On-Chip Delay Degradation Measurement for Aging Compensation

A New Method for Time-Delay Compensation in Control Systems

In this paper a new method is introduced and investigated for removing the destabilizing effects of time-delay parameter in control loops. The concept of the method is taken from the knowledge concerning the dynamic behaviour of irrational transfer functions (Ir-TF), which is discussed and investigated elswhere in frequency response domain and is explained briefly here. Ir-TFs, which are we...

An Area Efficient Wide Range On-Chip Delay Measurement Architecture

Design and Measurement of an Inductance-Oscillator for Analyzing Inductance Impact on On-Chip Interconnect Delay

A newly devised inductance-oscillator (iOSC) has been developed which evaluates inductance impact on on-chip interconnect delay. iOSC is a ring oscillator which is comprised of a set of wires each with different loop inductance and accurate on-chip counter. The equivalent distance to the nearest ground grid, which serves as the current return path, is varied to control wire inductance. A test c...

Design of Signature Registers Using Scan Flip-flops for On-chip Delay Measurement

This paper presents a delay measurement techniques using signature analysis, and a scan design for the proposed delay measurement technique to detect small-delay defects. The proposed measurement technique measures the delay of the explicitly sensitized paths with the resolution of the on-chip variable clock generator. The proposed scan design realizes complete on-chip delay measurement in shor...

High-resolution and all-digital on-chip delay measurement with low supply sensitivity for SoC applications

An all-digital on-chip delay measurement (OCDM) architecture with high delay measurement resolution and low supply voltage sensitivity for efficiently detection and diagnosis in the high performance system-on-chip (SoC) applications is presented. Based on the proposed differential delay line pair (DDLP) and an cascadestage delay line, the quantization resolution of the proposed OCDM not only ha...