Marvell Asia Pte., Ltd.

Inphi Corporation

Steve Aboagye

Radhakrishnan L Nagarajan

Roberto Coccioli

Liang Ding

Mark Patterson

An optical communication system includes a co-packaged optical module and a heatsink mounted to the co-packaged optical module. The co-packaged optical module includes a processor disposed on a substrate and a plurality of light engines disposed at different locations around the processor on the substrate. The processor and the light engines generating different amounts of heat during operation. The heatsink includes a plurality of heat pipes non-uniformly distributed throughout the heatsink to remove the different amounts of heat generated at a location of the processor and respective locations of the different ones of the light engines.

Heatsink for co-packaged optical switch rack package

A co-packaged optical module includes a substrate, a processor arranged on the substrate and a plurality of light engines mounted around the processor on the substrate using mounting assemblies configured to attach the respective light engines to the substrate. The light engines and the mounting assemblies are disposed along a perimeter of the substrate, including at corners of the substrate. Each of the mounting assemblies includes a socket, a metal clamp clamping a corresponding one of the light engines into the socket, and a plurality of pins which when mated with corresponding holes in the substrate cause peripheries of the mounting assemblies, including the light engines, the sockets and the metal clamps, to be flush with the perimeter of the substrate.

Method for co-packaging light engine chiplets on switch substrate

A co-packaged optical-electrical module includes a module substrate with a minimum lateral dimension no greater than 100 mm. The co-packaged optical-electrical module further includes a main die with a processor chip disposed at a central region of the module substrate, the processor chip being configured to operate with a digital-signal processing (DSP) interface for extra-short-reach data interconnect. Additionally, the co-packaged optical-electrical module includes a plurality of chiplet dies disposed densely along a peripheral region of the module substrate. Each chiplet die is configured to be self-packaged light engine on a sub-module substrate with a minimum lateral dimension to allow a maximum number of chiplet dies on the module substrate with a distance of any chiplet die from the main die smaller than 50 mm for extra-short-reach interconnect operation.

Co-packaged light engine chiplets on switch substrate

A method for co-packaging multiple light engines in a switch module is provided. The method includes providing a module substrate with a minimum lateral dimension no greater than 110 mm. The module substrate is configured with a first mounting site at a center region and a plurality of second mounting sites distributed densely along the peripheral sides. The method includes disposing a main die with a switch processor chip at the first mounting site. The switch processor chip is configured to operate with a digital-signal processing (DSP) interface for extra-short-reach data interconnect. The method further includes mounting a plurality of chiplet dies respectively into the plurality of second mounting sites. Each chiplet die is configured to be a packaged light engine with a minimum lateral dimension to allow a maximum number of chiplet dies with &#x3c;50 mm from the main die for extra-short-reach data interconnect.

An integrated heatsink for a co-packaged optical-electrical module includes a base plate attached on top of a co-packaged optical-electrical module. The integrated heatsink further includes a plurality of fin structures extended upward from the base plate except a central cavity region with missing sections of fins, each fin extended along an axial direction from a front edge to a back edge of the base plate except some trenches shallow in depth across some fin structures and some other trenches deep in depth down to the base plate either along or across some fin structures. Additionally, the integrated heatsink includes multiple heat pipes including shaped portions embedded in the trenches in the plurality of fin structures. At least one bottom horizontal portion per heat pipe is brazed to the base plate in a corresponding region that is superimposed on hot spots of the co-packaged optical-electrical module under the base plate.

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Santa Clara, CA, United States of America

Steve Aboagye