A new type of integrated circuit chip on-chip power supply noise self-regulating system and its regulating method

Abstract

The invention discloses an on-chip power supply noise autonomous adjustment system and adjustment method of a new integrated circuit chip. The system is composed of an adjustment trigger, a data selector and an adaptive control module. On the path, the adaptive control module is connected with the data selector. The system can adjust the delay sensitive path according to the real-time power supply noise, so as to avoid the path output error caused by the power supply noise. The on-chip power supply noise autonomous adjustment system designed by the present invention has less influence on the chip and is convenient to adjust, and can be used for real-time adjustment on the chip to weaken the influence of power supply noise on the chip and ensure the normal operation of the chip.

Description

technical field [0001] The invention relates to a system for adjusting power supply noise, more precisely, an on-chip power supply noise self-regulating system and method for a novel integrated circuit chip. Background technique [0002] An integrated circuit (integrated circuit) is a tiny electronic device or component. Using a certain process, the transistors required in a circuit (the transistors are the main devices in the gate circuit), resistors, capacitors, inductors and other components and wiring are interconnected together to make a small or several small semiconductor wafers Or on a dielectric substrate, and then packaged in a package to become a microstructure with the required circuit functions; all the components have been structurally integrated, making electronic components towards miniaturization, low power consumption, intelligence and high A big step forward in terms of reliability. According to their different functions and structures, integrated circui...

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Problems solved by technology

[0011] After searching the existing technical documents, it was found that Z.Abuhamdeh had published "Separating temperature effects from ring-oscillator raddings to measure true ir-drop on a chip" in IEEEInternational Test Conference (International Test Conference) in 2007. Oscillator influence to detect on-chip IR-Drop noise)” proposes a method to detect power supply noise by detecting the frequency change of the ring oscillator, but this method can only give the average power supply noise over a period of time, and does not involve the power supply noise peak

In 2005, T.Okumoto et al. published "A built-in technique for probing power-supply noise distribution within large-scale digital integrated circuits" in IEEE Journal of Solid-State Circuits (Journal of Solid-State Circuits). The technology used to detect the power supply noise distribution) ", proposed a method of using AD sampling to obtain the instantaneous noise of the power supply, usually the sampling frequency should be several times the system clock frequency, which will cause a large power consumption, while it is difficult to generate such a high frequency on chip

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