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The thermal performance of 2.5D package with integrated processor and 2 memory stacks has been investigated, and 4 types of thermal lids without increasing the package footprint has been designed and evaluated. The heat dissipation capabilities of different structures were first analyzed under natural convection condition, and then forced air cooling condition was considered in portable device scenario...
High performance test sockets with thermal management solutions have been developed for wafer level package of high power. Three types of active cooling solutions have been designed and integrated in the test socket. Type A of more compact size can be easily assembled in the space limited environment. Type B is much larger and more complex, including 4 direct touch copper heat pipes. Type C comprises...
Special Sensor Microwave Imager/Sounder (SSMIS) on board the US Defense Meteorology Satellite Program (DMSP) satellites includes six upper atmosphere sounding (UAS) channels. Radiances in three of the UAS channels, channels 19 - 21, are influenced by a combination of Doppler shift caused by Earth's rotation and the effect of the Zeeman-splitting of the O2 magnetic transition. In order to operationally...
The community radiative transfer model (CRTM), developed at U. S. Joint center for satellite data assimilation (JCSDA), has been used for infrared and microwave satellite radiance simulations and their derivatives to the surface/atmospheric parameters in the physical retrieval, data assimilation, and many others. CRTM has been become a key component in U. S. data assimilation for weather forecasting...
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