Characterization of Oxygen Precipitates in CZ-Silicon Crystals by Light-Scattering Tomography

-
The density and light-scattering intensity of oxygen precipitates in CZ silicon crystals are measured by IR light-scattering tomography. The numerical data clarified through the measurements are discussed in relation to the amount of precipitated oxygen. The results obtained here correspond well with the theoretical analysis that oxygen precipitates cause light to scatter. The information obtained by IR light-scattering tomography explains very well the precipitation process of oxygen in CZ silicon crystals, and the densities of precipitates obtained by this method are reliable.

Other products like Silicon Nitride Crystal Structure, Silicon Carbide Wafers, at semiconductorwafers.net.

评论

发表评论

此博客中的热门博文

Introduction about 40G QSFP+ SR4 BIDI modules

-
图片
With the development of the networks, upgrading the 10G to 40G networks is the requirement of networks, But there is a very largest problem to build the cable system when upgrading, especially the short distance transmission of 40G. So in order to solve this problem, 40G QSFP+ SR4 BIDI modules produced by engineers… And today, we will introduce this to you , and hope it can be helpful for you! 1. What is 40G QSFP+ SR4 BIDI ? 40G QSFP+ SR4 BIDI is different from the other 40G QSFP+ modules: Other 40G QSFP+ modules (such as QSFP+ SR4 / LR4) use 8 channels to realize 40G transmission, But the 40G QSFP+ SR4 BIDI just use 2pcs 20G channel to reach this function, every channel can transmit and receive the signal from one multimode cable, But also need notice that 40G QSFP+ SR4 BIDI must be used by pairs. 2. How does it work? To realize the 40G QSFP+ SR4 BIDI transmit the signal, need three steps: Step1: Combining four electrical signal to 2pcs 20G electrical signals;
阅读全文

Hantai's New Plan for 2020 | firesleeve-china.com

-
图片
Hello everyone, hope you enjoyed your new year’s holiday.  We,  Hantai , sincerely appreciate your continued support to us in the past and hope to have closer partnership with you in year 2020. Best wishes to you and your families for health and happiness throughout the year. New Year, New Beginning. Since established in 2009, Hantai has entered another decade in 2020. Today, I would like to take this opportunity to share our new plan for 2020 with you, our esteemed business partners. #1. New Production Machines To speed up our production and guarantee a shorter lead time, we plan to update and replace the current production machines with new ones step by step in 2020, especially for the fire sleeve. Besides, to enlarge our product range, we have already set up some new machines at our new plant. Running test of the new machines has been done and all of them can come into service after the CNY holiday in February. #2. New Products After launching the
阅读全文

Oxygen Facial Equipment

-
Our great Oxygen Facial Equipment is a new anti-aging treatment that uses the beneficial properties of pure oxygen for aesthetic and therapeutic purposes. In this aesthetic Oxygen facial device it is scientifically proven that O2 gives a lot of vitality to the cells, helps to eliminate free radicals, as well as reaffirming and rejuvenating the skin, since it stimulates the formation of collagen. Our team of Oxygen facial for aesthetics is not aggressive and is not even contraindicated in any case. This equipment can be worked on any type of skin, dry, oily or normal, both on the face and on other parts of the body: hands, neck, legs, etc. The facial oxygen jet peel machine is a great device at the service of aesthetics, with great benefits at a very low cost, almost at second hand. Very soon, the Oxygen facial machines will become essential in every aesthetic center. This Oxygen facial device for aesthetics is recommended from the age of 30, because it is scienti
阅读全文