Company Filing History:
1 out of 113 
1 out of 42 
Years Active: 1981-2000
Title: The Innovations of Hans Kramer
Introduction
Hans Kramer is a notable inventor based in Burghausen, Germany. He has made significant contributions to the field of semiconductor technology, holding 2 patents that showcase his innovative spirit and technical expertise.
Latest Patents
One of Hans Kramer's latest patents is a "Process and device for polishing semiconductor wafers." This invention involves a process where at least one side of a semiconductor wafer is pressed against a polishing plate, over which a polishing cloth is stretched. The semiconductor wafer and the polishing plate are moved relative to each other to achieve the desired polishing effect. During this process, the wafer passes over at least two regions on the polishing plate, which have defined radial widths and are maintained at different temperatures. Temperature-control means are integrated into the polishing plate, allowing for precise adjustments to the number, radial widths, and temperatures of these regions before the polishing begins.
Another significant patent is the "Process for evening out the amount of material removed from discs." In conventional polishing machines, uneven pressure transmission can lead to varying degrees of abrasion on the polished discs, resulting in inconsistent thicknesses. Hans Kramer's invention addresses this issue by incorporating soft elastic inserts between the pressure piston and the back of the carrier plate, ensuring a more uniform polishing process.
Career Highlights
Throughout his career, Hans Kramer has worked with prominent companies in the semiconductor industry. Notable among these are Wacker-Chemitronic Gesellschaft für Elektronik-Grundstoffe mbH and Wacker Siltronic Gesellschaft für Halbleitermaterialien AG. His experience in these organizations has contributed to his deep understanding of semiconductor materials and processes.
Collaborations
Hans Kramer has collaborated with several talented individuals in his field, including Helmuth Kirschner and Heinrich Hennhofer. These partnerships have likely enriched his work and led to further advancements in semiconductor technology.
Conclusion
Hans Kramer is a distinguished inventor whose work in semiconductor polishing processes has made a significant impact on the industry. His innovative patents reflect his commitment to improving technology and enhancing manufacturing processes.