Method for Producing Ceramic Multi-Layer Components

Patent metadata

Field	Value
Publication number	US-2016204339-A1
Application number	US-201414913367-A
Country	US
Kind code	A1
Filing date	Jul 14, 2014
Priority date	Aug 27, 2013
Publication date	Jul 14, 2016
Grant date	—

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.

First claim

1 - 10 . (canceled)

11 . A method for producing ceramic multilayer components, the method comprising:
providing green layers for the ceramic multilayer components; stacking the green layers into a stack and subsequently compressing the stack to form a block; isolating the block into partial blocks, each partial block having a longitudinal direction; thermally treating the partial blocks; mechanically machining surfaces of the partial blocks after the thermally treating; providing the partial blocks with outer electrodes; and isolating the partial blocks into individual ceramic multilayer components, each partial block being isolated transversely to the longitudinal direction.

12 . The method according to claim 11 , wherein the outer electrodes are made of copper.

13 . The method according to claim 11 , wherein stacking the green layers comprises stacking the green layers with inner electrode layers, some the inner electrode layers being electrically coupled to a first of the outer electrodes and others of the inner electrode layers being electrically coupled to a second of the outer electrodes.

14 . The method according to claim 13 , wherein the inner electrode layers are made of copper.

15 . The method according to claim 11 , wherein isolating the block comprises cutting the block only once transversely to a longitudinal direction of the block.

16 . The method according to claim 11 , wherein isolating the block comprises cutting the block multiple times transversely to a longitudinal direction of the block.

17 . The method according to claim 11 , wherein isolating the block comprises cutting the block more often in parallel to a longitudinal direction of the block than transversely to the longitudinal direction of the block.

18 . The method according to claim 11 , wherein mechanically machining the surfaces of the partial blocks comprising mechanically machining opposing lateral surfaces, the opposing lateral surfaces of the partial blocks being provided with the outer electrodes.

19 . The method according to claim 11 , wherein, after providing the partial blocks with outer electrodes, the method further comprises providing the partial blocks with an outer contact.

20 . The method according to claim 19 , wherein the outer contact is provided by a solder or by a soldering process.

21 . The method according to claim 11 , wherein the ceramic multilayer component is a piezoelectric multilayer component.

22 . The method according to claim 11 , wherein the ceramic multilayer component is a piezoelectric actuator.

23 . The method according to claim 11 , wherein the ceramic multilayer component is a multilayer capacitor.

24 . A ceramic multilayer component produced by the method of claim 11 .

25 . A piezoelectric multilayer component, which is producible or produced by a method comprising:
providing green layers for ceramic multilayer components including the piezoelectric multilayer component; stacking the green layers into a stack and subsequently compressing the stack to form a block; isolating the block into partial blocks, each partial block having a longitudinal directions; thermally treating the partial blocks; mechanically machining surfaces of the partial blocks after thermally treating; providing the partial blocks with outer electrodes; and isolating the partial blocks into individual ceramic multilayer components, each partial block being isolated transversely to the longitudinal direction, the piezoelectric multilayer component comprising one of the partial blocks.

Assignees

• Epcos Ag

Inventors

• Ottlinger Marion
• Krumphals Robert
• Glazunov Alexander

Classifications

• Y10T29/42

  Piezoelectric device making · CPC title

• Y10T29/49163

  with sintering of base · CPC title

• H01G4/30 Primary

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

• Y10T29/49126

  Assembling bases · CPC title

• Y10T29/43

  Electric condenser making · CPC title