On the optimal shape and location of silicided source and drain contacts

P. Oldiges1, C. Murthy1, Xinlin Wang1, S. Fung1, R. Purtell1
1Microelectronics Division, IBM Semiconductor Research and Development Center, Hopewell Junction, NY, USA

Tóm tắt

A detailed simulation and analysis of the source/drain resistance is performed. It is shown that the placement and depth of silicide regions can have a strong influence on the total source/drain resistance. Simulations further show that moving the silicided regions closer to the channel of a device will not necessarily decrease source/drain resistance, and may actually cause the resistance to increase. Lumped contact resistance, distributed resistance, Schottky contact models, and a new local distributed resistance model are compared.

Từ khóa

#Shape #Contact resistance #Silicides #Schottky barriers #Semiconductor process modeling #Doping profiles #Ohmic contacts #Research and development #Microelectronics #Analytical models

Tài liệu tham khảo

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