The application discloses a manufacturing method of a 3D storage device and a
chemical vapor deposition method of an
adhesive film. The
chemical vapor deposition method includes: placing a
semiconductor structure with a deposition channel in a
reaction chamber, at least the sidewall of the deposition channel is covered by an
oxide layer; 4 The first reaction gas, containing H 2 The second reaction gas and the
inert gas, the volume /
mass of the first and second reaction gases are preset to a selected ratio; the
tail gas is discharged out of the
reaction chamber at a preset rate, the first reaction gas, the second reaction gas and the
inert gas The reaction produces TiCl x , the second reactant gas with TiCl x The reaction produces a Ti film covering the inner surface of the deposition channel as at least part of the adherent film, and the
tail gas includes unreacted TiCl 4 with TiCl x , when the volume /
mass ratio of the first reactant gas to the second reactant gas is preset at a selected ratio, the
inert gas slows down the TiCl 4 with TiCl x The
discharge rate of TiCl reaches the bottom and sidewall of the deposition channel x evenly distributed.