Tzu-shih Yen

Title: Tzu-shih Yen: Innovator in Memory Systems and Integrated Circuits

Introduction

Tzu-shih Yen is a prominent inventor based in Taipei, Taiwan. He has made significant contributions to the fields of memory systems and integrated circuits, holding a total of 9 patents. His innovative work has paved the way for advancements in high-density memory technologies.

Latest Patents

One of Tzu-shih Yen's latest patents is for a high-density memory array system. This memory system comprises a memory array with multiple memory units, a column decoder, a row decoder, a selecting/driving circuit, and a sensing circuit. Each memory unit includes a gate electrode connected to word lines, a source region linked to a source line or a first bit line, and a drain region connected to a drain line or a second bit line. The design also features a first spacer between the source region and the gate electrode, as well as a second spacer between the drain region and the gate electrode. During a first-bit program operation, a switch-on signal is applied to the gate, a programming signal is sent to the source region, and the drain region is grounded. This activation allows carriers to be injected and stored in the first spacer, representing the first bit in the memory unit.

Another notable patent involves high-density integrated circuits using tapered and self-aligned contacts. This method for fabricating contact holes in integrated circuits integrates the process of forming shallow tapered holes with self-alignment techniques. By first creating shallow tapered holes through isotropic etching and then extending them to full depth via anisotropic etching, self-aligned holes can be produced with fewer masking steps. The result is a set of self-aligned holes formed using a single photoresist mask.

Career Highlights

Tzu-shih Yen has worked with several notable companies throughout his career, including Vanguard International Semiconductor Corporation and Applied Intellectual Properties Co., Ltd. His experience in these organizations has contributed to his expertise in semiconductor technology and innovation.

Collaborations

Some of Tzu-shih Yen's coworkers include Erik S. Jeng and Fu-Liang Yang. Their collaborative efforts have likely played a role in advancing the projects they have worked on together.

Conclusion

Tzu-shih Yen's contributions to memory systems and integrated circuits demonstrate his innovative spirit and technical expertise. His patents reflect a commitment to advancing technology