Jack C. Carsten

Theta Microelectronics, Inc. provides radio frequency integrated circuits design services. It provides radio frequency integrated circuits for mobile and fixed wireless connectivity and video applications. The firm serves the mobile computing, imaging, multimedia, and communications markets. The company was founded by Yannis Tsividis and Yannis Papananos in 1994 and is headquartered in Coppell, TX.

HVVi Semiconductors is a fabless semiconductor company located in Phoenix, Arizona that manufactures high performance silicon RF power transistors. The company’s patented HVVFET™ is an impressive transistor architecture that combines high current density with high voltage operation. The transistor structure greatly reduces device parasitics which results in frequency performance greater than 10 times that of other vertical transistors, and has superior gain, linearity and ruggedness over bipolar transistors. In 2008, HVVi launched its first product families for the pulsed RF transistor market. Pulsed RF transistors are used in a variety of applications such as military/avionics, medical, and industrial technologies. These markets have been historically served by bipolar transistor technology, and LDMOS has made little penetration due to reliability issues. HVVi is poised to disrupt bipolar’s hold on the market due to the HVVFET’s superior gain, linearity, and ruggedness performance improvement over bipolar.

Spectra Linear, Inc. designs, develops, manufactures, and markets timing circuits. The company was founded in 2006 and is headquartered in Santa Clara, CA.

Toolwire, Inc. provides experiential learning solutions. It develops virtual learning labs for higher education and corporate customers that offer online skill and competency building in a broad range of subject areas, including business, health care, law, applied science, and information technology. The company was founded by David James Clarke IV in 1999 and is headquartered in Pleasanton, CA.

Horizon Ventures LLC (Horizon Ventures) is a venture capital firm founded in 1999 by Jack C, Carsten and John E. The firm is headquartered in Palo Altos, California.

Founded in 1991 by Jack Carsten, Technology Investments is a venture capital firm located in Los Altos, California.

Band of Angels LLC (Band of Angels) is an angel investment firm founded in 1994. The firm is headquartered in California.