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This study compared the results of room temperature direct wafer bonding of SiC-SiC accomplished by standard surface activated bonding (SAB) and modified SAB with a Si-containing Ar ion beam, in terms of bonding energy, interface structure and composition as well as the effects of rapid thermal annealing (RTA). Compared with that obtained by standard SAB, the bonding interface of modified SAB with...
Room temperature direct wafer bonding of SiC-SiC by standard surface-activated bonding (SAB) and modified SAB with a Si-containing Ar ion beam were compared in terms of bonding energy, interface structure and composition. Compared with that obtained by standard SAB, the bonding interface obtained by modified SAB with a Si-containing Ar ion beam is >30% stronger, which should be due to the in situ...
SiC-SiC and SiC-Si wafer bonding has been achieved by two different modified surface activated bonding (SAB) methods without any chemical-clean treatment and high temperature annealing. Bonding strength of SiC-SiC is even higher than 32MPa. Bonding strength of SiC-Si bonded pair is also higher than the bulk strength of Si. The bonded wafers were almost completely bonded without some voids or peripheral...
3-inch 4H-SiC wafer bonding has been achieved by the modified surface activated bonding (SAB) method without any chemical-clean treatment and high temperature annealing. Strong bonding of the SiC wafers, greater than 32MPa (tensile strength), was demonstrated at room temperature under 5kN force for 300 seconds. Almost the entire wafer has been bonded very well except the small outermost region and...
3-inch 4H-SiC wafer direct bonding has been achieved by the modified surface activated bonding (SAB) method without any chemical-clean treatment and high temperature annealing. Strong bonding of the SiC wafers, greater than 32MPa (tensile strength), was demonstrated at room temperature under 5kN force for 300 seconds. Almost the entire wafer has been bonded very well except the small outermost region...
Three variations of SAB method are compared for Si-Si direct bonding at room temperature. The bonded interfaces are characterized by amorphous layers depending on the surface activation processes by ion beam or plasma irradiation.
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