Company Filing History:
Years Active: 2013-2016
Title: Yimin Wang: Innovator in Semiconductor Technology
Introduction
Yimin Wang is a prominent inventor based in Camas, WA (US), known for his significant contributions to semiconductor technology. With a total of 9 patents to his name, he has made remarkable advancements in the field of flash memory devices.
Latest Patents
Among his latest patents is the "Split Gate Flash Cell Semiconductor Device." This invention features a split gate flash cell device that incorporates floating gate transistors. Each floating gate transistor is constructed with a substructure that includes an oxide layer over a polysilicon gate, which is further supported by a gate oxide on a common source. The design includes nitride spacers along the sidewalls of the substructure, which protect portions of the gate oxide during an isotropic oxide etch. This etch process allows for the lateral recession of the oxide edges, resulting in a width that is narrower than that of the polysilicon gate. Additionally, an inter-gate dielectric is formed over the substructure, with control gates positioned above it to complete the floating gate transistors.
Another notable patent is the "Floating Gate Flash Cell with Extended Floating Gate." This invention describes a floating gate flash cell that consists of two floating gate transistors with a common source area in between. Each floating gate transistor features a floating gate that has a central portion above the substrate surface, with lateral edges extending into trenches below the surface. A control gate is placed over the floating gate, separated by a control gate dielectric. The design ensures that the floating gates have orthogonal side edges and a common source area positioned between the facing side edges of the floating gates.
Career Highlights
Yimin Wang has worked with several companies throughout his career, including WaferTech, Inc. and WaferTech, LLC. His experience in these organizations has contributed to his expertise in semiconductor technology and innovation.
Collaborations
Yimin has collaborated with various professionals in the field, including his coworker Raymond Li. Their joint efforts have further advanced the development of semiconductor devices.
Conclusion
Yimin Wang's innovative work in semiconductor technology, particularly in flash memory devices, has established him as a key figure in the industry. His patents reflect a deep understanding of the complexities involved in semiconductor design and fabrication.