Company Filing History:
2 out of 788 
1 out of 2,672 
Years Active: 1991-1994
Title: The Innovations of David W De Roo
Introduction
David W De Roo is an accomplished inventor based in Carmel, IN (US). He holds 2 patents that showcase his expertise in the field of microelectronics and sensor technology. His innovative contributions have significantly advanced the capabilities of microaccelerometers and pressure sensors.
Latest Patents
One of his latest patents is titled "Microaccelerometer having low stress bonds and means for preventing." This invention provides a microaccelerometer that features a silicon substrate bonded to a silicon capping plate and back plate. The bonds between these silicon wafers are characterized by a relatively low residual stress level over a wide temperature range. This design allows for stress relief during the use and packaging of the microaccelerometer, ensuring accurate control of the damping distance for the proof mass. Additionally, stop means are included to prevent excessive deflection of the proof mass in a direction perpendicular to the plane of the microaccelerometer.
Another significant patent by De Roo is the "Method for forming thin silicon membrane or beam." This method involves forming thin, suspended membranes of epitaxial silicon material. Silicon oxide strips are created on a silicon substrate, and the gaps between adjacent beams serve as seed holes for subsequent epitaxial growth. This process results in thin, single crystal silicon membranes that are suitable for use as diaphragms and microbridges in microaccelerometers or pressure sensors.
Career Highlights
Throughout his career, David W De Roo has worked with notable organizations such as Delco Electronics Corporation and Purdue Research Foundation. His experience in these companies has contributed to his development as a leading inventor in his field.
Collaborations
De Roo has collaborated with several professionals, including Steven E Staller and James H Logsdon. These partnerships have likely enriched his work and led to further advancements in technology.
Conclusion
David W De Roo's contributions to the field of microelectronics through his patents and collaborations highlight his innovative spirit and dedication to advancing technology. His work continues to influence the development of microaccelerometers and pressure sensors, showcasing the importance of innovation in engineering.