ETS has the capabilities to manufacture using the processes of Extrusion, Skiving, Cold Forging, Snapped Fins, Stamping, and die casting.  Below are some descriptiopn of available processes and their features:

Typical Processes:

Extrusion – typically used for manufacturing of heat sinks – Copper and Aluminum, low and high volume.
Stamping – typically used for producing fins and bases for heatsinks – Copper and Aluminum.
Soldering – typically used to produce heatsink
Die Casting- typically used to produce high volume/low performance heat sinks or enclosures. The enclosures may incorporate cooling fins.
Cold Forging – most typically used for producing pin fin heat sinks – copper and/or aluminum. Low and high volume.

Thermal Design and Development – simulations and testing used to determine thermal performance of discrete components or the air flow and thermal needs of an entire box.

Sheet metal – heatsink covers to protect the fins, heat sink shrouds to direct air flow, air flow ducts low volume and high volume, 1U to 4U boxes - low and high volume.

Assemblies – can solder copper to copper, aluminum to aluminum and or aluminum to copper. Low and high volume. 

Plastic injection molding – for air ducts, heat sink shrouds, bezels and covers. Low and high volume.

CNC Milling - typically used to manufacture low volume and specialty heat sinks or used to create tight tolerance features of product that utilized less expensive processes to produce a near net shape.

Heat sink manufacturing processes:

• Pro – inexpensive tooling and inexpensive parts
• Con – limited on fin thickness and prefers relatively high volume
• Volume – typically need 500kg of material per order - number of parts x Kg per part is greater than or equal to 500kg.
• Material – copper or aluminum

Skiving – Ft = 0.6mm to 0.2mm and a Gw = 3.0m to 1.0mm

• Pro – Low volume with relatively low cost, low tooling cost and thin fins - copper or aluminum 
• Con – parts can be more expensive and cosmetics are not great – fins are typically curved.
• Volume – typically low
• Material – copper or aluminum

Cold Forging – Ft = 0.8mm to 0.5mm and a Gw = 8mm to 1.0mm

• Pros – various types of fins such as pin fins, elliptical fins and or straight with cross cuts.
• Cons – tooling can be expensive.
• Volume – typically low volumes - - less than 10k/month.
• Material – copper or aluminum

Snapped Fins – Ft = 0.5mm to 0.15mm and a Gw = 2mm to 0.8mm

• Pros – thin fins, can have CU base and AL fins, low cost for high performance heat sinks.
• Cons – expensive tooling. Tooling is in the $4k (per fin) range - may need multiple fin tools per heatsink. 
• Volume – High volume 2k to 200k per month
• Material – copper or aluminum

Stamping – Typically for high volume low wattage devices.

• Pros – very inexpensive
• Cons – two dimensional and used for very low wattage. Tooling is in the $4k to $10k range depending on number of cavities needed to support the volume.
• Volume – High volume 25k to 250k/month

• Pros – for high wattage applications with a relatively low weight
• Cons – tooling can be expensive and part cost is relatively high
• Volume – from 100/mnt to 100k/mnt
• Material – copper or aluminum
• Typically for high performance applications