# US 12,010,815 B2 · Chip to server packaging design for immersion systems

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- Number: US 12,010,815 B2
- Document ID: US12010815B2
- Status: Granted
- Kind: B2
- Application number: 17/698,854
- Filed: 2022-03-18
- Published: 2023-09-21
- Granted: 2024-06-11
- Earliest claimed: 2022-03-18
- Assignees: Baidu USA LLC
- Applicants: Baidu USA LLC
- Inventors: Tianyi Gao
- Web page: https://patentgrep.com/patent/US12010815B2

## CPC

- H05K 7/20272: {Accessories for moving fluid, for expanding fluid, for connecting fluid conduits, for distributing fluid, for removing gas or for preventing leakage, e.g. pumps, tanks or manifolds}
- H05K 7/20236: {by immersion}
- H05K 7/20772: {within server blades for removing heat from heat source}
- H05K 7/20809: {within server blades for removing heat from heat source}
- H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS

## Abstract

A cooling module includes a first cooling plate having a first internal channel and a second cooling plate having a second internal channel. The cooling module includes an interconnect frame coupled in between the first and second cooling plates, the interconnect frame includes a third internal channel that connects the first internal channel to the second internal channel. The cooling module includes a first injection plate attached to a bottom portion of the first cooling plate and a second injection plate attached to a bottom portion of the second cooling plate, the first and second injection plates manage a distribution of coolant fluid to dedicated areas of electronic chips adjacent to the first and second injection plates. The cooling module includes a first pump frame coupled to an inlet port at the first cooling plate, a first pump disposed at the first pump frame to directly intake a coolant fluid.

## Claims

### Claim 1

A cooling module, comprising:
a first cooling plate having a first internal channel;
a second cooling plate having a second internal channel;
an interconnect frame coupled in between the first and second cooling plates, the interconnect frame includes a third internal channel that connects the first internal channel to the second internal channel; and
a first injection plate attached to a bottom portion of the first cooling plate and a second injection plate attached to a bottom portion of the second cooling plate, the first and second injection plates manage a distribution of coolant fluid to dedicated areas of electronic chips adjacent to the corresponding first and second injection plates.

### Claim 2 (depends on 1)

The cooling module of claim 1, wherein the coolant fluid at the first internal channel enters the second internal channel via the third internal channel and the coolant fluid is accelerated by the first and second injection plates to the dedicated areas of the electronic chips.

### Claim 3 (depends on 1)

The cooling module of claim 1, wherein the second cooling plate is arranged in a series manner or a parallel manner with the first cooling plate and coolant fluid enters the first internal channel subsequent to entering the second internal channel.

### Claim 4 (depends on 1)

The cooling module of claim 1, further comprising:
a first pump frame coupled to an inlet port at the first cooling plate; and
a first pump disposed at the first pump frame to directly intake a coolant fluid from the first pump to the first internal channel of the first cooling plate.

### Claim 5 (depends on 4)

The cooling module of claim 4, wherein the first pump generates a localized acceleration of cooling stream within an immersion environment.

### Claim 6 (depends on 4)

The cooling module of claim 4, wherein the first pump is situated to a side of the first cooling plate or the first pump is situated near a top portion of the first cooling plate.

### Claim 7 (depends on 4)

The cooling module of claim 4, wherein the first pump frame is open-ended to an immersion fluid to directly receive the immersion fluid as the coolant fluid or the first pump frame is coupled to a distribution line to receive the coolant fluid that is different from the immersion fluid.

### Claim 8 (depends on 7)

The cooling module of claim 7, wherein when the first pump frame is coupled to the distribution line to receive the coolant fluid that is different from the immersion fluid, the distribution line comprises a distribution pump to distribute coolant fluid to the first pump frame.

### Claim 9 (depends on 1)

The cooling module of claim 1, wherein the first or second injection plates comprises a plurality of injection ports or plates forming an injection pattern that injects coolant fluid at locations with flow rates based on locations and sizes of the plurality of injection ports.

### Claim 10 (depends on 1)

The cooling module of claim 1, wherein the first or second injection plates are configured nearby a first subset of electronics with workload intensity above a threshold but not near a second subset of electronics with workload intensity below a threshold.

### Claim 11 (depends on 1)

The cooling module of claim 1, further comprising:
a second pump frame coupled to an inlet port at the second cooling plate; and
a second pump disposed at the second pump frame to pump a same coolant fluid from the second pump to the second internal channel of the second cooling plate, wherein the first and/or second pumps operate in redundant mode.

### Claim 12 (depends on 1)

The cooling module of claim 1, further comprising a mounting structure secured to the first and second cooling plates, wherein the mounting structure is mounted to a server chassis to position the first and second injection plates near the dedicated areas of the electronic chips.

### Claim 13

A server, comprising:
a chassis frame housing a server board having a plurality of electronic chips that are submersible in an immersion environment;
a perforation region at an end of a server chassis for an immersion fluid to enter or exit the immersion environment; and
a cooling module contained within the chassis frame, the cooling module comprises:
a first cooling plate having a first internal channel;
a second cooling plate having a second internal channel;
an interconnect frame coupled in between the first and second cooling plates, the interconnect frame includes a third internal channel that connects to the first and second internal channels; and
a first injection plate attached to a bottom portion of the first cooling plate and a second injection plate attached to a bottom portion of the second cooling plate, the first and second injection plates manage a distribution of coolant fluid to dedicated areas of electronic chips adjacent to the corresponding first and second injection plates.

### Claim 14 (depends on 13)

The server of claim 13, wherein the coolant fluid at the first internal channel enters the second internal channel via the third internal channel and the coolant fluid is accelerated by the first and second injection plates to the dedicated areas of the electronic chips.

### Claim 15 (depends on 13)

The server of claim 13, wherein the second cooling plate is arranged in a series manner or a parallel manner with the first cooling plate and coolant fluid enters the first internal channel subsequent to entering the second internal channel.

### Claim 16 (depends on 13)

The server of claim 13, wherein the cooling module further comprises:
a first pump frame coupled to an inlet port at the first cooling plate; and
a first pump disposed at the first pump frame to directly intake a coolant fluid from the first pump to the first internal channel of the first cooling plate.

### Claim 17 (depends on 16)

The server of claim 16, wherein the first pump generates a localized acceleration of cooling stream within an immersion environment.

### Claim 18 (depends on 16)

The server of claim 16, wherein the first pump is situated to a side of the first cooling plate or the first pump is situated near a top portion of the first cooling plate.

### Claim 19 (depends on 16)

The server of claim 16, wherein the first pump frame is open-ended to an immersion fluid to directly receive the immersion fluid as the coolant fluid or the first pump frame is coupled to a distribution line to receive the coolant fluid that is different from the immersion fluid.

### Claim 20

A cooling system, comprising:
an immersion unit; and
a server submersible in the immersion unit, the server, comprising:
a chassis frame housing a server board having a plurality of electronic chips that are submersible in an immersion environment;
a perforation region at an end of the server for an immersion fluid to enter or exit the immersion environment; and
a cooling module contained within the chassis frame, the cooling module comprises:
a first cooling plate having a first internal channel;
a second cooling plate having a second internal channel;
an interconnect frame coupled in between the first and second cooling plates, the interconnect frame includes a third internal channel that connects to the first and second internal channels; and
a first injection plate attached to a bottom portion of the first cooling plate and a second injection plate attached to a bottom portion of the second cooling plate, the first and second injection plates manage a distribution of coolant fluid to dedicated areas of electronic chips adjacent to the corresponding first and second injection plates.
