Thomas Klein

Title: Thomas Klein: Innovator in Dynamic MOS RAM Technology

Introduction

Thomas Klein is a prominent inventor based in Saratoga, CA (US). He has made significant contributions to the field of semiconductor technology, particularly in dynamic MOS RAM. With a total of 7 patents to his name, Klein's work has had a lasting impact on memory storage solutions.

Latest Patents

Klein's latest patents include a groundbreaking design for dynamic MOS RAM with storage cells that feature a mainly insulated first plate. This innovative design incorporates a plurality of selection lines and data lines connected to storage cells. Each storage cell consists of a storage capacitor with first and second plates, where the second plate is coupled to a reference potential terminal. The MOSFET in this design has a semiconductor substrate and a gate connected to one of the selection lines. The first plate of the storage capacitor is made of a first doped polysilicon conductive layer, which is insulated from the MOSFET's substrate. This design allows approximately 45% of the cell area to be utilized for charge storage, minimizing charge loss due to leakage.

Another notable patent is a method for making a semiconductor capacitor, which is particularly useful in integrated semiconductor structures with MOS devices. This semiconductor capacitor features a boron-implanted region in a substrate of P-type conductivity, followed by a shallow arsenic implant. This innovative structure prevents the formation of a surface N-type inversion layer, enhancing the performance of dynamic MOS random access memory.

Career Highlights

Klein has spent a significant portion of his career at National Semiconductor Corporation, where he has been instrumental in advancing semiconductor technology. His work has not only contributed to the company's success but has also influenced the broader field of memory technology.

Collaborations

Throughout his career, Klein has collaborated with notable colleagues, including Charles E. Boettcher and Andrew G. Varadi. These collaborations have fostered innovation and have led to the development of cutting-edge technologies in the semiconductor industry.

Conclusion

Thomas Klein's contributions to dynamic MOS RAM technology and semiconductor capacitors have established him as a key figure in the field. His innovative patents and career at National Semiconductor Corporation highlight his dedication to advancing technology. Klein's work continues to influence the future of memory storage solutions.