CoolCAD designs and fabricates SiC Power MOSFETs and Diodes for high-voltage and high current applications. We offer Power MOSFETs at a variety of blocking voltages and currents, and can produce custom parts for your needs. CoolCAD is also the industry leader in SiC integrated circuits for high-temperature electronics that operate even above 500ºC. Being the only manufacturer that produces these chips in the United States, CoolCAD can meet your very-high temperature circuit requirements. CoolCAD also designs and fabricates SiC UV avalanche photodiodes, linear photodiodes and imaging arrays for deep UV sensing.

SiC Power MOSFETs

CoolCAD offers power DMOSFETs of a variety of breakdown voltages and current ratings. They have low on resistance and low leakage in the blocking state. We can also design and manufacture custom parts depending on your application. The power MOSFETs are fabricated on high quality SiC epitaxial layers. We use scientifically developed fabrication processes, including carefully chosen annealing procedures, to ensure high-quality oxides, SiC-SiO2 interfaces and reliability. Along with the gate oxide fabrication, the doping profile, neck region and edge termination structures are uniquely designed to ensure extremely low Ron as well as high breakdown voltage.   Contact CoolCAD for your power device needs.

Applications: SiC Power MOSFETs are ushering in a new generation of power electronics that goes well beyond the capabilities of standard silicon devices with respect to power, efficiency and portability. Specific applications include Power Converters; DC to DC converters, AC to DC converters, Switching Supplies; Electric Vehicles, Hybrid Vehicles, Solar Energy Power Converters, Wind Energy. 

SiC Power Diodes

CoolCAD offers power Diodes of a variety of breakdown voltages and current rating. We develop both Schottky Diodes and Junction Barrier Schottky (JBS) Diodes. They have low on-resistance and low leakage in the blocking state. We can also design and manufacture custom parts depending on your application. The power Diodes are fabricated on high quality SiC epitaxial layers. We use scientifically developed fabrication processes, including carefully chosen annealing procedures, to ensure high-quality metal-semiconductor contacts and barriers to provide low leakage and high reliability. Contact CoolCAD for your power device needs.

Applications: SiC Power Diodes are helping to usher in a new generation of power electronics that goes well beyond the capabilities of standard silicon devices with respect to power, efficiency and portability. SiC Power Diodes are especially useful for working in conjunction with SiC Power DMOSFETs to increase power converter switching speed. Specific applications include Power Converters; DC to DC converters, AC to DC converters, Switching Supplies; Electric Vehicles, Hybrid Vehicles, Solar Energy Power Converters, Wind Energy.

Very High Temperature Electronics

CoolCAD’s pioneering research in SiC has led to High Temperature Analog and Digital CMOS electronics that operate at temperatures as high as 500 oC. Silicon based electronics do not typically operate at temperatures greater than 250oC. However, CoolCAD’s electronics are made from the wide bandgap semiconductor SiC, which can operate at temperatures way higher than that of silicon. CoolCAD has developed unique SiC fabrication technology so we can make CMOS integrated circuits (chips) that operate at 300oC, 400oC and even 500oC. CoolCAD has developed digital and analog chips (amplifiers, logic and memory) that operate at 500oC. CoolCAD expects to soon be manufacturing microprocessors for 500oC operation. CoolCAD will also custom design and fabricate very high temperature electronics for your needs.

Applications: Smart sensor platforms for furnaces, Jet engine monitoring and control; Rocket engine monitoring and control; Elimination of wires by combining sensing and electronic control elements; down hole monitoring and control; Power generation control and sensing; automobile engine monitoring and control, monitoring and controlling of automobile and furnace exhaust  systems.

UV Avalanche Photodiodes (APD) and Avalanche Photodetectors

Avalanche Photodiodes (APD) are special solid-state photodetectors that have intrinsic gain. They can detect very low levels of UV light. APDs differ from standard photodetectors because in standard detectors one photon detected will generate one electron worth of current. The Avalanche Photodetectors are special because one photon will give rise to almost a million electrons worth of current. In other words, it has built-in gain and therefore highly sensitive.  In addition, CoolCAD’s UV APDs are “Solar Blind”. This means that the diodes are not affected by visible light and can detect very faint UV signals in broad daylight, and do not need any special optical filters. Our APDs can also operate in “Geiger Mode”, where a single UV photon can generate an electronic pulse. Photons can then be counted using standard pulse counting electronics. CoolCADs APDs are made from Silicon Carbide using special semiconductor processing technology. Their responsivity is centered around wavelengths of 270nm.

Applications: Fire and Flame Detection; Biohazards Water and Air sterilization and purification; Jet engine monitoring; Rocket engine monitoring; Virus decontamination, Geiger Mode operation. Down-hole applications, UV curing, Spectroscopy, Optical instrumentation; APDs can be much smaller and lower voltage substitute for glass photomultiplier tubes. Our APDs are especially useful for detecting low-intensity or very faint UV sources.

UV Linear Photodiodes

CoolCAD’s UV Linear Photodiodes generate Photocurrent that is proportional to the amount of UV incident light in range (190nm to 350nm). They are carefully fabricated from SiC using high-temperature semiconductor fabrication techniques.  CoolCAD’s linear diodes have high responsivity and benefit from having extremely low dark current. Since they do not suffer from visible light saturation, they can be used in broad daylight without a filter.

Applications: Fire and Flame Detection; Biohazards Water and Air sterilization and purification; Jet engine monitoring; Rocket engine monitoring; Virus decontamination, UV curing, Spectroscopy, Optical instrumentation.

UV Pixel Arrays and UV Imagers

CoolCAD designs and fabricates SiC Focal Plane Arrays for applications in UV imaging. These unique UV passive pixel arrays currently are available in various sizes, with 50 and 100 micrometer pitch.   CoolCAD’s UVC Passive Pixel Arrays generate photocurrent that is proportional to the amount of UV incident light in range (190nm to 350nm). These pixel arrays do not respond to visible light but are designed to function at their best in broad daylight, even without a filter. These unique products are made possible using CoolCAD’s specialized processing for SiC optoelectronic devices and circuits, that includes construction of distinct isolation between pixels to minimize cross-talk and optimize resolution.

Applications: Imaging of UV sources and UV Instrumentation and Spectroscopy. Photographing objects and scenes in the UV part of the spectrum. Imaging of surfaces and material defects. Can be used in broad daylight.