Wireless communication in a flip-chip package using integrated antennas on silicon substrates

J. Branch, X. Guo, L. Gao, A. Sugavanam, Jau Jr Lin, K. K. O

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37 Citations (Scopus)


An intrachip wireless interconnect using integrated antennas is demonstrated in a flip-chip ball grid array package. The wireless interconnect consists of a transmitter-receiver pair, which is fabricated in a 0.18-μm CMOS process. A 15-GHz signal is generated and broadcasted across the integrated circuit. The signal is picked up by a receiver 4 mm away on the same integrated circuit and frequency divided by eight to produce a 1.875-GHz local clock signal. The interconnection is also demonstrated between a transmitting antenna and a packaged receiver 40 cm away from the transmitting antenna. Demonstration of intrachip wireless interconnects in a package has been considered the ultimate test for this technology.

Original languageEnglish
Pages (from-to)115-117
Number of pages3
JournalIEEE Electron Device Letters
Issue number2
Publication statusPublished - 2005 Feb 1


All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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