Patent ID: 6280525
Filing Date: 2001-08-28
Classification: C23C

Abstract:
An apparatus for manufacturing a silica film, the apparatus comprising:a conveyor including a mounting unit and onto which a plurality of wafers may be loaded, the conveyor moving and thereby moving and transferring the wafers on the conveyor through the apparatus;a deposition part located above the conveyor, including at least one torch for sustaining a flame, for depositing silica soot on the wafers located on the conveyor;a calcination part, adjacent to the deposition part for heating the silica soot to a calcination temperature to remove water from the silica soot deposited on the wafers; anda sintering part, adjacent to the calcination part, for heating the silica soot deposited on the wafers to a densification temperature, higher than the calcination temperature, densifying the silica soot to form a silica film on the wafers wherein the wafers are continuously moved from the deposition part, through the calcination part, and to the sintering part by the conveyor.