LED chip is fixed on aluminium layer of aluminium base PCB. The heat from chip can be spread ou...

芯片直接封装在铝基板的铝层上，芯片所产生的热量可以迅速通过铝层向外传到。

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LED chip is fixed on aluminium layer of aluminium base PCB. The heat from chip can be spread out through aluminium layer rapidly.

led芯片直接封装在铝基板的铝层上，芯片所产生的热量可以迅速通过铝层向外传到。

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Existing white LEDs are also based on blue ones, the light from which is used to excite a phosphor layer made of yttrium aluminium garnet (YAG).

现有的白色二极管同样基于蓝色的光——源于这种颜色的光是用于激发一种由钇铝石榴石组成的磷光层。

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Handling an iPhone 5 will definitely remove some portion of that layer of aluminium oxide.

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Either high or low ph environments will strip the anodising (what is effectively a layer of aluminium oxide) from the underlying metal.

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The device that Dr Kirczenow and Dr Rego had in mind is called a semiconductor heterostructure a semiconductor sandwich made of a thin layer of aluminium gallium arsenide held between two thicker layers of gallium arsenide.

ECONOMIST: Microelectronics