This inventor holds 4 USPTO granted patents and 1 published patent application. Top assignees: Wacker-Chemitronic Gesellschaft Fur Elektronik-Grundstoffe Mbh, Siltronic Ag. Active years: 1988-2010.
Company Filing History:
3 out of 113 
1 out of 318 
Years Active: 1988-2010
Title: Innovations of Wolfgang Hensel in Semiconductor Technology
Introduction
Wolfgang Hensel is a notable inventor based in Burghausen, Germany. He has made significant contributions to the field of semiconductor technology, holding a total of 4 patents. His work focuses on the production and refinement of semiconductor wafers, which are essential components in various electronic devices.
Latest Patents
Hensel's latest patents include a method for producing unpolished semiconductor wafers. This innovative process involves several steps: pulling a single crystal of semiconductor material, grinding it, separating a wafer from the crystal, rounding its edges, surface-grinding, treating it with an etchant, and finally cleaning the wafer. The resulting unpolished semiconductor wafers exhibit remarkable properties, including a reflectivity of 95% or more, a surface roughness of 3 nm or less, and a thickness ranging from 80 to 2500 micrometers. Additionally, these wafers possess a native oxide layer with a thickness of 0.5 to 3 nm on both sides.
Another significant patent by Hensel is a method and apparatus for pulling single crystals from a melt of semiconductor material. This method allows a monocrystalline seed crystal to grow into a single crystal by dipping it into the melt and raising it in a controlled manner. The process is enhanced by recharging the melt with semiconductor material during the growth phase.
Career Highlights
Throughout his career, Wolfgang Hensel has worked with prominent companies in the semiconductor industry, including Wacker-Chemitronic and Siltronic AG. His expertise and innovative approaches have contributed to advancements in semiconductor manufacturing processes.
Collaborations
Hensel has collaborated with notable professionals in the field, including Erich Tomzig and Reinhard Wolf. These collaborations have further enriched his work and contributed to the development of cutting-edge technologies in semiconductor production.
Conclusion
Wolfgang Hensel's contributions to semiconductor technology through his patents and collaborations highlight his role as an influential inventor in the industry. His innovative methods for producing semiconductor wafers continue to impact the field significantly.