A Five Mask CMOS LTPS Process With LDD and Only One Ion Implantation Step

被引:5
作者
Schalberger, Patrick [1 ]
Persidis, Efstathios [1 ]
Fruehauf, Norbert [1 ]
机构
[1] Univ Stuttgart, Display Technol, Allmandring 3b, D-70569 Stuttgart, Germany
关键词
poly-silicon; CMOS; ion implantation;
D O I
10.1080/15980316.2007.9652018
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We have developed a CMOS LTPS process which requires only five photolithographic masks and only one ion doping step. Drain/Source areas of NMOS TFTs were formed by PECVD deposition of a highly doped precursor layer while PMOS contact areas were defined by ion implantation. Single TFTs, inverters, ring oscillators and shift registers were fabricated. Nand p-channel devices reached field effect mobilities of 173cm(2)/Vs and 47cm(2)/Vs, respectively.
引用
收藏
页码:1 / 5
页数:5
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