Chip-to-chip communication method and system for wireless testing

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The problem of chip-to-chip communication obtained recently a lot of attention. The purpose of this research is to investigate possible using for these purposes oscillators and oscillating systems with integrated transformers. The expected results will be particularly useful for wireless testing when the command to start testing is transmitted from a tester chip to the chip under test and then the information on testing results returns back to the tester. The idea of this research is based on two known experimental facts. First, in a sinusoidal oscillator with the integrated transformer primary used in the oscillation tank one can change and control the oscillation amplitude and frequency using strong variations of the load of the secondary. This load influence is usually considered as a parasitic effect. Yet a transformer can be considered as two interacting antennas. Then the described effect may be used for transmission of information via isolation gap from the oscillator located on one chip and where the primary is used as transmitting antenna to the secondary used as receiving antenna located on another chip and connected to a variable load or to a required electronic circuit. Second, in coupled oscillating systems of different powers one system becomes master and another becomes a slave: the synchronous oscillations frequency and amplitude are defined and controlled by the system of larger power. The intention of this research is to investigate this behavior when the systems are realization by electronic circuits and possible application of such circuits for chip-to-chip communication in wireless testing. The application of these two phenomena to the chip-to-chip communication was never considered, and it may be of utility in other areas. The economic value of this research can be also used in sensing, wireless communication, and chip fabrication.