Some hotel signage etched pattern is needed, it is how to make the principle of it?

一些酒店的标识牌的花纹是需要蚀刻的，那是如何制作的原理呢？

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Because the etched pattern will be effected by many factors, many technical difficulties such as getting the ideal etched pattern and monitoring the etching process have not been solved yet.

因影响半导体激光诱导液相腐蚀效果的因素很多，要得到理想的腐蚀图样以及监控腐蚀进程有着很大的技术难度，至今没有得到有效解决。

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Using nanofabrication techniques, the researchers etched tiny holes into the nitride to make a desired pattern, giving the waveguide the cloaking refractive index profile.

通过纳米制备技术研究者在氮化硅中刻蚀出许多空洞以构成所需图案，使得波导具有合适的隐形折射率。

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Their etched pattern takes its design from the unique architectural details of the specific buildings in front of which they are placed.

BBC: NEWS | UK | England | Tyne/Wear | Best foot forward for public art

This is a regular geometric pattern etched onto the surface of the tungsten.

ECONOMIST: Solar power

In particular, the processes by which the circuit pattern is first projected on to a chip's surface lithographically, and then etched on to it chemically, will need to be altered to take account of the fact that the surface is curved.

ECONOMIST: Semiconductors