Richard Crabb

Title: Richard Crabb: Innovator in Semiconductor Processing

Introduction

Richard Crabb is a notable inventor based in Mesa, AZ (US), recognized for his contributions to semiconductor technology. He holds a total of 8 patents, showcasing his innovative spirit and technical expertise in the field.

Latest Patents

Among his latest inventions is a semiconductor processing system featuring a gas curtain. This system is designed to prevent unwanted gases from entering a processing chamber. The gas curtain utilizes both upward and downward flows of gas surrounding an isolation valve adjacent to a delivery port. In the valve open position, the downward flow extends between the valve and the delivery port, while the upward flow moves in the opposite direction behind the isolation valve. In the closed position, one flow extends through a slot in the isolation valve, and the other is directed on the rear side. The method of using this gas curtain involves a pick-up wand operating on a Bernoulli principle, which switches gases just before loading wafers into the chamber. The second gas, ideally hydrogen, helps remove fugitive particles and moisture.

Another significant patent is for a chemical vapor deposition system. This invention outlines a system for chemically depositing materials carried by a reactant gas onto substrates for semiconductor device manufacturing. It includes specialized loading and unloading subsystems to ensure contamination-free processing. A unique substrate handling subsystem allows for the movement of substrates without physical contact with their surfaces. The processing subsystem features a horizontal gas flow reaction chamber with a rotatable susceptor, which averages temperature and reactant gas concentration variables.

Career Highlights

Richard Crabb has worked with several companies throughout his career, including Epsilon Technology Corporation and Advanced Semiconductor Materials America, Inc. His experience in these organizations has contributed to his development as an inventor in the semiconductor industry.

Collaborations

Some of his notable coworkers include Dennis L. Goodwin and McDonald Robinson. Their collaboration has likely fostered an environment of innovation and creativity in their respective projects.

Conclusion

Richard Crabb's contributions to semiconductor technology through his patents and career experiences highlight his role as a significant innovator in the field. His work continues to influence advancements in semiconductor processing systems.