Krishna Coimbatore Balram

Title: Innovations of Krishna Coimbatore Balram

Introduction

Krishna Coimbatore Balram is an accomplished inventor based in Stanford, CA. He has made significant contributions to the field of semiconductor technology, particularly in the development of innovative photodetectors and semiconductor growth processes. With a total of 2 patents, his work has implications for on-chip optical interconnect applications.

Latest Patents

One of his latest patents is titled "Selective area growth of germanium and silicon-germanium in silicon waveguides for on-chip optical interconnect applications." This patent describes a robust fabrication process for selective area growth of semiconductors in growth windows. The process eliminates sidewall growth by using a spacer layer that covers the sidewalls. It also prevents undesirable exposure of the top corners of the growth windows by undercutting the growth window prior to the deposition of the dielectric spacer layer. The effectiveness of this process has been demonstrated through selective-area growth of Ge and Ge/SiGe quantum wells on a silicon substrate. This innovation allows for the reliable integration of active optoelectronic devices with waveguide layers via end-coupling through the dielectric spacer layer.

Another notable patent is "Self-aligned semiconductor ridges in metallic slits as a platform for planar tunable nanoscale resonant photodetectors." This invention features a photodetector with a ridge-in-slit geometry, where a semiconductor ridge is laterally sandwiched in a metallic slit. This assembly is placed on a layer of semiconducting material, which is in turn situated on an insulating substrate. These structures can provide efficient resonant detectors, with the wavelength of peak response determined by the ridge width. This lateral feature defines the wavelength of peak responsivity, contrasting with traditional vertical features.

Career Highlights

Krishna Coimbatore Balram is affiliated with Leland Stanford Junior University, where he continues to advance research in semiconductor technologies. His work has garnered attention for its innovative approaches and practical applications in the field.

Collaborations

He has collaborated with notable colleagues, including David A B Miller and Stephanie Claussen, contributing to a dynamic research environment that fosters innovation.

Conclusion

Krishna Coimbatore Balram's contributions to semiconductor technology through his patents and research at Leland Stanford Junior University highlight his role as a leading inventor in the field. His innovative approaches