A
A-stage The condition of low molecular weight of a resin polymer during which the resin is readily soluble and fusible.
absorbtivity The percentage of infrared absorbed by a substrate as compared with the total incident infrared.
acceptance tests A set of tests performed to determine the acceptability of a board or assembly.
access holes A series of holes in successive layers, each set having a common center or axis. These holes in a PCB provide access to the surface of the land in one of the layers of the board.
accuracy (1) The difference between measured results and target values. (2) The difference between the measured result and the target value.
activated Condition in which a mixture has a higher chemical activity than normally found. ...
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