检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
机构地区:[1]中国科学院上海技术物理研究所,上海200083 [2]中国科学院研究生院,北京100039
出 处:《半导体光电》2012年第5期683-685,702,共4页Semiconductor Optoelectronics
基 金:国家自然科学基金项目(60907048)
摘 要:碲镉汞(HgCdTe)红外探测器制备中的化学-机械抛光工艺会在碲镉汞材料表面形成一定深度的损伤层。用溴-甲醇化学机械抛光取代溴腐蚀工艺,有效地降低了抛光过程所产生的表面损伤。在溴-甲醇抛光工艺中,可变参数有溶液的浓度比、抛光时间、转盘转速等,不同的参数组合对于抛光效果有不同的影响,经过正交试验可以以较少的试验次数高效经济地得到最佳的溴-甲醇抛光工艺参数组合。以该优化参数进行抛光所得到的碲镉汞材料通过XRD测试以及Ar+刻蚀后表面形貌的测试表明,HgCdTe晶片表面剩余损伤大大减小。The traditional chemo-mechanical polishing process leaves damages on the surface of the MCT wafers to a certain depth in the production of HgCdTe infrared detectors.Chemical etching can reduce some of those damages,however leaves a rough surface.Chemo-mechanical polishing with bromine-methanol can reduce the damage more effectively,produce stoichiometric MCT surface and increase the minority carrier lifetime while the surface is smooth and mirror-like.There are three variable parameters in bromine-methanol polishing which are volume ratio of bromine-methanol,polishing time and rotating rate of the turntable.Different parameters will make different polishing effect.Orthogonal experiment can present the best polishing parameters more effectively and economically with fewer experiments in quantity.The MCT wafers were polished with the optimized parameters and then exposed to XRD measurement.The XRD results show that the damages are removed effectively.The morphology of the surface after Ar+ ion etching affirms the XRD results.
分 类 号:TN305.5[电子电信—物理电子学]
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.200