摘要:
Apparatus, devices, and methods for increasing the ion energy in a plasma processing devices are provided. In various embodiments, the surface area of a showerhead facing the work piece includes a plurality of features. The plurality of features increases the surface area of the showerhead relative to a flat surface. Increasing the surface area of the showerhead increases the ion energy without increasing the power used to generate the plasma. Increasing the ion energy using such a showerhead allows for the broader application of plasma processes in integrated circuit manufacturing.
摘要:
Improved methods and apparatus for stripping photoresist and removing ion implant related residues from a work piece surface are provided. According to various embodiments, the workpiece is exposed to a passivation plasma, allowed to cool for a period of time, and then exposed to an oxygen-based or hydrogen-based plasma to remove the photoresist and ion implant related residues. Aspects of the invention include reducing silicon loss, leaving little or no residue while maintaining an acceptable strip rate. In certain embodiments, methods and apparatus remove photoresist material after high-dose ion implantation processes.
摘要:
The present invention pertains to methods for removing unwanted material from a semiconductor wafer during wafer manufacturing. More specifically, the invention pertains to stripping photo-resist material and removing etch-related residues from a semiconductor wafer. Methods involve implementing a plasma operation using hydrogen and a weak oxidizing agent, such as carbon dioxide. The invention is effective at stripping photo-resist and removing residues from low-k dielectric material used in Damascene devices.
摘要:
The present invention pertains to methods for removing unwanted material from a semiconductor wafer during wafer manufacturing. More specifically, the invention pertains to stripping photo-resist material and removing etch-related residues from a semiconductor wafer. Methods involve implementing a plasma operation using hydrogen and a weak oxidizing agent, such as carbon dioxide. The invention is effective at stripping photo-resist and removing residues from low-k dielectric material used in Damascene devices.
摘要:
Improved methods for stripping photoresist and removing ion implant related residues from a work piece surface are provided. According to various embodiments, plasma is generated using elemental hydrogen, a fluorine-containing gas and a protectant gas. The plasma-activated gases reacts with the high-dose implant resist, removing both the crust and bulk resist layers, while simultaneously protecting exposed portions of the work piece surface. The work piece surface is substantially residue free with low silicon loss.
摘要:
Improved methods and apparatus for stripping photoresist and removing ion implant related residues from a work piece surface are provided. According to various embodiments, the workpiece is exposed to a passivation plasma, allowed to cool for a period of time, and then exposed to an oxygen-based or hydrogen-based plasma to remove the photoresist and ion implant related residues. Aspects of the invention include reducing silicon loss, leaving little or no residue while maintaining an acceptable strip rate. In certain embodiments, methods and apparatus remove photoresist material after high-dose ion implantation processes.
摘要:
The present invention pertains to methods for removing unwanted material from a semiconductor wafer during wafer manufacturing. More specifically, the invention pertains to stripping photo-resist material and removing etch-related residues from a semiconductor wafer. Methods involve implementing a plasma operation using hydrogen and a weak oxidizing agent, such as carbon dioxide. The invention is effective at stripping photo-resist and removing residues from low-k dielectric material used in Damascene devices.