Also called adhesive copper foil and copper foil tape is the copper metal surface covered a layer of acrylic rubber, can be divided into: double guide copper foil tape and single copper foil tape.

铜箔胶带也叫自粘铜箔，是在铜金属表面覆一层亚克力胶，可分为：双导铜箔胶带和单导铜箔胶带。

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The tape is designed to increase the spreading of light in the light guide from each LED, which greatly increases the allowable LED spacing.

ENGADGET: 3M Uniformity Tape improves lighting quality on LED edge-lit LCDs, lowers production costs

They're trying to push the envelope and they're trying to do some different things, and Herbie seemed to be the only person that came to mind who could guide us through the process of getting all of this stuff down on tape.

NPR: Terence Blanchard, in the Jazz 'Flow'