Monolithically integratable LC circuit arrangement
A monolithically integratable circuit arrangement is provided, which has at least one inductor, formed as a conductor loop, and at least one capacitor, connected to the conductor loop. According to the invention, the circuit arrangement comprises (a) at least one first conductor loop placed in at least one first metallization level and having a first DC terminal for applying a first DC potential, (b) at least one second conductor loop placed in at least one second metallization level and having a second DC terminal for applying a second DC potential, (c) at least one metal-isolator-metal capacitor with a capacitor plate, which is placed in a third metallization level between the first and second metallization level, and (d) at least one metallic connecting means placed between the capacitor plate and the first conductor loop, said means which connects the capacitor plate in an electrically conducting manner to the first conductor loop. The invention relates furthermore to an integrated circuit having a circuit arrangement of this type.
1. A monolithically integratable LC circuit arrangement comprising:
at least one first conductor loop provided in at least one first metallization level and having a first DC terminal for applying a first DC potential;
at least one second conductor loop provided in at least one second metallization level and having a second DC terminal for applying a second DC potential;
at least one metal-isolator-metal capacitor with a capacitor plate that is provided in a third metallization level between the first and second metallization level; and
at least one metallic connector provided between the capacitor plate and the first conductor loop, the metallic connector connecting the capacitor plate in an electrically conductive manner to the first conductor loop, the second conductor loop being electrically insulated from the capacitor plate.
2. The circuit arrangement according to claim 1 , wherein the metal the at least one metal-isolator-metal capacitor has another capacitor plate formed by the second conductor loop.
3. The circuit arrangement according to claim 1 , wherein the capacitor plate is provided between a section of the first conductor loop and a neighboring section of the second conductor loop.
4. The circuit arrangement according to claim 1 , wherein the at least one metal-isolator-metal capacitor has an insulator layer whose thickness is substantially smaller than a width of the insulator layer.
5. The circuit arrangement according to claim 4 , wherein the width of the insulator layer is at least a hundred times the thickness of the insulator layer.
6. The circuit arrangement according to claim 1 , wherein the at least one metallic conductor is formed as a plated through-hole.
7. The circuit arrangement according to claim 1 , wherein the at least one metallic conductor is arranged substantially perpendicular to one of the metallization levels.
8. The circuit arrangement according to claim 1 , wherein the first and/or the second DC terminal is placed in a symmetry plane positioned substantially perpendicular on one of the metallization levels.
9. The circuit arrangement according to claim 1 , wherein the at least one first conductor loop has at least one first AC terminal for applying or tapping off a first high-frequency signal and/or the at least one second conductor loop has at least one second AC terminal for applying or tapping off a second high-frequency signal.
10. The circuit arrangement according to claim 1 , wherein the first and/or the second DC terminal is provided mirror-symmetrically relative to a symmetry plane S positioned perpendicular on one of the metallization levels.
11. The circuit arrangement according to claim 1 , wherein the at least one first and the at least one second conductor loops are placed overlapping at least in one subsection.
12. The circuit arrangement according to claim 1 , wherein the at least one first and the at least one second conductor loops are formed congruent at least in one subsection.
13. The circuit arrangement according to claim 12 , wherein the at least one first and the at least one second conductor loops include one or more AC terminals and are formed congruent with the exception of areas around the AC terminals.
14. The circuit arrangement according to claim 1 , wherein the at least one first conductor loop and/or the at least one second conductor loop have one or more turns.
15. The circuit arrangement according to claim 14 , wherein the turns of the at least one first and/or the at least one second conductor loop are designed substantially round, oval, piecewise straight, polygonal, rectangular, or square.
16. The circuit arrangement according to claim 1 , further comprising an amplifier unit that has a first and a second terminal, the first terminal being connected to the at least one first conductor loop and the second terminal to the at least one second conductor loop, the first terminal being supplied with the first DC potential via the first DC terminal and the at least one first conductor loop and the second terminal with the second DC potential via the second DC terminal and the at least one second conductor loop.
17. The circuit arrangement according to claim 16 , wherein the amplifier unit has at least one transistor.
18. The circuit arrangement according to claim 17 , wherein the first terminal of the amplifier unit is formed as a collector or drain terminal of the transistor and the second terminal of the amplifier unit is formed as a base or gate terminal of the transistor.
19. An Integrated circuit comprising the circuit arrangement according to claim 1 .
20. The Integrated circuit according to claim 19 , wherein the integrated circuit is formed as a monolithically integrated circuit, as a hybrid circuit, or as a multilayer ceramic circuit.