Banner for ATS Products for cooling Electronic Devices

Zipper Fin Heat Sinks

High Fin Density Heat Sinks, Pre-Tooled, No NRE

ATS has a selection of pre-tooled zipper fin profiles that provide reliable cooling at a significant cost savings for customers. Zipper fin heat sinks are a cost-effective and lightweight alternative to other high fin density solutions, especially for high-volume production. ATS pre-tooled zipper fin profiles have no NRE (non-recurring engineering charge) to offer further savings for customers.

Zipper fins are stamped from thin sheet metal, typically aluminum or copper, and are formed into a shape. The sheets interlock with each other and the resulting fin assembly is then wave soldered/bonded to a metal base to form a heat sink. For example, a copper base can be used with aluminum fins to ensure thermal performance and effective heat spreading, but at a much lighter weight than a standard copper heat sink. ATS pre-tooled zipper fin heat sinks are the right choice because they were designed with high aspect ratio fin profiles, enabling taller, thinner and more densely packed fins for increased surface area and improved cooling performance.

In addition, zipper fin heat sinks can be customized with heat pipes and integral ducts to enhance thermal performance, particularly with active heat sinks for air movers, fans, and blowers. Heat pipes are a common addition to zipper fin heat sinks because the base acts as the evaporator section and the fins as the condenser section. This provides a lightweight, high-performance

Zipper Fin Heat Sinks Features & Benefits

  • Pre-Tooled to reduce time to production
  • No NRE (non-recurring engineering charge) for cost savings
  • Stamped from thin sheet metal
  • Made from copper or aluminum
  • High aspect fin ratio designs to enable densely packed fin count
  • No minimum order quantity (MOQ)
  • Can be customized with copper plates, heat pipes, or vapor chambers to enhance heat transfer
  • RoHS Compliant
  • Contact an ATS Engineer about Zipper Fin HS Design

Zipper Fins Assembled into a Heat Sink

>Rapid Prototyping and High Volume Manufacturing Through ATS Manufacturing Division *Image above is for illustration purpose only..
FT=Fin Thickness (mm);L=Length (mm);W=Width (mm); H=Height (mm); P=Pitch (mm); D=Diameter (mm);
Zipper Fins for Heat Sinks
  • Sort Ascending
  • Sort Descending
  • Clear Sorting
  • Columns

Zipper Fin for Heat Pipes

>Rapid Prototyping and High Volume Manufacturing Through ATS Manufacturing Division *Image above is for illustration purpose only..
FT=Fin Thickness (mm);L=Length (mm);W=Width (mm); H=Height (mm); P=Pitch (mm); D=Diameter (mm);
Zipper Fins for Heat Pipes
  • Sort Ascending
  • Sort Descending
  • Clear Sorting
  • Columns

Zipper Fin Pack (example)

>Rapid Prototyping and High Volume Manufacturing Through ATS Manufacturing Division *Image above is for illustration purpose only..
FT=Fin Thickness (mm);L=Length (mm);W=Width (mm); H=Height (mm); P=Pitch (mm); D=Diameter (mm);
Zipper Fin Packs for Creating a Heat Sink with a Base
ATS-STFIN-01-R0 0.2 120 22 1.80 N/A AL Yes 45 Drawing
ATS-STFIN-02-R0 0.2 120 17 1.8 N/A AL Yes 55 Drawing
ATS-STFIN-03-R0 0.2 90 22.5 1.25 N/A AL Yes 71 Drawing
ATS-STFIN-04-R0 0.2 90 22.5 1.25 N/A AL Yes 52 Drawing
ATS-STFIN-05-R0 0.2 91.5 21 1.26 N/A AL Yes 72 Drawing
ATS-STFIN-06-R0 0.5 60 59 1.9 N/A AL Yes 39 Drawing
ATS-STFIN-07-R0 0.4 87 20 1.8 N/A AL 2513 Yes 49 Drawing
ATS-STFIN-08-R0 0.4 52 59 1.85 N/A AL Yes 48 Drawing
ATS-STFIN-09-R0 0.3 18 10 1.5 6 AL Yes 30 Drawing
ATS-STFIN-10-R0 0.3 20.5 30 1.5 6 AL Yes 38 Drawing
ATS-STFIN-11-R0 0.3 13.5 25 1.5 6 AL Yes 37 Drawing
ATS-STFIN-12-R0 0.8 80 360 N/A AL Yes 80 Drawing
ATS-STFIN-13-R0 0.5 25 120.5 2.04 6 AL Yes 49 Drawing
ATS-STFIN-14-R0 0.5 25 100 2.5 6 AL Yes 45 Drawing
ATS-STFIN-15-R0 0.6 67 68.5 2.54 6 AL Yes 33 Drawing
ATS-STFIN-16-R0 0.4 50 140 2.17 6 AL Yes 64 Drawing
ATS-STFIN-17-R0 0.4 55 140 2.16 6 AL Yes 49 Drawing
ATS-STFIN-18-R0 0.4 50 140 2.2 6 AL Yes 49 Drawing
ATS-STFIN-19-R0 0.4 52 150 2.2 6 AL Yes 25 Drawing
ATS-STFIN-20-R0 0.4 41.9 132.6 2.2 N/A AL Yes 20 Drawing
ATS100090065-1426-C1-R0 0.51 65 100.1 2.56 6 AL Yes 35 Drawing
  • Sort Ascending
  • Sort Descending
  • Clear Sorting
  • Columns