{"title":"Static Noise Margin Evaluation Method Based on Direct Polynomial-Curve-Fitting with Universal SRAM Cell Inverter TEG Measurement","authors":"Kazuyuki Nakamura, Kazunori Noda, H. Koike","doi":"10.1109/ICMTS.2009.4814599","DOIUrl":"https://doi.org/10.1109/ICMTS.2009.4814599","url":null,"abstract":"A new method to evaluate the Static Noise Margin (SNM) for leading-edge CMOS SRAM development is proposed. This method includes: (1) direct measurement of the inverter DC transfer curves using a \"Universal SRAM Cell Inverter TEG (USCIT)\" with arbitrary transistor ratios, (2) curve-fitting of the measured data to polynomial functions in a 45-degree rotated space, and (3) a database of the polynomial coefficients to evaluate and optimize the SNM by a simple algebraic operation. The SNM values obtained using this method are in good agreement with the measured SRAM operations.","PeriodicalId":175818,"journal":{"name":"2009 IEEE International Conference on Microelectronic Test Structures","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132780584","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}