Abstract:
A method of in-line characterization of ion implant process, during the SOI bond and cleave manufacturing or engineered silicon layer fabrication. In one embodiment, the method includes the steps of illuminating the engineered donor wafer using a modulated light source; performing a non-contact SPV measurement on the silicon wafer; measuring a dynamic charge (Qd) in response to implant induced crystal damage; and determining the accuracy and uniformity of the value of an implant parameter in response to the dynamic charge. In another embodiment, In another embodiment, the step of determining utilizes the equation VPV≈kTΦ/ωQnet where VPV is photo voltage generated in the implanted wafer, Φ is a light flux of the modulated light source, T is temperature of the wafer, and ω is a light modulation frequency of the modulated light source.
Abstract translation:离子注入工艺的在线表征的方法,在SOI键和切割制造或工程硅层制造期间。 在一个实施例中,该方法包括以下步骤:使用调制光源照射工程施主晶圆; 在硅晶片上执行非接触SPV测量; 响应于植入物诱导的晶体损伤测量动态电荷(Q SUB); 以及响应于动态电荷确定植入物参数的值的精度和均匀性。 在另一个实施例中,在另一个实施例中,确定步骤利用方程式V↑≈kTPhi/ωQ> net> where where where where where where where where where where where where where where where where where where where generated generated generated generated 在植入晶片中,Phi是调制光源的光通量,T是晶片的温度,ω是调制光源的调光频率。
Abstract:
A method and apparatus for thickness measurement of an active layer of a silicon-on-insulator material comprising a layered structure of silicon film, a buried oxide layer and a silicon substrate. In one embodiment, the method comprises the steps of directing a low intensity light of an energy greater than the silicon band-gap on the silicon film, the energy of light sufficient to be substantially absorbed within the silicon film such that the error from the substrate excitation is small compared to the small signal calibration of the apparatus; modifying the surface potential with the chemical treatment, electrical bias or corona, measuring surface photovoltage of the silicon film; and calculating the thickness of the silicon film in response to a non-contact photovoltage measurement of the semiconductor layered structure.
Abstract:
The invention relates to a method and apparatus for real-time in-situ implantation and measurement incorporating a feedback loop to adjust the implantation dose of a substrate during the manufacturing and testing of semiconductor wafers. During processing, the substrate, such as a silicon wafer, is transported between a measuring device and an implantation device multiple times to ensure that where the beam from the implantation device hits the substrate, the doping concentration falls within the range of desired parameters.