Purdue researchers have discovered that they can custom-design heat sinks for specific applications, and custom-build them using 3D printing. Serdar Ozguc and Kalind Baraya, Ph.D. students at Purdue's Purdue's Cooling Technologies Research Center (CTRC) under professor Justin Weibel, recently competed at the Heat Sink Challenge, where students designed a heat sink to be printed using additive manufacturing.