Company Filing History:
Years Active: 2003-2014
Title: Innovations of Tzung Han Lee
Introduction
Tzung Han Lee is a prominent inventor based in Taipei, Taiwan. He has made significant contributions to the field of memory technology, holding a total of seven patents. His work focuses on advanced memory systems, particularly in the realm of random access memory.
Latest Patents
One of his latest patents is for a spin transfer torque random access memory. This invention includes a substance unit, a source line unit, an insulation unit, a transistor unit, a magnetic tunnel junction (MTJ) unit, and a bit line unit. The substance unit comprises a substance layer, while the source line unit features multiple source lines formed within this layer. The transistor unit consists of several transistors positioned on the source lines, each with a source region, drain region, channel region, and a surrounding gate region. The MTJ unit contains various MTJ structures placed on the transistors, and the bit line unit includes at least one bit line situated on the MTJ unit.
Another notable patent is for a vertical transistor for random-access memory, along with its manufacturing method. This method involves defining an active region on a semiconductor substrate, forming a shallow trench isolation structure, and etching the active region to create a gate dielectric layer and a positioning gate. The process continues with the formation of a word line, spacing layers, and the implantation of ions to create n-type and p-type regions. This innovative approach results in a vertical transistor with a stable threshold voltage.
Career Highlights
Tzung Han Lee has worked with several notable companies in the semiconductor industry, including Inotera Memories, Inc. and United Microelectronics Corporation. His experience in these organizations has allowed him to develop and refine his expertise in memory technologies.
Collaborations
Throughout his career, Tzung Han Lee has collaborated with talented individuals such as Chung-Lin Huang and Hsien-Wen Liu. These partnerships have contributed to the advancement of his innovative projects and patents.
Conclusion
Tzung Han Lee is a distinguished inventor whose work in memory technology has led to several important patents. His contributions continue to influence the field and pave the way for future innovations in random access memory systems.