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Ten small square copper shims with smooth metallic finish

EN-Labs

EN-Labs 10pcs DIY Copper Shim Heatsink 15x15x1.5mm

SKU CH-4NA4-89CFG

Pack of ten 15 by 15 by 1.5 millimetre copper shims rated at 401 W/mK for laptop CPU, GPU and memory cooling

  • CompatibilityCPU
  • MaterialCopper
  • FeaturesThis Copper Shims thermal conductivity up to 401w / mk, and
  • Dimensions15mm x 15mm x 1.5mm
  • High thermal conductivity up to 401 W/m·K improves heat transfer
  • Ten shims per pack cover multiple chips or allow replacement
  • 15 mm square fits common laptop BGA packages
  • 5 mm thickness bridges gaps without excessive pressure
  • Pure copper resists aging that degrades thermal pads over time

DIY Copper Shims 10-Pack

This set contains ten copper shims designed for DIY cooling projects. Each piece measures 15mm by 15mm by 1.5mm and is made from copper rated at 401 W/mK thermal conductivity. They are intended for use on laptop CPU, GPU, VGA chip and RAM IC packages.

Suits laptop repair and custom cooling

These shims suit technicians replacing aged thermal pads on BGA processors or builders adding thermal mass to tight spaces. They are not suited for users needing larger contact areas, different thicknesses or pre-applied adhesive layers.

Check component heights and clearances

Verify that the 1.5mm thickness matches the gap between your die and heatsink before ordering. Ensure the 15mm square footprint covers the target chip without overlapping neighbouring components. Confirm your assembly can accommodate the added copper mass.

Highlights

  • High thermal conductivity up to 401 W/m·K improves heat transfer
  • Ten shims per pack cover multiple chips or allow replacement
  • 15 mm square fits common laptop BGA packages
  • 5 mm thickness bridges gaps without excessive pressure
  • Pure copper resists aging that degrades thermal pads over time

Specifications

CompatibilityCPU
MaterialCopper
FeaturesThis Copper Shims thermal conductivity up to 401w / mk, and ordinary copper thermal conductivity is only 20-30w / mk
CPU and GPU graphics card in the inside part of the laptop using a thermal plastic thermal conductivity, thermal plastic
at high temperature for a long time easy to aging, and ultimately lost, leading to overheating of the CPU or GPU, the
Laptop will not start after overheating. And this copper heat sink solve thermal problems caused by frequent crashes laptop, etc
Package included:
10 pcs Thermal Conductive Copper Shims 15mm x 15mm x 1.5mm
Dimensions15mm x 15mm x 1.5mm

Questions about this item

What surface area must the CPU die or chip have to match the 15mm x 15mm shim?

Each shim measures 15mm by 15mm, so the component top should be at least that large for full contact.

Can the 1.5mm thickness replace a thermal pad of the same height on an older laptop GPU?

Yes, the 1.5mm copper shim can sit where a 1.5mm pad was used, conducting heat directly to the heatsink.

How can I verify the 401 W/m·K conductivity is effective after installation?

Monitor CPU or GPU temperatures under load; a noticeable drop compared with the previous thermal interface shows the shim is working.

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