# US 10,307,603 B2 · Hermetic package with inductors and capacitors integrated into ceramic housing

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- Number: US 10,307,603 B2
- Document ID: US10307603B2
- Status: Granted
- Kind: B2
- Application number: 15/725,866
- Filed: 2017-10-05
- Published: 2018-05-17
- Granted: 2019-06-04
- Earliest claimed: 2016-11-14
- Assignees: Verily Life Sciences LLC
- Applicants: Verily Life Sciences LLC
- Inventors: Kedar Shah; Peng Cong
- Web page: https://patentgrep.com/patent/US10307603B2

## CPC

- A61N 1/3754: {Feedthroughs}
- A61N 1/37205: {Microstimulators, e.g. implantable through a cannula}
- A61N 1/37223: {Circuits for electromagnetic coupling}
- A61N 1/37229: {Shape or location of the implanted or external antenna}
- A61N 1/3756: {Casings with electrodes thereon, e.g. leadless stimulators}
- A61N 1/3787: {from an external energy source}
- A61N 1/0534: {Electrodes for deep brain stimulation}
- A61N 1/36038: {Cochlear stimulation}
- A61N 1/37512: {Pacemakers}
- A61N 1/37514: {Brain implants}
- A61N 1/3758: {Packaging of the components within the casing}
- A61N: ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY (measurement of bioelectric currents A61B; surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body A61B18/00; anaesthetic apparatus in general A61M; incandescent lamps H01K; infrared radiators for heating H05B)

## Abstract

An implantable device includes a cylindrical housing, a metallic feedthrough, a metallic collar, and a battery. The cylindrical housing has a sidewall and an internal cavity, and is formed from a ceramic. One or more electrical components are integrated into the sidewall. The metallic feedthrough is joined to a first end of the cylindrical housing. The metallic collar is joined to a second end of the cylindrical housing. The battery is joined to the metallic collar.

## Claims

### Claim 1

An implantable device, comprising:
a cylindrical housing having a sidewall and an internal cavity, wherein the sidewall is formed from a ceramic, wherein an antenna is integrated into and embedded within the sidewall, and wherein the antenna forms a coil within the sidewall around the internal cavity;
a metallic feedthrough joined to a first end of the cylindrical housing;
a metallic collar joined to a second end of the cylindrical housing, the second end opposite the first end; and
a battery joined to the metallic collar.

### Claim 2 (depends on 1)

The implantable device of claim 1, further comprising:
control circuitry disposed within an inner cavity of the cylindrical housing and electrically coupled to the antenna.

### Claim 3 (depends on 1)

The implantable device of claim 1, wherein the antenna is imbedded into the ceramic.

### Claim 4 (depends on 1)

The implantable device of claim 1, wherein the cylindrical housing comprises a plurality of ceramic sheets stacked on top of each other with partial conductive loops disposed between stacked layers of the ceramic sheets, wherein the partial conductive loops collectively form the antenna.

### Claim 5 (depends on 4)

The implantable device of claim 4, wherein a first end of a first partial conductive loop disposed at a first stacked layer is aligned with a second end of a second partial conductive loop disposed at a second stacked layer, different from but adjacent to the first stacked layer.

### Claim 6 (depends on 1)

The implantable device of claim 1, wherein the metallic feedthrough provides connections between circuitry disposed within an inner cavity of the cylindrical housing and one or more external electrodes.

### Claim 7 (depends on 1)

The implantable device of claim 1, wherein the battery is electrically coupled to circuitry disposed within an inner cavity of the cylindrical housing.

### Claim 8 (depends on 1)

The implantable device of claim 1, wherein the metallic feedthrough and the metallic collar are joined to the cylindrical housing by brazing.

### Claim 9 (depends on 1)

The implantable device of claim 1, wherein the battery is joined to the metallic collar by laser welding.

### Claim 10 (depends on 1)

The implantable device of claim 1, wherein the ceramic is alumina or zirconia.

### Claim 11 (depends on 1)

The implantable device of claim 1, wherein the antenna is formed from platinum or gold.

### Claim 12 (depends on 1)

The implantable device of claim 1, further comprising a parallel plate capacitor integrated into the sidewall and electrically coupled to the antenna.

### Claim 13 (depends on 1)

The implantable device of claim 1, further comprising a ferromagnetic material disposed on a surface of the internal cavity, wherein the ferromagnetic material provides electromagnetic isolation between the antenna and electronics disposed within the internal cavity.

### Claim 14 (depends on 5)

The implantable device of claim 5, further comprising a conductive via disposed through a first one of the ceramic sheets, the conductive via electrically coupling the first partial conductive loop to the second partial conductive loop.

### Claim 15 (depends on 4)

The implantable device of claim 4, wherein the stacked layers of the ceramic sheets comprise a sintered stack of ceramic sheets with the antenna embedded therein.

### Claim 16 (depends on 1)

The implantable device of claim 1, wherein the metallic collar is disposed between the battery and the cylindrical housing and attaches the battery to the cylindrical housing.

### Claim 17

An implantable device, comprising:
a cylindrical housing having a sidewall and an internal cavity, and formed from a ceramic, wherein one or more passive electrical components are integrated into and embedded within the sidewall;
a metallic feedthrough joined to a first end of the cylindrical housing;
a metallic collar joined to a second end of the cylindrical housing, the second end opposite the first end; and
a battery joined to the metallic collar.

### Claim 18 (depends on 17)

The implantable device of claim 17, wherein the one or more passive electrical components at least includes a coil for inductive power transfer.

### Claim 19 (depends on 17)

The implantable device of claim 17, wherein the one or more passive electrical components is an antenna coupled for power telemetry.

### Claim 20 (depends on 17)

The implantable device of claim 17, wherein the one or more passive electrical components at least includes a parallel plate capacitor.

### Claim 21 (depends on 17)

The implantable device of claim 17, wherein the one or more passive electrical components at least includes an inductor.

### Claim 22 (depends on 17)

The implantable device of claim 17, further comprising:
circuitry disposed within the internal cavity, wherein the one or more passive electrical components are electrically coupled to the circuitry.
