Search Results - timothy grotjohn

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Methods to Manufacture Large Area Single Crystal Diamond Substrates

Executive SummaryThe innovation of manufacturing silicon-based semiconductors led to a boom in the electronics industry, allowing for computer chips to be created. While cleanrooms, improved processing, and other advancements led to even more powerful chips, they are still inherently limited to the material properties of silicon. This suite of MSU technologies...
Published: 9/25/2018   |   Inventor(s): Timothy Grotjohn, Ramon Diaz, Aaron Hardy
Keywords(s):   Category(s): Advanced Materials, Materials

3-D Printer Technology

Executive SummaryThis novel 3-D print head technology allows for the addition of printing with multiple materials to 3-D printers. The technology allows both the deposition and removal of materials as well as surface property modifications in small, spatially localized regions.  This treatment can change the material’s physical properties, such as its...
Published: 5/16/2016   |   Inventor(s): Timothy Grotjohn
Keywords(s):   Category(s): Advanced Materials, Manufacturing Equipment, Subassemblies and Components

Miniature Microwave Plasma Torch

Description of TechnologyMichigan State University’s invention uses microwave-based plasma torch technology to provide a miniature version of the plasma torch. The miniature plasma torch operates at or near atmospheric pressure to process materials or render spectroscopy applications. The torch can provide a spot sized from a quarter millimeter to several...

Microstripline Circuits for Microwave Plasma Discharges

IntroductionWidely used in a variety of products and processes, plasmas are generated by applying a voltage between electrodes to facilitate gas ionization. The voltage may be static (DC) or varying at a fixed rate that can be in the RF range (<100 KHz) or as high as tens of MHz in frequency. Typical plasmas have a characteristic physical dimension...
Published: 11/10/2010   |   Inventor(s): Timothy Grotjohn, Jes Asmussen, Andy Wijaya
Keywords(s): MEMS, Microstrip, Microwave, Plasma, Stripline Category(s): Mechanical, Nanotechnology, Electrical