Fernando Alfaro

Title: Innovations by Fernando Alfaro in Pressure Sensor Technology

Introduction

Fernando Alfaro is an accomplished inventor based in Redwood City, CA. He holds a total of 4 patents that showcase his expertise in the field of pressure sensor technology. His innovative designs have contributed significantly to advancements in semiconductor MEMS pressure sensors.

Latest Patents

One of Alfaro's latest patents is a low-pressure sensor with stiffening ribs. This invention features semiconductor MEMS pressure sensors capable of producing a linear and large output signal when subjected to minimal pressure, without increasing the front-to-back span error. The design allows for large deflections without causing catastrophic damage to the membrane. The pressure sensor includes a silicon layer with opposing surfaces, an etched pattern on the surfaces, and an etched cavity on the opposite surface to form a membrane. The etched pattern consists of concentric stiffening ribs, an inverted boss, and large depression areas adjacent to the membrane edge. Piezoresistive strain concentrators are also integrated into the design, allowing for precise measurements.

Another notable patent is for light shields for catheter sensors. This invention addresses the issue of light sensitivity in pressure sensors and associated structures. The design provides structures that reduce light exposure at a component on the membrane of a pressure sensor, enhancing its performance in various applications.

Career Highlights

Throughout his career, Fernando Alfaro has worked with prominent companies in the field, including Silicon Microstructures, Inc. and Measurement Specialties, Incorporated. His contributions to these organizations have been instrumental in developing cutting-edge pressure sensor technologies.

Collaborations

Alfaro has collaborated with notable professionals in the industry, including Holger Doering and Stephen C. Terry. These partnerships have further enriched his work and led to significant advancements in sensor technology.

Conclusion

Fernando Alfaro's innovative contributions to pressure sensor technology demonstrate his expertise and commitment to advancing the field. His patents reflect a deep understanding of the challenges in sensor design and a dedication to finding effective solutions.