David A Barker

Title: David A Barker: Innovator in Semiconductor Technology

Introduction

David A Barker is a prominent inventor based in Walnut Creek, California, known for his significant contributions to semiconductor technology. With a total of 13 patents to his name, Barker has made notable advancements in the field, particularly in the areas of wafer ID reading and clean robotics.

Latest Patents

One of Barker's latest inventions is the "Simultaneous Wafer ID Reading." This invention discloses apparatuses and methods for simultaneously viewing and reading top and bottom images from a workpiece. The ID reader comprises an enclosure that covers both the top and bottom sections of the workpiece, equipped with optical elements to guide light from the workpiece images to a camera. The design allows for images to be received from a high angle relative to the surface of the workpiece. Additionally, the ID reader includes a light source assembly that can utilize both coaxial and non-coaxial light paths for bright field and dark field illumination, respectively.

Another significant patent is the "Clean Transfer Robot." This invention features a robot designed for improved cleanliness in clean environments. It has a uniform flow through the open interface between the clean environment and the robot's interior, effectively passing particles to an exhaust port and preventing contamination. The design focuses on reducing backflow and allows for scalability of the open interface, ensuring that particles generated from moving mechanisms within the robot do not compromise the clean environment.

Career Highlights

Throughout his career, David A Barker has worked with several notable companies, including Mattson Technology, Inc. and Dynamic Micro System Semiconductor Equipment GmbH. His experience in these organizations has contributed to his expertise in semiconductor equipment and robotics.

Collaborations

Barker has collaborated with several professionals in his field, including Farzad Tabrizi and Leszek Niewmierzycki. These collaborations have further enriched his work and innovations in semiconductor technology.

Conclusion

David A Barker stands out as a key innovator in the semiconductor industry, with a strong portfolio of patents that reflect his commitment to advancing technology. His inventions, particularly in wafer ID reading and clean robotics, demonstrate his ability to address complex challenges in the field.