{"title":"Effect of parasitic resistance on mobility in laser crystallized LT poly-Si TFTs","authors":"Shih-chang Chang, Chung‐Chih Wu, I. Lu, Y. Chen","doi":"10.1109/ASID.1999.762765","DOIUrl":null,"url":null,"abstract":"Effect of parasitic resistance (Rp) on the mobility in laser-crystallized low-temperature (LT) poly-Si thin film transistors (TFTs) of various channel lengths was investigated The minimum off current at Vd=10 V in these TFTs is scalable and is about 0.15 pA//spl mu/m. Significant reduction of mobility was observed in short channel devices due to parasitic resistance. Based on our analysis of the Rp requirement for high-performance short-channel LT poly-Si TFTs, to avoid significant degradation in the mobility for the mobility larger than 300 cm/sup 2//Vs, it is necessary to keep Rp below 200 ohm.","PeriodicalId":170859,"journal":{"name":"Proceedings of 5th Asian Symposium on Information Display. ASID '99 (IEEE Cat. No.99EX291)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1999-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of 5th Asian Symposium on Information Display. ASID '99 (IEEE Cat. No.99EX291)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ASID.1999.762765","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 3
Abstract
Effect of parasitic resistance (Rp) on the mobility in laser-crystallized low-temperature (LT) poly-Si thin film transistors (TFTs) of various channel lengths was investigated The minimum off current at Vd=10 V in these TFTs is scalable and is about 0.15 pA//spl mu/m. Significant reduction of mobility was observed in short channel devices due to parasitic resistance. Based on our analysis of the Rp requirement for high-performance short-channel LT poly-Si TFTs, to avoid significant degradation in the mobility for the mobility larger than 300 cm/sup 2//Vs, it is necessary to keep Rp below 200 ohm.