Company Filing History:
Years Active: 1981-1983
Title: Hartwig Bierhenke: Innovator in Semiconductor Technology
Introduction
Hartwig Bierhenke is a notable inventor based in Grafing, Germany. He has made significant contributions to the field of semiconductor technology, holding a total of 2 patents. His work focuses on innovative methods for producing relief structures and charge-coupled components.
Latest Patents
Bierhenke's latest patents include a method of producing relief structures for integrated semiconductors. This method involves applying a lower lacquer layer onto a substrate that already has relief structures. The lower layer is composed of a material that does not cross-link or decompose due to radiation energy. An upper lacquer layer, which is thinner than the lower layer, is then applied. This upper layer is made of a highly sensitive negative lacquer material. The desired relief structures are generated in the upper lacquer layer, and the portions of the lower lacquer that are not covered by the upper layer are removed.
Another significant patent is related to a charge-coupled component formed on gallium arsenide. This invention features electrodes with blocking properties arranged in series on a semiconductor member made of gallium arsenide. The semiconductor member includes a semi-insulating gallium arsenide substrate with an n-conductive layer that has a specific charge carrier concentration. The electrodes create a blocking transition with this n-conductive layer, enhancing the functionality of the component.
Career Highlights
Hartwig Bierhenke is associated with Siemens Aktiengesellschaft, a leading global technology company. His work at Siemens has allowed him to explore and develop advanced semiconductor technologies that have practical applications in various industries.
Collaborations
Throughout his career, Bierhenke has collaborated with notable colleagues, including Walter Kellner and Hermann Kniepkamp. These collaborations have contributed to the advancement of semiconductor technologies and innovations.
Conclusion
Hartwig Bierhenke is a distinguished inventor whose work in semiconductor technology has led to significant advancements. His patents reflect his innovative approach and dedication to enhancing the field. His contributions continue to influence the industry and inspire future innovations.