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GaN RF Power Electronics




Sensor Electronic Technology, Inc.

Filing Date

September 27, 2001

Priority Date

September 27, 2000


Seoul Semiconductor - GaN


Seoul Semiconductor, a leading global innovator of LED products and technology, will auction its semiconductor Radio Frequency (RF) patent portfolio. The company is seeking the best buyer for 80 patent assets, including 54 US patents. The portfolio is relevant for

  • 5G,
  • radar,
  • satellite communications,
  • charging and
  • autonomous driving.


1. Martin Bijman, the director of intellectual property products at TechInsights has praised this portfolio: “It appears this ...
  1. Martin Bijman, the director of intellectual property products at TechInsights has praised this portfolio: “It appears this portfolio would be of interest considering it has some early patents in the segment, and is ranked fourth in Patent Influence after Cree (49%), Toyoda Gosei (14%), and Samsung (12%)" (source: iam)

  2. The patent portfolio is the result of more than $100 million in R&D by Sensor Electronic Technology, Inc. (SETi), which was founded in 1999 at the Rensselaer Polytechnic Institute in New York. SETi was at the forefront of GaN device development for high power RF and LED UV technologies. Since being acquired by Seoul Semiconductor, SETi focuses on LED UV technologies and now its GaN RF patent portfolio is heading for auction. Three of the patents are licensed to the U.S. Air Force and the U.S. Army, confirming the value of the portfolio. Find more details in the 5G Auction Brochure

  3. How does the portfolio measure up to the 3,000 most similar patents? Learn more here in the 5G Portfolio Comparsion.
  4. Who should be the buyer for the 5G portfolio and why? Click here to watch the IPWatchdog webinar about the 5G patent auction.

  5. Get access to the data room now. Please note that we may reject any bid and withdraw any or all patents for sale at any time. Seoul Semiconductor has set February 28, 2020 as the bid deadline for the auction. Please review the Auction Terms & Conditions prior to placing your bid. 

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October 03, 2019

These patents have significant value because high breakdown voltage is one of the hallmarks of GaN technology.
Applications: Power amplifiers
Companies: Sumitomo, Cree, Qorvo


June 20, 2019

The patents provide a significant amount of data showing improved noise, reverse leakage current, lower gate capacitance, comparable current performance and gain, reduced gate current.
Applications: Broad applications for reducing leakage current (and therefore static power consumption): GaN switches and amplifiers, photodetectors, low noise amplifiers
Companies: Qorvo, Infineon, MACOM, Custom MMIC


June 20, 2019

This portfolio can have potential value for high power products, not just RF.
Applications: Potential products include: high voltage switching regulator, 5G microwave switches, and automotive switch products are potential applications.
Companies: TI, Infineon, Cree, Navitas, GaN Systems, EPC, Dialog, and a number of military contractors - Boeing, HRL, Teledyne, Raytheon, Lockheed, etc.


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