Crystal Optoelectronics (002273) said on the interactive platform of the panoramic network on February 19 that the development of new products requires a long period of time. The company's current cooperation with Israeli companies is still in the sample delivery stage.
Investors asked about the progress of cooperation with Israeli companies, and the company responded. The company cooperates with Israeli companies for video glasses.
Crystal Optoelectronics' main business is the production and sales of optical low-pass filters, infrared cut-off filters, infrared cut-off filter sets, projector heat sinks and optical windows.
Control impedance PCB
Many customers asked us what information we need for impedence control PCB.Here,there are two types for PCB manufacturer,a is single impedance ,just one trace ,two holes .and b is differential impedance,it always go with 1 pair (two trace with same width and space). For single impedance,you just tell us the trace width one which layer and what value you require .For differential impedance,trace width/space,layers and value. Our experience engineers will calculate following your instruction with Polar software.We may change trace width/space or stackup ,but please do not worry, if any changes,we will send you to approve before proceeding. Generally,the tolerance is 10%,and more accurate is 8% .All impedance boards ,we will test here and report.
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Storm Circuit Technology Ltd , https://www.stormpcb.com