Hualien, Taiwan

Wen Jer Tsai

This inventor holds 35 USPTO granted patents and 1 EPO patent, primarily in Non-Volatile Memory. Top assignee: Macronix International Co., Ltd.. Active years: 2001-2015.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Wen Jer Tsai. Retrieved from https://idiyas.com/inventor/wen-jer-tsai-7quy85bv

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile


% Patents Active = 100.0


Average Co-Inventor Count = 3.1

ph-index = 10

Forward Citations = 664(Granted Patents)


Location History:

  • Hsinchu, TW (2001 - 2006)
  • Hualien, TW (2004 - 2012)
  • Hualian, TW (2001 - 2013)
  • Hualien County, TW (2015)

Company Filing History:


Years Active: 2001-2015

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Areas of Expertise:
Non-Volatile Memory
Gated Diode
Memory Programming
Overerase Protection
Charge Trapping
Flash Memory
NAND-Type Memory
Data Retention
Multi-Level Memory
Memory Cell Array
Threshold Voltage
Memory Isolation
35 patents (USPTO):Explore Patents

Title: Innovator Spotlight: Wen Jer Tsai

Introduction: Wen Jer Tsai, based in Hualien, Taiwan, is a prolific inventor with an impressive portfolio of 35 patents to his name. His inventions mainly focus on advancements in non-volatile memory technologies. Tsai's contributions have significantly impacted the field of memory storage and processing.

Latest Patents: Among his latest innovations, Tsai developed a non-volatile memory system capable of programming cells through hot carrier injection. This system includes a bit line associated with multiple memory cells linked in a serial structure. The innovative control circuitry is responsible for programming a selected target cell by applying a bit line voltage that promotes hot carrier injection. Moreover, the circuit applies a programming voltage to the target cell and a control voltage to an adjacent control cell. This new method optimizes the efficiency of data programming in memory devices.

Another notable patent by Tsai is a method for manufacturing a multiple-bit-per-cell memory. This involves forming a first electrode on a substrate, followed by an inter-electrode layer that changes properties under stress, and finally placing a second electrode above it. This design allows the memory cell to store multiple bits of data and be programmed multiple times without needing an erase process, showcasing Tsai's innovative approach.

Career Highlights: Tsai is currently associated with Macronix International Co., Ltd., a leader in the non-volatile memory industry. His work at Macronix has involved pioneering research and development aimed at enhancing memory technologies, thereby impacting various applications in electronics.

Collaborations: Throughout his career, Tsai has collaborated with notable colleagues such as Chih Chieh Yeh and Tao Cheng Lu. Their shared expertise and innovative spirit have contributed to the successful development of memory-related technologies.

Conclusion: Wen Jer Tsai is a remarkable inventor whose advancements in non-volatile memory technologies reflect his dedication to innovation. With 35 patents under his belt and ongoing contributions at Macronix International Co., Ltd., Tsai continues to shape the future of memory systems, paving the way for more efficient data storage and processing solutions.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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