共查询到20条相似文献,搜索用时 140 毫秒
1.
2.
瞬态剂量率辐射试验会引起集成电路发生损伤或失效,其原因至少有两种:闭锁大电流引起的电路内部金属互连熔融;累积电离总剂量引起的氧化层电荷造成阈值电压偏移。本文以一种0.13 μm体硅CMOS处理器为对象,研究了瞬态剂量率和稳态电离总剂量辐射效应规律。结果表明:瞬态剂量率闭锁效应对处理器造成了显著的潜在损伤,导致其总剂量失效阈值从1 030 Gy(Si)降低至600 Gy(Si)。研究结论对于大规模集成电路的可靠性评估和指导辐射加固设计有重要参考意义。 相似文献
3.
4.
5.
6.
贾天成 《核电子学与探测技术》1988,(2)
随着微电子技术的发展,先后出现了各种功能不同的大规模集成电路,这些器件虽然具有功耗低、集成度高、功能强等优点;但它们灵活性差、造价高,使用起来又不方便(必须和中小规模器件配合使用)。使用可编逻辑器件可使系统结构 相似文献
7.
离子束微制作技术对甚大规模集成电路、超大规模集成电路或者未来量子效应器件的制作由于其独特性能而越来越起重要的作用。并且它具有广泛的用途,包括蚀刻、沉积、掺杂、材料合成和改性以及平印术。对于蚀刻,需要具有原子标度的精密度和最低的损伤诱发的技术。本文讨论了低能离子束的重要性及其新蚀刻技术,比如数字蚀刻的特性。 相似文献
8.
9.
在同步辐射光刻光束线和实验站上进行大规模集成电路光刻,其均匀性问题直接影响暴光样品的成品率。利用计算机对暴光均匀性信号进行快速精细在线测量。讨论了光刻光束线在线实时控制系统和它的基本特征。 相似文献
10.
戴贵亮 《核电子学与探测技术》1986,(6)
三、互连技术:总线与网络 如把处理机或计算机间的任何连接泛称为互连,则互连技术涉及的范畴将包括总线,局部网络与大范围网络。图5表示三者互连长度和数据传输率的复盖范围。 相似文献
11.
12.
The competing reactions between existing Ni silicides surrounded by Si and Ni were investigated by thermal annealing and MeV Si ion beam mixing. With high energy irradiation, the energy deposition at both interfaces, Ni/Ni silicide and Ni silicide/Si, is equal. Two MeV He~- RBS and TEM were used to obtain the reacted layer composition and epitaxial orientation, respectively. Also glancing angle Co K_a. X-ray diffraction was utilized to identify phase formation. The main results indicate that the existing silicides preferentially react with Ni layer, and that there are pronounced differences of Ni silicide phase transition between thermal annealing and MeV Si ion beam mixing, even though the mixing was performed in radiation enhanced diffusion regime. The results can be explained in term of the heat of silicide formation and surface energy change. 相似文献
13.
14.
XIAOZhi-Song XUFei 《核技术(英文版)》2001,12(1):21-23
Neodymium silicides were synthesized by Nd ion implanted into Si substrates with the aid of a metal vapor vacuum are(MEVVA)ion source.The blender of Nd5Si4 and NdSi2 was formed in a neodymium-implanted silicon thin film during the as-implanted state,but there was only single neodymium silicide compound in the post-annealed state,and the phase changed from NdSi2 to Nd5Si4 with increasing annealing temperature.The blue-violet luminescence excited by ultra-viloet was observed at the room temperature(RT),and the intensity of photoluminescence(PL)increased with increasing the neodymium ion fluence,Moreover,the photoluminescence was closely dependent on the temperature of rapid thermal annealing(RTA),A mechanism of photoluminescence was discussed. 相似文献
15.
Stritzker和Becker用离于注入法制备了PdB_(1.5)合金,证实它具有超导性。Orsay组曾系统地研究过离子注入Pd_(1-x)B_x系(0≤x≤0.54)的电学性质,表明当B的浓度达到共晶浓度(x=0.27)时,Pd_(1-x)B_x为非晶态;当B的浓度x≥0.40时,样品具有超导性。 离子束混合利用载能离子穿越不同元素薄层和固体原子碰撞,引起原子离位的输运作用, 相似文献
16.
17.
18.
《Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms》1988,34(1):102-112
Ion beam induced mixing during sputter depth profiling was studied for tantalum and lead marker layers in silicon with 5 keV neon by low energy ion scattering spectroscopy (LEIS). The diffusion approximation was used to calculate mixing efficiency values (D/JFd) from decay length measurements. The mixing efficiency values are shown to be sensitive to the preferential sputtering which takes place during ion bombardment. TRIM simulations for Ta/Si are shown to agree with the experimentally determined value for preferential sputtering. Depth profiling at high temperature is shown to separate some of the interrelated mixing mechanisms of radiation enhanced diffusion (RED) and radiation induced segregation (RIS). For the Ta/Si system the mixing efficiency value is observed to remain constant regardless of the 5 keV inert gas ion beam used for depth profiling. 相似文献
19.