Multi-layer capacitor and integrated circuit module

• US 7,684,170 B2
• Filed: 06/25/2004
• Issued: 03/23/2010
• Est. Priority Date: 06/25/2004
• Status: Expired due to Fees

• Current Assignee: Technische Universitat Braunschweig Carolo-Wilhelmina
• Original Assignee: Technische Universitat Braunschweig Carolo-Wilhelmina
• Inventors: Heyen, Johann, Jacob, Arne
• Primary Examiner(s): THOMAS, ERIC W
• Application Number:
  US11/570,860
• Publication Number:
  US 20080019074A1
• Time in Patent Office: 2,097 Days
• Field of Search: 361/303, 361/307, 361/306.3
• US Class Current: 361/306.3
• CPC Class Codes: H01G 4/35 Feed-through capacitors or anti-noise capacitors

Abstract

A multi-layer capacitor includes several electrically insulating layers that are stacked on top of one another. Parallel electrode plates are arranged between the insulating layers alternately one on top of the other, with each of the plates being separated by an intervening insulating layer. At least one first connecting line which extends perpendicularly through the layers is connected to one set of electrode plates and is insulated in relation to the other set of second electrode plates. Similarly, second connecting lines extend perpendicularly through the layers and are connected to the other set of plates and are insulated in relation to the one set of plates. The first connecting line extends centrally through the stacked electrode plates and is designed to carry a high-frequency signal.

Claims

1. A multi-layer capacitor comprising:

a number of electrically insulating layers stacked on top of one another;

first and second electrode plates arranged in parallel with one another between the insulating layers, wherein the first and second electrode plates are arranged spaced apart from one another above one another alternating with an intermediate insulating layer;

at least one first connecting line extending perpendicularly through the insulating layers, which is connected to the first electrode plates and is insulated from the second electrode plates;

second connecting lines extending perpendicularly through the insulating layers, which are connected to the second electrode plates and are insulated from the first electrode plates,

wherein one of said at least one first connecting line provided for application of a radio-frequency signal extends centrally through the stacked first and second electrode plates, and

wherein further first connecting lines of said at least one first connecting line are arranged distributed symmetrically around the one first connecting line on a circumference.

2. The multi-layer capacitor as claimed in claim 1, wherein the second connecting lines are arranged distributed over the outer circumference of the first electrode plates and the second electrode plates protrude over the outer circumference of the first electrode plates.

3. The multi-layer capacitor as claimed in claim 1, wherein at least some of said second connecting lines are arranged distributed on the circumference of the further first connecting lines.

4. The multi-layer capacitor as claimed in claim 1, wherein the further first connecting lines (4) are offset with respect to the second connecting lines.

5. The multi-layer capacitor as claimed in claim 1, wherein the multi-layer capacitor is terminated with first electrode plates at the top and the bottom.

6. The multi-layer capacitor as claimed in claim 1, wherein the first and second electrode plates are circular.

7. The multi-layer capacitor as claimed in claim 1, wherein one or more of the further first and the second connecting lines extend through the stacked first and second electrode plates and are electrically conductively connected to associated electrode plates for forming parallel and/or serially connected blocking capacitances.

8. The multi-layer capacitor as claimed in claim 1, wherein the further first and the second connecting lines are electrically interconnected with the first and second electrode plates in such a manner that blocking capacitances connected in series with the at least one first connecting line are formed.

9. An integrated circuit module comprising:

a carrier substrate; and

at least one integrated circuit on the carrier substrate,

wherein the carrier substrate is multi-layered and includes at least one multi-layer capacitor comprising a number of electrically insulating layers stacked on top of one another, first and second electrode plates arranged in parallel with one another between the insulating layers, wherein the first and second electrode plates are arranged spaced apart from one another above one another alternating with an intermediate insulating layer, and with at least one first connecting line extending perpendicularly through the layers, which is connected to the first electrode plates and is insulated from the second electrode plates, and with second connecting lines extending perpendicularly through the layers, which are connected to the second electrode plates and are insulated from the first electrode plates, wherein the at least one first connecting line provided for application of a radio-frequency signal extends centrally through the stacked first and second electrode plates, is integrated in the carrier substrate and the first and second connecting lines are wired directly or by means of wire or flip-chip connections to at least one of the integrated circuits.