Thermal interface for riding heatsink

1. A device, comprising:

a pluggable optical module, comprising:

a substrate; and

a compressible sliding thermal interface material disposed on the substrate,

wherein the compressible sliding thermal interface material is compressed by a threshold clamping force to fill interstices between a first surface of the substrate and a second surface of a riding heatsink,

wherein the compressible sliding thermal interface protrudes from the first surface of the substrate such that insertion of the pluggable optical module into a cage that includes the riding heatsink compresses the compressible sliding thermal interface by the threshold clamping force to achieve a threshold thermal boundary resistance.

2. The device of claim 1 , wherein the compressible sliding thermal interface material is a carbon nano-tube material.

3. The device of claim 1 , wherein the compressible sliding thermal interface material is a metal enclosure enclosing a conductive fluid.

4. The device of claim 1 , wherein the compressible sliding thermal interface material is applied to the substrate.

5. The device of claim 1 , wherein the compressible sliding thermal interface material is applied to the riding heatsink.

6. The device of claim 1 , wherein the threshold thermal boundary resistance is between approximately 0.36 square inches Kelvin per Watt (in 2 K/W) to 1.5 in 2 K/W.

7. The device of claim 1 , wherein the compressible sliding thermal interface material is associated with a thermal conductivity of greater than 1000 Watts per meter Celsius (W/mC).

8. A pluggable optical module, comprising:

a substrate,

a compressible sliding thermal interface disposed on the substrate to contact a riding heatsink,

wherein the compressible sliding thermal interface is compressed to fill interstices between a first surface of the substrate and a second surface of the riding heatsink,

wherein the compressible sliding thermal interface protrudes from the first surface of the substrate such that insertion of the pluggable optical module into a cage compresses the compressible sliding thermal interface to achieve a threshold thermal boundary resistance between the pluggable optical module and the riding heatsink.

9. The pluggable optical module of claim 8 , further comprising:

a digital signal processor (DSP) disposed on the substrate, and

wherein the compressible sliding thermal interface is to transfer heat from the DSP to the riding heatsink.

10. The pluggable optical module of claim 8 , wherein a fill factor of interstices on a surface of the compressible sliding thermal interface is greater than a threshold.

11. The pluggable optical module of claim 8 , wherein the compressible sliding thermal interface comprises:

a flexible interface structure; and

an interface filling material disposed inside the flexible interface structure.

12. The pluggable optical module of claim 11 , wherein the interface filling material is a carbon fiber material or a carbon nano-tube material.

13. An electro-optic transceiver, comprising:

a substrate for inserting into a cage; and

an interface material disposed on the substrate,

wherein the interface material is compressible to enable insertion of the substrate into the cage,

wherein the interface material extends above a surface of the substrate,

wherein the interface material is thermally conductive and is associated with a threshold thermal boundary resistance at a threshold clamping force.

14. The electro-optic transceiver of claim 13 , wherein the interface material is disposed over a portion of the substrate that is to align to a riding heatsink on insertion into the cage.

15. The electro-optic transceiver of claim 14 , wherein the riding heatsink forms a section of the cage.

16. The electro-optic transceiver of claim 13 , wherein the substrate includes a depression of a depth of between approximately 100 micrometers and 2000 micrometers to receive the interface material.

17. The electro-optic transceiver of claim 13 , wherein a height of the interface material above the surface of the substrate is greater than 0 micrometers and less than approximately 2000 micrometers.

18. The electro-optic transceiver of claim 13 , wherein a height of the interface material above the surface of the substrate is less than 100 micrometers.

19. The electro-optic transceiver of claim 13 , wherein a width of the interface material is between approximately 5 millimeters (mm) and 50 mm.

20. The electro-optic transceiver of claim 13 , wherein the electro-optic transceiver is pluggable.