Our Leaders

Jeffrey Spiegelman

Jeff Spiegelman

President & Founder

Jeff is a serial entrepreneur with 30+ years of experience in the semiconductor industry. He founded Aeronex in 1990 and developed it into a global operation. After selling the company to Entegris, he founded RASIRC to generate and deliver new chemistries for complex device manufacturing.

Jeff has a Master's degree in Applied Mechanics and a Bachelor's degree in Bioengineering, both from the University of California at San Diego. He holds many international patents and is regularly published.

Team Member

Dan Alvarez, Jr.

Chief Technology Officer

Dan is responsible for the RASIRC strategic technology roadmap, including identifying opportunities and planning for risk and growth.

Dan earned a Ph.D. in Inorganic Chemistry from Indiana University, holds 18 US Patents and has written more than 20 technical and scientific publications. He previously worked at 3M Corporation, Aeronex, Mykrolis Corporation and his own consulting company. He also worked as a Fellow at California Institute of Technology and a community college Chemistry Instructor.

RASIRC Partners


Seojin Electron Co., Ltd.
4F. Hiart Bldg 1021-12, Kiownsun-Dong,
Kownsun-Gu, Suwon-City, Kyungki-Do, 441-822, Korea
Paul Jung
Phone: 82 31 237 9667


Taiyo Nippon Sanso Taiwan Co., Ltd.
5F-1, No.1 Sec.3 Gongdao 5th Rd., East Dist.,
Hsinchu City 30069, Taiwan, R.O.C.
Phone: +886-3572-6588 #520
Fax: +886-3573-8188
James Liao
E-mail: Jamesliao@tnst.com.tw


Inclusive Culture

RASIRC offers an exciting work environment where your contributions make a difference. Join our diverse team of engineers, chemists, machinists, technicians, marketers and support staff.

Cutting Edge Technology

RASIRC is a high growth company with award winning, patented products that purify and deliver ultra pure liquids and gases for the semiconductor and related markets.


Our team of industry experts has a proven track record of beating larger competitors to market by efficiently delivering state of the art technology that reduces cost, improves quality, and dramatically improves safety.


Patent #7,618,027

This patent is for a vaporizing device for control, delivery, and purification of water vapor in conjunction with a carrier gas. The patent is used in RainMaker humidification systems (RHS) to control the transfer and purification of water vapor directly into a carrier gas stream including inert, corrosive, and flammable gases, such as hydrogen, at a wide range of flow rates for use in solar, microelectronics, and other critical process applications.

Patent #7,625,015B2

This patent is for a novel adhesive and weld-free assembly technique for working with membranes and ultrapure materials. The patented process allows for the simultaneous sealing of multiple tubes within a single outer shell when an external radial compressive force is applied and is used in the RainMaker Humidification System (RHS).

Patent #8,282,708

This patent is for a novel method of producing ultrapure steam. The method is based on the ability to generate a high rate of diffusion of water vapor through a non-porous membrane. The patent is used in RASIRC products for a variety of applications including wet thermal oxidation and wafer cleaning for MEMS and semiconductor devices, backside passivation for solar cells, and steam annealing for amorphous metal oxide thin film transistors (TFTs).