edge isolation

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expansion joint

expansion joint, 1
1.A joint or gap between adjacent parts of a building, structure, or concrete work which permits their relative movement due to temperature changes (or other conditions) without rupture or damage.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
Usually, these segment-forming lines are much wider than the cell-forming lines in order to introduce good edge isolation between two segments; as a result, they will reduce the effective illuminated area of panels.
Companies such as Newport offer equipment to scribe or dice photovoltaic structures or provide laser edge isolation, laser drilling, or other laser machining.