Active heatsink lid

Patent metadata

Field	Value
Publication number	US-10440811-B2
Application number	US-201615199788-A
Country	US
Kind code	B2
Filing date	Jun 30, 2016
Priority date	Jun 30, 2016
Publication date	Oct 8, 2019
Grant date	Oct 8, 2019

Abstract

An active device lid for a device base. The device lid includes a heatsink proximate to a circuit assembly and configured to remove heat generated by the device base, the circuit assembly configured to generate an operating signal voltage for the device base, and a connector configured to connect the circuit assembly to the device base, where the device base is configured to connect to a device mounting substrate on a substrate side of the device base, and where the circuit assembly is configured to be at least partially located on an opposing side of the device base, the opposing side opposing the substrate side.

First claim

What is claimed is:

1. An apparatus with a device lid for a device base comprising:
a heatsink proximate to a circuit assembly and configured to remove heat generated by the device base;
the circuit assembly configured to generate an operating power supply voltage for the device base; and
a connector configured to connect the circuit assembly to the device base, wherein the heatsink, the circuit assembly, and the connector are formed in the device lid, wherein the device lid is separate from the device base, installed over the device base and provides protection of the device base,
wherein the device base is an electronic component including one or more circuit die that includes electronic logic to perform functions of an electronic device,
wherein the device base is configured to connect to a device mounting substrate including a Printed Circuit Board (PCB) on a substrate side of the device base,
wherein the circuit assembly is configured to be at least located on a topside of the device base opposing the substrate side,
an input connector between the PCB and the circuit assembly, wherein the input connector is configured to receive a system power supply voltage from the PCB, wherein the system power supply voltage is used by the circuit assembly to generate the operating power supply voltage, and wherein the system power supply voltage is routed from the PCB to the device base, and, in turn, routed to the circuit assembly via the input connector; and
an output connector between the circuit assembly and the device base, wherein the output connector is configured to provide the operating power supply voltage to the one or more circuit die in the device base,
wherein the input connector and the output connector are operatively coupled to the circuit assembly.

2. The apparatus of claim 1 ,
wherein the heatsink comprises a first portion for collecting the heat from the device base and a second portion for releasing the heat into an ambient space,
wherein the circuit assembly is interposed between the first portion and the second portion of the heatsink.

3. The apparatus of claim 2 ,
wherein the heatsink penetrates an opening in the circuit assembly to connect to the device base.

4. The apparatus of claim 1 ,
wherein the input connector is connectable to a circuit die mounting substrate on the device base for receiving the system power supply voltage from the device mounting substrate via at least one of a plurality of connection balls on the device base.

5. The apparatus of claim 1 ,
wherein the input connector is connectable to the device mounting substrate for receiving the system power supply voltage.

6. The apparatus of claim 1 ,
wherein the circuit assembly comprises a plurality of circuit components coupled to a circuit substrate.

7. An electronic device, comprising:
a device base; and
a device lid comprising:
a heatsink proximate to a circuit assembly and configured to remove heat generated by the device base,
the circuit assembly configured to generate an operating power supply voltage for the device base, and
a connector configured to connect the circuit assembly to the device base, wherein the heatsink, the circuit assembly, and the connector are formed in the device lid, wherein the device lid is separate from the device base, installed over the device base and provides protection of the device base,

wherein the device base is an electronic component including one or more circuit die that includes electronic logic to perform functions of the electronic device,
wherein the device base has a device mounting substrate including a Printed Circuit Board (PCB) on a substrate side of the device base,
wherein the circuit assembly is configured to be at least located on a topside of the device base opposing the substrate side,
an input connector between the PCB and the circuit assembly, wherein the input connector is configured to receive a system power supply voltage from the PCB, wherein the system power supply voltage is used by the circuit assembly to generate the operating power supply voltage, and wherein the system power supply voltage is routed from the PCB to the device base, and, in turn, routed to the circuit assembly via the input connector; and
an output connector between the circuit assembly and the device base, wherein the output connector is configured to provide the operating power supply voltage to the one or more circuit die in the device base,
wherein the input connector and the output connector are operatively coupled to the circuit assembly.

8. The electronic device of claim 7 ,
wherein the heatsink comprises a first portion for collecting the heat from the device base and a second portion for releasing the heat into an ambient space,
wherein the circuit assembly is disposed between the first portion and the second portion of the heatsink.

9. The electronic device of claim 8 ,
wherein the heatsink penetrates an opening in the circuit assembly to connect to the device base.

10. The electronic device of claim 7 ,
wherein the device base comprises a circuit die, a circuit die mounting substrate, and a plurality of connection balls,
wherein the circuit die comprises:
a mounting side that is attached to a first side of the circuit die mounting substrate; and
a non-mounting side that is connectable to the heatsink,

wherein the plurality of connection balls are attached to a second side of the circuit die mounting substrate for connecting the device base to the device mounting substrate, and
wherein the output connector is connectable to the circuit die mounting substrate for providing the operating power supply voltage to the circuit die.

11. The electronic device of claim 10 ,
wherein the input connector is connectable to the circuit die mounting substrate for receiving the system power supply voltage from the device mounting substrate via at least one of the plurality of connection balls.

12. The electronic device of claim 10 ,
wherein the input connector is connectable to the device mounting substrate for receiving the system power supply voltage.

13. A method, comprising:
installing a device base onto a device mounting substrate by connecting a substrate side of the device base onto the device mounting substrate including a Printed Circuit Board (PCB);
obtaining a device lid comprising a heatsink, a circuit assembly, and a connector, each formed in the device lid; and
connecting the circuit assembly and the heatsink to the device base via the connector, wherein the device lid is separate from the device base, installed over the device base and provides protection of the device base,
wherein the device base is an electronic component including one or more circuit die that includes electronic logic to perform functions of an electronic device,
wherein the circuit assembly is configured to be at least located on a topside of the device base opposing the substrate side, and
wherein the circuit assembly is configured to generate an operating power supply voltage for the device base,
wherein connecting the circuit assembly and the heatsink to the device base further comprises:
connecting an input connector of the circuit assembly to receive a system power supply voltage, wherein the system power supply voltage is used by the circuit assembly to generate the operating power supply voltage, and wherein the system power supply voltage is routed from the PCB to the device base, and, in turn, routed to the circuit assembly via the input connector; and
connecting an output connector of the circuit assembly to provide the operating power supply voltage to the device base, wherein t

Assignees

• Ciena Corp

Inventors

• Gareau Sebastien
• Leclair Marc
• Tournier Hugues

Classifications

• H10W90/701

  characterised by the relative positions of pads or connectors relative to package parts · CPC title

• H10W70/68

  Shapes or dispositions thereof · CPC title

• H10W40/226

  characterised by projecting parts, e.g. fins to increase surface area (leadframes for cooling H10W70/461) · CPC title

• H10W90/401 Primary

  characterised by multiple insulating or insulated package substrates, interposers or RDLs · CPC title

• H10W90/00

  Package configurations · CPC title