Patent classifications
H01J37/3479
METHODS OF MANUFACTURING SEMICONDUCTOR DEVICE AND SPUTTERING CHAMBERS
Embodiments are directed to a method of optimizing thickness of a target material film deposited on a semiconductor substrate in a semiconductor processing chamber, wherein the semiconductor processing chamber includes a magnetic assembly positioned on the semiconductor processing chamber, the magnetic assembly including a plurality of magnetic columns within the magnetic assembly. The method includes operating the semiconductor processing chamber to deposit a film of target material on a semiconductor substrate positioned within the semiconductor processing chamber, measuring an uniformity of the deposited film, adjusting a position of one or more magnetic columns in the magnetic assembly, and operating the semiconductor processing chamber to deposit the film of the target material after adjusting position of the one or more magnetic columns.
Physical vapor deposition (PVD) with target erosion profile monitoring
A physical vapor deposition (PVD) system includes: a chamber body; a substrate support disposed within the chamber body and capable of supporting a substrate; a PVD target; and a target profile monitoring subsystem. The PVD target includes: a target plate comprising a target material; and a backing plate attached to the target plate and comprising: a central section; and a peripheral section circumferentially surrounding the central section in a horizontal plane. The peripheral section has a first thickness in a vertical direction, the central section has a second thickness in the vertical direction, and the first thickness is larger than the second thickness. The target profile monitoring subsystem is configured to monitor usage of the target plate.
PHYSICAL VAPOR DEPOSITION (PVD) WITH TARGET EROSION PROFILE MONITORING
A physical vapor deposition (PVD) system includes a substrate support and a PVD target. The PVD target includes: a target plate comprising a target material, wherein the target plate having a flat top surface; and a backing plate. The backing plate includes: a central section; a peripheral section circumferentially surrounding the central section in a horizontal plane, wherein the peripheral section of the backing plate bends upward after the target material is consumed; and a flat bottom surface, wherein the flat bottom surface of the backing plate is attached to the flat top surface of the target plate, defining a flat interface between the backing plate and the target plate.