Person:
Tummala, Rao R.

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    Biomedical implant packaging
    (Georgia Institute of Technology, 2011-05-31) Tummala, Rao R. ; Sundaram, Venkatesh
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    Proximity Lithography in Sub-10 Micron Circuitry for Packaging Substrate
    (Georgia Institute of Technology, 2010-11) Wang, Fengtao ; Liu, Fuhan ; Kong, Linghua ; Sundaram, Venky ; Tummala, Rao R. ; Adibi, Ali
    Rapid changes in the semiconductor industry will continue toward higher functionality that leads to higher input/outputs (I/O) counts, pushing packaging towards higher density architectures. In the next two to three years, the I/O pitch will fall within 100 μm for area array die and 30 μm for periphery die. That raises an important question to the packaging industry: How will the rapid shrinkage of the I/O pitch affect the package substrate for chip attaching? The answer is sub-10 micron copper line technology. Theoretical and experimental studies on the limitations of using mercury i-line ultraviolet photolithography have been carried at the Packaging Research Center at Georgia Tech. Furthermore, ultra fine copper line routing substrates are demonstrated for flip chip attaching by using semi-additive metallization process.
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    Single sensor that outputs narrowband multispectral images
    (Georgia Institute of Technology, 2010-01) Kong, Linghua ; Yi, Dingrong ; Sprigle, Stephen ; Wang, Fengtao ; Wang, Chao ; Liu, Fuhan ; Adibi, Ali ; Tummala, Rao R.
    We report the work of developing a hand-held (or miniaturized), low-cost, stand-alone, real-time-operation, narrow bandwidth multispectral imaging device for the detection of early stage pressure ulcers.
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    Single sensor that outputs narrowband multispectral images
    (Georgia Institute of Technology, 2010-01) Kong, Linghua ; Yi, Dingrong ; Sprigle, Stephen ; Wang, Fengtao ; Wang, Chao ; Liu, Fuhan ; Adibi, Ali ; Tummala, Rao R.
    We report the work of developing a hand-held (or miniaturized), low-cost, stand-alone, real-time-operation, narrow bandwidth multispectral imaging device for the detection of early stage pressure ulcers.
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    Detecting Early Stage Pressure Ulcer on Dark Skin Using Multispectral Imager
    (Georgia Institute of Technology, 2010) Yi, Dingrong ; Kong, Linghua ; Sprigle, Stephen ; Wang, Fengtao ; Wang, Chao ; Liu, Fuhan ; Adibi, Ali ; Tummala, Rao R.