Location History:
- Pleasanton, CA (US) (1991)
- S. Rockwood, MI (US) (2003)
- Cambridge, MA (US) (2018 - 2020)
Company Filing History:
2 out of 2,963 
2 out of 832,843 Years Active: 1991-2020
Title: Inventor Spotlight: David E. Pastor
Introduction
David E. Pastor is an accomplished inventor based in Pleasanton, California, with a remarkable portfolio that includes four patents. His innovative contributions primarily focus on semiconductor technologies, particularly enhancing the properties of germanium films and hyperdoped semiconductors.
Latest Patents
Pastor's most recent patent, titled "N-type doping of strained epitaxial germanium films through co-implantation and nanosecond pulsed laser melting," outlines a method for fabricating an n-doped strained germanium (Ge) film. This process involves depositing a strained Ge film on a substrate, implanting electron-donating dopants, and exposing it to laser pulses between 1 nanosecond and 100 milliseconds. This method significantly improves the crystallinity of the Ge film, which can range from 10 nm to 1 micron in thickness.
Additionally, one of his other innovative patents is focused on the "Creation of hyperdoped semiconductors with concurrent high crystallinity and high sub-bandgap absorptance using nanosecond laser annealing." This method involves incorporating dopants into a semiconductor substrate, creating a doped polyphase surface layer. The surface is then optically annealed with laser pulses (1 to 50 nanoseconds) to achieve high crystallinity and optical absorptance above and below the bandgap.
Career Highlights
Throughout his career, David E. Pastor has worked with some notable institutions. His experience at Harvard College has allowed him to advance in the field of semiconductor research, which is evident in his patent creations. His work emphasizes the importance of innovation in material science and its applications.
Collaborations
Pastor has collaborated with prominent researchers, including Eric Mazur and Michael J. Aziz. These collaborations have contributed to his research depth and have strengthened the outcomes of his pioneering work in semiconductor technology.
Conclusion
David E. Pastor exemplifies the spirit of innovation with his impactful patents in semiconductor research. His advancements not only contribute to the scientific community but also pave the way for future technologies that leverage the unique properties of germanium and hyperdoped semiconductors. His continued work promises to yield significant breakthroughs in the field.