Test Procedures for Synchronized Oscillators Network CMOS VLSI Chip
Abstract
The paper presents test procedures designed for application-specific integrated circuit (ASIC) CMOS VLSI chip that implements a synchronized oscillator neural network with a matrix size of 32×32 for object detecting in binary images. Networks of synchronized oscillators are recently developed tool for image segmentation and analysis. This paper briefly introduces synchronized oscillators network. Basic chip analog building blocks with their test procedures and measurements results are presented. In order to do measurements, special basic building blocks test structures have been implemented in the chip. It let compare Spectre simulations results to measurements results. Moreover, basic chip analog building blocks measurements give precious information about their imperfections caused by MOS transistor mismatch. This information is very usable during design and improvement of a special setup for chip functional tests. Improvement of the setup is a digitally assisted analog technique. It is an idea of oscillators tuning procedure. Such setup, oscillators tuning procedure and segmentation of a sample binary image are presented.References
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