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US 7,068,124 B2Granted
Integrated passive devices fabricated utilizing multi-layer, organic laminates
AssigneeGeorgia Tech Research Corporation
InventorsGeorge E. White, Madhavan Swaminathan, Venkatesh Sundaram, Sidharth Dalmia
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Abstract
The present invention includes an organic device that can be integrated in a multilayer board made of organic material. The passive devices can be integrally fabricated on a circuit board in either surface mount device (SMD) or ball grid array (BGA) form. Alternatively, the passive device can be constructed in a stand alone SMD or BGA/chip scale package (CSP) form to make it mountable on a multilayer board, ceramic carrier or silicon platform in the form of an integrated passive device. The passive device includes side shielding on two sides in the SMD form and four sides in the BGA/CSP form. The side shielding can be external or in-built.
Claims32
An organic bandpass filter, comprising:
- a first core layer having an upper surface and a lower surface;
- a second core layer having an upper surface and a lower surface, wherein the first core layer and the second core layer are positioned opposite one another so that the lower surface of the first core layer is facing the upper surface of the second core layer;
- an organic dielectric layer having an upper conductive layer and a lower conductive layer that are patterned to form at least two resonators, wherein two of the resonators are internally coupled to each other, the organic dielectric layer being arranged between the first core layer and the second core layer;
- a first shield electrode on the upper surface of the first core layer opposite the organic dielectric layer;
- a second shield electrode on the lower surface of the second core layer opposite the organic dielectric layer;
- and
- a side shield electrode in electrical contact with the first and second shield electrodes, wherein the side shield electrode comprises an in-built shielding formed of a portion of the upper conductive layer, wherein the in-built shielding is co-planar with and surrounds at least a portion of the resonators.
4 more elements
An organic bandpass filter, comprising:
- a protective layer having an upper surface and a lower surface;
- a core layer having an upper surface and a lower surface, wherein the core layer and the protective layer are position opposite one another so that the lower surface of the protective layer is facing the upper surface of the core layer;
- an organic dielectric layer having an upper conductive layer and a lower conductive layer that are patterned to form at least two resonators, wherein two of the resonators are internally coupled to each other, the organic dielectric layer being arranged between the core layer and the protective layer;
- a first shield electrode on the lower surface of the core layer opposite the organic dielectric layer;
- a side shield electrode in electrical contact with the first shield electrode, wherein the side shield electrode comprises an in-built shielding formed of a portion of the upper conductive layer, wherein the in-built shielding is co-planar with and surrounds at least a portion of the resonators;
- a plurality of solder balls on the protective layer;
- and
- through holes that electrically connect at least one solder ball to the first shield electrode.
5 more elements
A stand-alone organic passive device, comprising:
- a first core layer having an upper surface and a lower surface;
- a second core layer having an upper surface and a lower surface, wherein the first core layer and the second core layer are position opposite one another so that the lower surface of the first core layer is facing the upper surface of the second core layer;
- an organic dielectric layer having an upper conductive layer and a lower conductive layer that is patterned to form at least one passive device, the organic dielectric layer being arranged between the first core layer and the second core layer;
- a first shield electrode on the upper surface of the first core layer opposite the organic dielectric layer;
- a second shield electrode on the lower surface of the second core layer opposite the organic dielectric layer;
- and
- a side shield electrode in electrical contact with the first and second shield electrodes, wherein the side shield electrode comprises an in-built shielding formed of a portion of the upper conductive layer, wherein the in-built shielding is co-planar with and surrounds at least a portion of the at least one passive device.
4 more elements
A stand-alone organic passive device, comprising:
- a protective layer having an upper surface and a lower surface;
- a core layer having an upper surface and a lower surface, wherein the core layer and the protective layer are position opposite one another so that the lower surface of the protective layer is facing the upper surface of the core layer;
- an organic dielectric layer having an upper conductive layer and a lower conductive layer that is patterned to form at least one passive device, the organic dielectric layer being arranged between the core layer and the protective layer;
- a first shield electrode on the lower surface of the core layer opposite the organic dielectric layer;
- a side shield electrode in electrical contact with the first shield electrode;
- a plurality of solder balls on the protective layer;
- and
- through holes that electrically connect at least one solder ball to the first shield electrode, wherein the side shield electrode comprises an in-built shielding formed of a portion of the upper conductive layer, wherein the in-built shielding is co-planar with and surrounds at least a portion of the at least one passive device.
5 more elements
Dependencies are inferred from the claim text.