A MEMS stronglink with multi-try function used for PC startup in authentication system

LI Sheng-yong, CHEN Wen-yuan, ZHANG Wei-ping, XIAO Qi-jun, TAN Shun-yi, FENG Min-hua



Author NameAffiliation

LI Sheng-yong National Key Laboratory of Nano/Micro Fabrication Technology, Key Laboratory for Thin Film and Microfabrication of Ministry of Education, Research Institute of Micro/Nano Science and Technology, Shanghai Jiaotong University,Shanghai 200240, China, lishengyong@sjtu.edu.cn 

CHEN Wen-yuan National Key Laboratory of Nano/Micro Fabrication Technology, Key Laboratory for Thin Film and Microfabrication of Ministry of Education, Research Institute of Micro/Nano Science and Technology, Shanghai Jiaotong University,Shanghai 200240, China, lishengyong@sjtu.edu.cn 

ZHANG Wei-ping National Key Laboratory of Nano/Micro Fabrication Technology, Key Laboratory for Thin Film and Microfabrication of Ministry of Education, Research Institute of Micro/Nano Science and Technology, Shanghai Jiaotong University,Shanghai 200240, China, lishengyong@sjtu.edu.cn 

XIAO Qi-jun National Key Laboratory of Nano/Micro Fabrication Technology, Key Laboratory for Thin Film and Microfabrication of Ministry of Education, Research Institute of Micro/Nano Science and Technology, Shanghai Jiaotong University,Shanghai 200240, China, lishengyong@sjtu.edu.cn 

TAN Shun-yi National Key Laboratory of Nano/Micro Fabrication Technology, Key Laboratory for Thin Film and Microfabrication of Ministry of Education, Research Institute of Micro/Nano Science and Technology, Shanghai Jiaotong University,Shanghai 200240, China, lishengyong@sjtu.edu.cn 

FENG Min-hua National Key Laboratory of Nano/Micro Fabrication Technology, Key Laboratory for Thin Film and Microfabrication of Ministry of Education, Research Institute of Micro/Nano Science and Technology, Shanghai Jiaotong University,Shanghai 200240, China, lishengyong@sjtu.edu.cn 



Abstract:

The stronglink with multi-try function based on MEMS technology and the PC startup in authentication system have been designed and fabricated. The generation principle and structure of UQS code are introduced, which consists of two groups of metal counter-meshing gears, two pawl/ratchet mechanisms, two driving micromotors and two resetting micromotors. The energy-coupling element is a photoelectric sensor with a circular and notched plate. It is fabricated using the UV-LiGA process and precision mechanical engineering. The PC startup authentication system is controlled by BIOS program, which is written into the chip according with special format. The program in BIOS output signals controls the running of stronglink to finish the process of authentication. The device can run more than 10000 times before a stop. The driving voltage is 12 V, and the normal decoding time is 3 s.

Key words:  stronglink  multi-try  UQS  authentication  PC startup

DOI：10.11916/j.issn.1005-9113.2009.02.003

Clc Number:TH69; TP29

Fund: