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- graded impurity concentration 缓变杂质浓度
- The formula for calculating the effective impurity concentration in the abrupt junction, the linearly graded junction and the random junction is deduced by using the capacity characteristics obtained when the reverse bias are applied to the p-n junction. 利用pn结反向偏压时的电容特性推导了有效杂质浓度随深度分布的计算公式及突变结和线性缓变结的1/(C2)-V和1/(C3)-V关系图。
- The impurity concentration profile depends on epitaxy growth velocity, growth time and impurity diffusion coefficient. 如果杂质的扩散系数很小，杂质在外延层中的深度分布是均匀的。
- Analysis focuses on the reason for impurity concentration in closed-cycle nitrogen-water precooling system of air separation unit.The solution to this problem is also presented. 分析了空分设备闭式循环氮水预冷系统杂质浓缩的原因,提出了处理措施。
- This work is fundamental for improving the techniques of multi laser induced diffusions to achieve two-dimensional impurity concentration uniformity theoretically. 这为改进激光诱导扩散工艺，用多次曝光实现面均匀的杂质浓度分布奠定了理论基础。
- A hollow profile of electron temperature appears in some stages,such as current ramping,pellet injection and impurity concentration in the plasma centre. 在某些实验条件下，如电流上升、弹丸注入和重杂质聚集，出现了电子温度的中空分布。
- In the process of doping Zn into InP induced by the pulsed laser,the temperature of the semiconductor and metal interface is one of the most important factors which affect the depth and impurity concentration of laser inducing doping. 脉冲激光诱导InP的Zn掺杂过程中;金属-半导体分界面附近的温度是影响掺杂浓度和掺杂深度的一个重要因素.
- Based on the theory analysis of photocurrent distribution in the base region of color sensor, it can be found that the impurity concentration and the junction depth arc the main factors. 在对器件基区中光生电流分布规律进行理论分析的基础上,得出硅双结型色敏器件中掺杂浓度和两个结的结深是影响光谱响应范围的主要因素。
- According to the “modified” complementary error function, the impurity concentration profiles were drawn at different diffusion coefficient, epitaxy growth velocity and growth time. 本文从理论上推导出掺杂外延生长时杂质浓度深度分布表达式；
- An additional feed method was developed to reduce the light impurity concentrations at the product end of a purge cascade in a centrifuge cascade used to purge enriched uranium. 为了降低用离心级联净化浓缩铀产品时净化级联精料端轻杂质的含量,研究了一种附加供料方法。
- Distribution of impurity concentration 扩散杂质浓度分布
- impurity concentration distribution 杂质浓度分布
- Pupils who pass the test will be promoted to the next higher grade. 小学生只要考试及格就会升到高年级。
- impurity concentration of piezoresistor 压阻掺杂浓度
- He's not in the first grade as a musician. 他不是第一流的音乐家。
- A student who gets 90% is graded A. 凡得90分的学生列为甲等。
- Business is now on the up grade. 目前生意蒸蒸日上。
- The term papers have been graded. 期末考卷已评完分数了。
- Pupils with 90% or more are awarded Grade A. 满90分的学生评为甲等。
- The oxygen react vigorously with the impurity in the iron. 氧气与铁中的杂质发生剧烈的化学反应。
