Statistical characterization of vertical poly-Si channel using charge pumping technique for 3D flash memory optimization
We analyzed the charge pumping signals in ultra-scaled 3D vertical devices. Statistical analysis has been used to characteristic the variability of poly-Si channel. The quality of bottom and top junctions with different process has been presented. Different poly-Si formations and hole sizes have been investigated. Different annealing conditions have been carried out for optimization of the channel of 3D flash memory.
charge pumping 3d flash memory optimization annealing poly silicon interface states