RfTek is presently in its ninth year of operation (since July, 2002) and has served clients in the following industries:

• Semiconductors 
• Industrial, Scientific and Medical (ISM)
• Automotive
• Telecommunications
• Information Technology
• Consumer
• Contract Manufacturing
• Test Services

Client satisfaction with RfTek is of the utmost importance and we are proud to say that our clients have been consistently satisfied with our work.

 

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Summary of Past Projects

EMC and Radio Design

• Over 100 EMC design reviews of circuit boards (schematics, Bill-of-Materials) and physical board layout on circuit board designs
  
  • High Speed Telecommunication circuit packs with over 12 layers, multiple power supplies and multiple clock circuits ranging in frequency from a few MHz to a few GHz
• EMC design review of several computer and printer circuit boards
• EMC design review of several modems (4 layer boards) and medical devices (4 to 6 layer boards)
• Over 50 design reviews of industrial control circuit boards (sensors, relays, variable frequency drives, and programmable logic controllers)
• EMC reviews of power supplies associated with above products
• Multiple EMC mechanical design reviews to analyze enclosure design, shielding, gasketing, aperture design, and cable routing associated with the above products
• EMC review and design of low cost automotive microcontroller-based circuit boards
• Several radio and EMC design reviews of RF circuits including IEEE802.11x and wireless ISM designs

ESD Design and Test

• Establishment of ESD measurement techniques for a semiconductor corporate client in their reliability and corporate laboratories
• Design and specification of ESD protection circuits for RF inputs and outputs
• ESD waveform verification fixture design

EMC Test

• Performed and supervised hundreds of EMC tests in at least 20 different EMC laboratories
• Hundreds of EMC test reports composed
  

EMC Problem Evaluation and Solution

• Diagnosed and solved more than a hundred RF radiated and immunity problems in the laboratory, including ESD, EFTB, emissions, and immunity problems

EMC Laboratory Quality and Management (Per IEC 17025)

• Managed the specification, design, and installation of the Square D Company EMC laboratory in Knightdale, North Carolina
• Managed the technical operations of the Nortel Networks EMC laboratory in the Research Triangle Park, NC
• Managed the technical operations of the Solectron EMC laboratory in Durham, NC
• Designed and installed small EMC lab for RF Microdevices in Greensboro, NC

Circuit Design

• Have designed numerous analog, digital, power, and RF circuits

EMC, ESD, and Radio Compliance Training

• 5-day basic EMC training for automotive client
• 1-day ESD testing training for semiconductor client
• 1-day Radio compliance training for industrial computers client

David Guzman, owner of RfTek, has over 20 years of experience in analog, digital, RF, electromagnetic compatibility (EMC) and electrostatic discharge (ESD) design and test