| 1. | A problem which is often attacked by resistivity measurements is to locate the depth at which saltwater invades fresh water in aquifers . 经常用电阻率测量来攻克的问题是确定含水层中盐水侵入淡水的深度。 |
| 2. | Metallic materials - resistivity measurement method 金属材料电阻系数测量方法 |
| 3. | Resistivity measurement for carbon fiber reinforced concrete 碳纤维增强水泥的电阻测试 |
| 4. | On resistivity measurement of conductive sponge 微波在静电测试中的应用 |
| 5. | Soil thermal resistivity measurements , guide for 土壤热阻率测量指南 |
| 6. | Guide for soil thermal resistivity measurements 土壤耐热性测量指南 |
| 7. | Resistivity measurements of dielectric films in ion - rich atmosphere 型纤维泄漏电阻测试仪的研制 |
| 8. | So in one hand it requires the wafer ' s diameter to be more large in order to enhance the productivity , and on the other hand it puts forward more strict requirement about the crystal perfection and electricity character . especially the electronic character and the equality of micro - area in the crystal wafer has become the key factor to determine whether the device can be made on it or not . so the resistivity measurement of micro - area become one most important procedure in the chip machining . to ensure the produce quality of chip and the perfect performance of final production , the four - probe testing technology need to be deeply studied 图形日益微细化,电路尺寸不断缩小,目前ic制造以8英寸、 0 . 13 m为主,预计在2007年左右将以12英寸、 65nm为主,这一方面要求圆片直径不断增大以提高生产率,另一方面对晶体的完美性、机械及电特性也提出了更为严格的要求。特别是微区的电学特性及其均匀性已经成为决定将来器件性能优劣的关键因素。因此,微区电阻率的测试成为芯片加工之中的重要工序。 |