Company Filing History:
Years Active: 1979
Title: The Innovations of Hans J Sigg
Introduction
Hans J Sigg is a notable inventor based in Sunnyvale, CA (US). He has made significant contributions to the field of semiconductor technology, particularly in the development of metal contact systems for integrated field-effect transistors (IGFETs). His innovative work has led to the granting of a patent that enhances the performance and reliability of these devices.
Latest Patents
Hans J Sigg holds a patent for "Refractory metal contacts for IGFETS." This patent describes a metal contact system designed for IGFETs with shallow source and drain regions. The system includes a refractory metal silicide layer that forms a low-resistance ohmic contact to a silicon surface. Additionally, it features a layer of another refractory metal that serves as a diffusion barrier against interconnect metal. The interconnect metal layer is deposited over this barrier. The refractory metal layers are deposited using sputtering techniques, specifically platinum or platinel for the first layer and titanium-tungsten for the second layer. In metal gate construction, an additional layer of chromium is utilized as an etch-resistant mask to protect the refractory metal layers from chemical attack during the removal of silicon nitride.
Career Highlights
Hans J Sigg has had a distinguished career, working at Signetics, a company known for its advancements in semiconductor technology. His work has been instrumental in improving the efficiency and effectiveness of IGFETs, which are critical components in modern electronic devices.
Collaborations
Throughout his career, Hans has collaborated with several talented individuals, including Ching W Lai and Warren C Rosvold. These collaborations have contributed to the successful development of innovative technologies in the semiconductor industry.
Conclusion
Hans J Sigg's contributions to the field of semiconductor technology, particularly through his patent on refractory metal contacts for IGFETs, highlight his role as an influential inventor. His work continues to impact the development of advanced electronic devices, showcasing the importance of innovation in technology.