US Pat. No. 11,071,234

HELICAL FIN DESIGN BY ADDITIVE MANUFACTURING OF METAL FOR ENHANCED HEAT SINK FOR ELECTRONICS COOLING

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1. A heat sink comprising: one or more helical fins;said helical fins have a pin base, terminal end and an elongated section connecting said pin base to said terminal end; and
a portion of said elongated section has a diameter larger than said terminal end and said pin base.