James H Hammar

Title: James H Hammar: Innovator in Wafer Holder Technology

Introduction

James H Hammar is a notable inventor based in Santa Cruz, CA (US). He has made significant contributions to the field of wafer holder technology. His innovative designs have paved the way for advancements in substrate handling.

Latest Patents

Hammar holds a patent for a "Wafer holder with spindle assembly and wafer holder actuator." This invention presents an improved wafer holder that features a spindle assembly and an actuator. In one embodiment, the vertical motion of a shaft drives an arm positioning member in a rotational motion. The arm positioning member is coupled to a first position of an arm, allowing the arm to move in a horizontal motion when the arm positioning member rotates. A substrate holding member is coupled to the arm at a second position, enabling the horizontal motion of the arm to move the substrate holding member between an open and a closed position. The shaft is moved vertically by an actuator, which consists of a first cylinder that expands and engages a spring to move the shaft upward, while a second cylinder retracts to disengage the first cylinder, moving the shaft downward. Hammar's patent is a testament to his innovative spirit and technical expertise, with 1 patent to his name.

Career Highlights

James H Hammar is currently associated with Ontrak Systems, Inc., where he continues to develop cutting-edge technologies. His work has been instrumental in enhancing the efficiency and functionality of wafer handling systems.

Collaborations

Hammar collaborates with Donald E Anderson, leveraging their combined expertise to drive innovation in their projects.

Conclusion

James H Hammar's contributions to wafer holder technology exemplify his dedication to innovation and excellence in engineering. His patent and ongoing work at Ontrak Systems, Inc. highlight his role as a key player in the field.