;
• and
• an external electrode electrically connected with an exposed portion of the internal electrode,
• wherein the functional ceramic sheet is physically bonded to the insulating ceramic base by forming and pressing a green sheet for the functional ceramic sheet on the insulating ceramic base at constant temperature and pressure so that parts of the green sheet are forced to put into the pores and anchored, and the functional ceramic sheet is chemically bonded to the insulating ceramic base by firing the anchored green sheet in such a manner that functional oxides of the green sheet penetrate the insulating ceramic base by solid diffusion to form a diffusion bonding layer.

A ceramic component element comprising:

• an insulating ceramic base with pores formed on its surface and previously fired;
• a first functional ceramic sheet bonded to a top surface of the insulating ceramic base and having electrical characteristics;
• and
• a second functional ceramic sheet bonded to a bottom surface of the insulating ceramic base and having electrical characteristics different from those of the first functional ceramic sheet,
• wherein the functional ceramic sheets are physically bonded to the top and bottom surfaces of the insulating ceramic base by forming and pressing green sheets for the first and second functional ceramic sheets on the insulating ceramic base at constant temperature and pressure so that parts of the green sheet are forced to put into the pores and anchored, and the functional ceramic sheets are chemically bonded to the top and bottom surfaces of the insulating ceramic base by firing the anchored green sheets in such a manner that functional oxides of the green sheets penetrate the insulating ceramic base by solid diffusion to form a diffusion bonding layers.

A ceramic component element comprising:

• an insulating ceramic base with pores formed on its surface and previously fired;
• a first functional ceramic sheet bonded to the insulating ceramic base and having electrical characteristics;
• and
• a second functional ceramic sheet bonded to the first functional ceramic sheet and having electrical characteristics different from those of the first functional ceramic sheet,
• wherein the first functional ceramic sheet is physically bonded to the insulating ceramic base by forming and pressing a green sheet for the first functional ceramic sheet on the insulating ceramic base at constant temperature and pressure so that parts of the green sheet are forced to put into the pores and anchored, and the first functional ceramic sheet is chemically bonded to the insulating ceramic base by firing the anchored green sheet in such a manner that functional oxides of the green sheet penetrate the insulating ceramic base by solid diffusion to form a diffusion bonding layer.

A method of manufacturing a ceramic component element, comprising:

• forming a green sheet on an insulating ceramic base with pores formed on its surface and previously fired;
• pressing the green sheet against the insulating ceramic base so that parts of the green sheet penetrate the pores and are anchored and are physically bonded to the insulating ceramic base;
• removing a binder from the green sheet;
• firing the green sheet under a predetermined condition;
• and
• converting the green sheet into a functional ceramic sheet having electrical characteristics through the firing, and at the same time chemically bonding the functional ceramic sheet to the insulating ceramic base by a diffusion bonding layer formed by solid diffusion and penetration of functional oxides from the green sheet into the insulating ceramic base during the firing of the green sheet.

A method of manufacturing a ceramic component element, comprising:

• forming a green sheet on an insulating ceramic base with pores formed on its surface and previously fired;
• pressing the green sheet against the insulating ceramic base so that parts of the green sheet penetrate the pores and are physically bonded to the insulating ceramic base;
• removing a binder from the green sheet;
• firing the green sheet under a predetermined condition;
• converting the green sheet into a functional ceramic sheet having electrical characteristics through the firing, and at the same time chemically bonding the functional ceramic sheet to the insulating ceramic base by a diffusion bonding layer formed by solid diffusion and penetration of functional oxides from the green sheet into the insulating ceramic base during the firing of the green sheet;
• and
• forming an external electrode electrically connected with the functional ceramic sheet.