Title :
Low temperature hybrid wafer bonding for 3D integration
Author :
Damian, A.A. ; Poelma, R.H. ; van Zeijl, H.W. ; Zhang, G.Q.
Author_Institution :
Lab. of ECTM, Delft Univ. of Technol., Delft, Netherlands
Abstract :
Techniques for the bonding of wafers and dies at low temperature are investigated. Controlled wet etching using acids is used to bond SiO2-SiO2 and Al-Al chips at room temperature. The bond strength is evaluated using die-shear tests. Infrared imaging and SEM analysis are used to inspect the bonding interface. The results are compared with data from fusion bonding experiments. Relatively high bond bond strengths for SiO2 and Al-terminated chips are achieved using bonding at room temperature.
Keywords :
aluminium; low-temperature techniques; silicon compounds; three-dimensional integrated circuits; wafer bonding; 3D integration; SEM analysis; bonding interface; controlled wet etching; die-shear tests; fusion bonding; infrared imaging; low temperature hybrid wafer bonding; room temperature; temperature 293 K to 298 K; Abstracts; Annealing; Hafnium; Micromechanical devices; Silicon; Standards;
Conference_Titel :
Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems (EuroSimE), 2013 14th International Conference on
Conference_Location :
Wroclaw
Print_ISBN :
978-1-4673-6138-5
DOI :
10.1109/EuroSimE.2013.6529968
