Abstract: A cooling apparatus may include a microchannel structure including a plurality of microchannels and a manifold disposed over the plurality of microchannels. The microchannel structure may be directly bonded to a chip and dissipate heat generated in the chip during an operation of the chip. The microchannel structure may further include a base over which the plurality of microchannels are disposed and a plurality of fins spaced apart from each other and disposed over the base.