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Custom Heat Sink with Heat Pipe for the Semiconductor Testing Industry

Custom Heat Sink with Heat Pipe
Custom Heat Sink with Heat Pipe

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A customer in the semiconductor industry was dissatisfied with their current supplier’s inability to maintain the tight tolerances they required, and contracted us at Hirsch Machine, Inc. to take on the responsibility. We were up to the challenge, repairing the customer’s existing stock of heat sinks and becoming their manufacturer for subsequent orders of custom heat sinks.  The parts were first milled out on our     3-axis vertical machining center, then they were straightened and lapped flat before being soldered into an assembly.  The tightest tolerances of +/-.001” were met during construction. The 2 ½” to 3 ½” rectangular heat sink is composed of copper and special heat pipe, which was treated with an electroless nickel plating finishing process. These parts were 100% inspected to insure dimensional accuracy.

Turnaround time for custom manufactured heat sinks are 4 weeks, typically machining 1000 per order.  We have maintained a 5 year ongoing relationship with this customer, having fabricated over 10,000 custom units so far. For more information about this custom heat sink repair and manufacturing project or the other custom manufacturing Secondary Services available please see the table below or contact us directly.

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Custom Heat Sink with Heat Pipe Project Highlights

Product Name
Heat Sink
Product Description
Repair and Manufacturing Heat Sink
Secondary Services Applied/Processes
  • Milled
  • Lapping
  • Soldering
  • Straightening
  • Plating
Equipment Used to Manufacture Part
3-Axis Vertical Machine Center
Overall Part Dimensions
2 ½”Rectangular to 3 ½ Rectangular
Tightest Tolerances
Material Used
Copper and Special Heat Pipe
Material Finish
Electroless Nickel Plating
In process testing/inspection performed
CMM, Surface Plate and Visual Inspection
Flatness Inspection
Industry for Use
Delivery/Turnaround Time
4 Weeks
Delivery Location
Standards Met
Customer Specifications, 2D CAD Drawing

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