{"title":"Transient Simulation of Field-Effect Biosensors How to Avoid Charge Screening Effect","authors":"Kyoung Yeon Kim, Byung-Gook Park","doi":"10.1109/SISPAD.2019.8870481","DOIUrl":null,"url":null,"abstract":"We developed a numerical simulator to model the operation of a bio-FET in transient state. The simulator takes a realistic device structure as a simulation domain, and it employs the drift-diffusion equation for ion/ channel transport, and the Ramo-Shockley theorem for accurate calculation of non- faradaic current. For efficient transient simulation, the implicit time integration scheme is employed where the solution at each time step is obtained from the coupled Newton-Raphson method. Using the simulator, we found that the sensitivity of bio- FET can be improved with transient measurement by redistribution of the mobile ions by an external electric field.","PeriodicalId":6755,"journal":{"name":"2019 International Conference on Simulation of Semiconductor Processes and Devices (SISPAD)","volume":"94 1","pages":"1-3"},"PeriodicalIF":0.0000,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2019 International Conference on Simulation of Semiconductor Processes and Devices (SISPAD)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/SISPAD.2019.8870481","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
We developed a numerical simulator to model the operation of a bio-FET in transient state. The simulator takes a realistic device structure as a simulation domain, and it employs the drift-diffusion equation for ion/ channel transport, and the Ramo-Shockley theorem for accurate calculation of non- faradaic current. For efficient transient simulation, the implicit time integration scheme is employed where the solution at each time step is obtained from the coupled Newton-Raphson method. Using the simulator, we found that the sensitivity of bio- FET can be improved with transient measurement by redistribution of the mobile ions by an external electric field.