TY - CPAPER KW - Cooling KW - Heat transfer KW - Plasma temperature KW - Temperature distribution KW - Convection KW - Microchannel KW - Heat sinks KW - Chip maximum junction temperature KW - Circuits KW - Cross-linked microchannel heat sink KW - Electronic equipment KW - Electronics cooling KW - Fluid mixing KW - Heat flux KW - Hotspots KW - Integrated circuit reliability KW - Lateral fluid transport KW - Mass flow distribution KW - Materials testing KW - Microchannel heat sinks KW - Performance degradation KW - Reliability degradation KW - Spatially nonuniform heat flux KW - Temperature uniformity KW - Transducers KW - Two-phase convective heat transfer AU - Eun Seok Cho AU - Jae-Mo Koo AU - Linan Jiang AU - Ravi S Prasher AU - Min Soo Kim AU - J G Santiago AU - T W Kenny AU - Kenneth E Goodson AB -

Hotspots, imposed by spatially non-uniform heat flux in a high performance circuit, increase the chip maximum junction temperature, which degrades the reliability and performance of electronic equipment. Microchannel heat sinks with two-phase convective heat transfer are effective for removing high heat flux exceeding 100 W/cm/sup 2/. Cross-linking of microchannels can be promising for achieving better temperature uniformity and more effective cooling due to the lateral fluid transport and mixing. This study experimentally investigates the impact of mass flow distribution on the chip temperature field in a multi-channel heat sink. Furthermore, the performance of two microchannel heat sinks is compared with different configurations: a regular microchannel heat sink and a cross-linked microchannel heat sink.

BT - Ninteenth Annual IEEE Semiconductor Thermal Measurement and Management Symposium, 2003. DA - 11/2003 DO - 10.1109/STHERM.2003.1194369 LA - eng N2 -

Hotspots, imposed by spatially non-uniform heat flux in a high performance circuit, increase the chip maximum junction temperature, which degrades the reliability and performance of electronic equipment. Microchannel heat sinks with two-phase convective heat transfer are effective for removing high heat flux exceeding 100 W/cm/sup 2/. Cross-linking of microchannels can be promising for achieving better temperature uniformity and more effective cooling due to the lateral fluid transport and mixing. This study experimentally investigates the impact of mass flow distribution on the chip temperature field in a multi-channel heat sink. Furthermore, the performance of two microchannel heat sinks is compared with different configurations: a regular microchannel heat sink and a cross-linked microchannel heat sink.

PY - 2003 EP - 242–246 T2 - Ninteenth Annual IEEE Semiconductor Thermal Measurement and Management Symposium, 2003. T3 - Ninteenth Annual IEEE Semiconductor Thermal Measurement and Management Symposium, 2003. TI - Experimental study on two-phase heat transfer in microchannel heat sinks with hotspots ER -