Modeling of ultra shallow junctions and hybrid source/drain profiles annealed by soak and spike RTA

C.C. Wang1, C.S. Chang1, P. Griffin2,1, C.H. Diaz1
1Taiwan Semiconductor Manufacturing Company Limited, Hsinchu, Taiwan
2Center for Integrated Systems, University of Stanford, Stanford, CA, USA

Tóm tắt

We discuss the 1D/2D modeling of arsenic profiles under soak and spike anneal conditions at both shallow extension and high concentration source/drain areas. This work also addresses the calibration of the phosphorus profile in a hybrid (arsenic + phosphorus) source/drain with various anneal temperatures. It is shown that the "+1" or modified "+n" model is not necessary for shallow arsenic profile modeling under spike anneal conditions. Finally, it is also shown that modeling of the hybrid source/drain profile can be achieved by optimization of the dopant's Fermi level dependent diffusivity, initial value of point defects concentration at equilibrium state, and neglect of implant induced damage.

Từ khóa

#Hybrid junctions #Annealing #Implants #Semiconductor process modeling #Calibration #Doping profiles #CMOS technology #Silicon #Research and development #Pulp manufacturing

Tài liệu tham khảo

10.1109/SISPAD.2000.871235 young, 0, A 0.13?m CMOS Technology with 193nm Lithography and Cu/Low-k for High Performance Applications, IEDM Tech Dig, 563 oh, 0, A calibrated Model for Trapping of Implanted Dopants at Material Interface During Thermal Annealing, IEDM Tech Dig, 509 diaz, 2000, A 0.15 ?m CMOS Foundry Technology with 0.1 ?m Devices for High Performance Applications, VLSI Tech Symp, 146 2000, Avanti's TSUPREM-4 ver 2000 2 0