半導體有classtool還有什麼

❶ ESD和半導體放電管什麼區別

ESD：electrostatic protection device 電子保護器 也稱：靜電保護 半導體放電管：Thyristor & Sidactor 它是用半導材料做成的，屬於二極體的一類 ，它是起開關作用，把大的能量泄放到大地。它主要指標有：通流量、動作電壓。
ESD與半導體放電管，同屬於過壓，峰值波涌吸收的器件，詳細你可以看看這家公司的產品手冊：它們裡面技術文檔很齊的，看看他的參數說明！
http://www.yint.com.cn/proctlist.asp?classid=926 它是半導體放電管的資料
http://www.yint.com.cn/proctlist.asp?classid=929 它是靜電ESD的資料

❷ 半導體凈化車間的微顆粒達不到class100，對矽片生產有什麼影響

去這個裡面。bbs.2ic.cn
資料很多。

❸ 什麼是3A類導體激光

應該是3A類半導體激光
半導體激光器產生於上世紀九十年代初，歐美等幾大公司相繼生產出可供商用的半導體激光二極體，使激光的實際應用價值發生了革命性的進步。其他種類的激光器由於產生激光的機理過於復雜，使其體積，重量特別大，功耗高等原因，大大限制了激光的應用。而半導體激光器的出現使這些問題迎刃而解。
半導體激光器體積小、重量輕、可靠性高、轉換效率高、功耗低、驅動電源簡單、能直接調制、結構簡單、價格低廉、使用安全、其應用領域非常廣泛。如光存儲、激光列印、激光照排、激光測距、條碼掃描、工業探測、測試測量儀器、激光顯示、醫療儀器、軍事、安防、野外探測、建築類掃平及標線類儀器、實驗室及教學演示、舞台燈光及激光表演、激光水平尺及各種標線定位等。

半導體激光器的一些獨特優點使之非常適合於軍事上的應用，如野外測距、槍炮等的瞄準、射擊模擬系統、致盲、對潛通信制導、引信、安防等。由於可用普通電池驅動，使一些攜帶型武器設備配置成為可能。

目前已開發出並投放市場的半導體激光器的波段有370nm、390nm、405nm、430nm、480nm、635nm、650nm、670nm、780nm、808nm、850nm、980nm、1310nm、1550nm等，其中1310nm、1550nm主要用於光纖通訊領域。405nm - 670nm為可見光波段，780nm - 1550nm為紅外光波段，390nm - 370nm為紫外光波段。

激光安全警示和使用注意事項

激光器是強度很高的光源輻射器件，大功率的激光器可以用於切割焊接金屬材料，所以激光對人體，特別是人眼有嚴重傷害，使用時需特別小心。國際上對激光有統一的分類和統一的安全警示標志，激光器分為四類（Class1～Class4），一類激光器對人是安全的，二類激光器對人有較輕的傷害，三類以上的激光器對人有嚴重傷害，使用時需特別注意，避免對人眼直射。

3a類激光器是指可見光激光器的出口光功率在1 - 5mw之間，一般認為對人的眼睛是不安全的，暴露在這種激光器的光束下會對眼睛的視網膜造成傷害，因此不能暴露在這種激光器的光束下或直視激光光束。

❹ 半導體與晶體管

半導體是一個很大來的范疇,晶體管自當然屬於半導體的范疇.
關於半島體的發展史,網上有很多文章,你可以搜索一下.
TSMC台積電今年將發表28nm設計流程,明年1Q投產;看來你提到的90nm技術已比較落後了.
www.semi.org.cn/news/news_show.aspx?ID=19577&classid=117

❺ 半導體設備 為什麼叫tool

任何設備本質上都是「工具」，只不過有簡單和復雜之分，功能之分。英語tool是「工具」的意思。所以半導體設備在英語裡面也可以叫「tool
」。

❻ 半導體激光器(將此文翻譯成英文）（將此文翻譯成英文）

Also known as laser diode laser diode (LD). Into the 1980s, it absorbed the physical development of the semiconctor up-to-date results, the use of quantum well (QW) and strained quantum well (SL-QW) structures, such as novelty, the introction of the refractive index molation Bragg launchers, as well as to enhance Bragg molation transmitter The latest technology, as well as the development of the MBE, MOCVD and the CBE, such as crystal growth technology of the new technology, making new epitaxial growth technology to precisely control crystal growth to the accuracy of atomic layer thick, high-quality growth of quantum wells, as well as strained quantum well materials. As a result, proction of the LD, the current threshold of a significant decline in conversion efficiency has been greatly improved the power output doubled, significantly longer service life.
A low-power LD
In the field of information technology for the rapid development of low-power LD. For example, for fiber-optic communications and optical switching systems distributed feedback (DFB) and the dynamic single-mode LD, narrow linewidth tunable DFB-LD, such as CD-ROM for information processing technology in the field of visible light Wavelength (such as wavelength of 670nm, 650nm, 630nm The blue-green to red) LD, surface-emitting quantum well, as well as ultra-short laser pulses substantive, which are all treated the development of LD. The development of these devices are: narrow-linewidth single-frequency, high-speed, as well as short-wavelength tunable optical and integrated single-chip, and so on.
B high-power LD
In 1983, a single wavelength of 800nm output power LD more than 100mW, to 1989, 0.1mm-wide LD be reached 3.7W continuous output, and 1cm linear array LD has reached 76W output, the conversion efficiency of 39%. In 1992, the Americans also targets to a new level: 1cm linear array LD CW output power up to 121W, the conversion efficiency of 45%. Now, the output power of 120W, 1500W, 3kW and many other high-power LD have been published. High-efficiency, high power LD array and its rapid development for all-solid-state laser, diode laser that is pumped (LDP) of the rapid development of solid-state laser provides strong.
In recent years, in order to adapt to the EDFA and the EDFL, and other needs of the wavelength of 980nm high-power LD is that there is great development. Fiber Bragg Grating with recently selected frequency for filtering, a significant improvement in the stability of its output, pump effectively improve the efficiency.
And the characteristics of the application: semiconctor diode laser is the most important practical for a class of lasers. Its small size, long life, and a simple injection of current-pumped his way to work with the voltage and current circuit-compatible, which can be integrated with a single. And also can be as high as GHz frequency molation direct current for high-speed molation of laser output. As a result of these advantages, the semiconctor diode laser in the laser communications, optical storage, optical gyros, laser printing, as well as radar range, and so on, as well as access to a wide range of applications.