Company Filing History:
Years Active: 1991-2015
Title: The Innovative Contributions of Ping Chang
Introduction
Ping Chang is a notable inventor based in Danville, CA (US), recognized for his significant contributions to the field of vapor deposition technology. With a total of 5 patents to his name, he has made remarkable advancements that enhance manufacturing processes in various industries.
Latest Patents
Among his latest innovations is the "Lift-off deposition system featuring a density optimized HULA substrate holder in a conical deposition chamber." This vapor deposition device utilizes a lift-off process that includes an evaporation source and a support frame that rotates about a first axis. The design features a central dome-shaped wafer holder aligned with the first axis and an orbital dome-shaped wafer holder that is offset and rotatable about a second axis. This configuration allows for multiple wafer positions, optimizing the deposition process.
Another significant invention is the "Electron beam gun," which incorporates an arched-shaped beam former as an integral part of a massive cathode block. This design effectively conducts heat away from the beam former and includes a filament mounted to the cathode block for improved alignment, enhancing the efficiency and precision of electron beam applications.
Career Highlights
Throughout his career, Ping Chang has worked with reputable companies such as The Boc Group, Inc. and Ferrotec (USA) Corporation. His experience in these organizations has contributed to his expertise in vapor deposition technologies and electron beam applications.
Collaborations
Ping has collaborated with notable professionals in his field, including P A Smith and Gregg Wallace. These partnerships have fostered innovation and the development of advanced technologies in vapor deposition.
Conclusion
Ping Chang's contributions to the field of vapor deposition technology and his innovative patents demonstrate his commitment to advancing manufacturing processes. His work continues to influence the industry and inspire future innovations.