|
This paper discusses making SOI material by silicon wafer direct bonding and making CMOS ccircular osccillator (1 μm) of SOI by ion injecting silicon gate. Because silicon film in SOI/SDB keeps nature of back silicon, characteristic of company transistor is good (mobility: NMOS 680 cm 2/V·s, PMOS 370 cm 2/V·s; conductance: NMOS 38 ms, PMOS 25 ms). However KINK effect of MOS transistor is discovered. With thinning silicon film, KINK... This paper discusses making SOI material by silicon wafer direct bonding and making CMOS ccircular osccillator (1 μm) of SOI by ion injecting silicon gate. Because silicon film in SOI/SDB keeps nature of back silicon, characteristic of company transistor is good (mobility: NMOS 680 cm 2/V·s, PMOS 370 cm 2/V·s; conductance: NMOS 38 ms, PMOS 25 ms). However KINK effect of MOS transistor is discovered. With thinning silicon film, KINK effect could be controlled. Delay time of 19 level CMOS circular oscillator in the experiment is 0.79 ns each. In short, SOI/SDB material shows good perspective in VLSI. 本文主要研究了硅片直接键合技术制备SOI材料,并在此材料上采用全离子注入硅栅工艺制造了1μm沟道CMOS环形振荡器。由于SOI。SDB中的硅膜保持着本体硅的性质,故所得陪管的特性比较好,(迁移率:NMOS为680cm2/V·s,PMOS为370cm2/V·s,跨导:NMOS为38mS,PMOS为25mS)。但发现MOS管具有“Kink”效应,随着硅膜厚度的减小,“Kink”效应有所抑制。实验所得CMOS19级环形振荡器的单级延时为0.79ns,由此可见,SOI/SDB材料在VLSI中将有很大的发展前景 The advancement of American stock markets and the scattered characteristic of company shares determine American Accounting Target is useful decision; The unadvancement of German and Japanese stock markets and the central characteristic of company shares determine their accounting target is entrusted duty. The stock markets in our country is unadvanced. There are two structure of company management organization control and Owner Management . So the accounting target should be turned into Accounting... The advancement of American stock markets and the scattered characteristic of company shares determine American Accounting Target is useful decision; The unadvancement of German and Japanese stock markets and the central characteristic of company shares determine their accounting target is entrusted duty. The stock markets in our country is unadvanced. There are two structure of company management organization control and Owner Management . So the accounting target should be turned into Accounting control on the basis of Western Entrusted Duty. Because of the specific of Marketing company, its accounting target should be Accounting control and useful Decision existing side by side. 美国证券市场发达,公司股权分散的特点,决定了美国的会计目标是决策有用观;德日证券市场不够发达,公司股权机构控制的特点,决定了德日的会计目标是受托责任观。我国证券市场不够发达,公司治理结构,既有机构控制型又有拥有者管理型,会计目标应在西方受托责任观基础上,转换成会计控制观;由于上市公司的特殊性,其会计目标应实行会计控制观和决策有用观并存。 The paper analyses the characteristic of company einance ,Discusses the deficiency of traditional compance einance ,Points up the sreat significance of modern company einance target . 分析了理财目标的特征 ,探讨了传统理财目标模式的缺陷 ,阐述了现代公司理财整体目标及其对公司长期健康发展的重大意义
|