摘要:
A method of integrating a post-etching cleaning process with deposition for a semiconductor device. A substrate having a damascene structure formed by etching a dielectric layer formed thereon using an overlying photoresist mask as an etching mask is provided. A cleaning process is performed by a supercritical fluid to remove the photoresist mask and post-etching by-products. An interconnect layer is formed in-situ in the damascene structure using the supercritical fluid as a reaction medium, wherein the cleaning process and the subsequent interconnect layer formation are performed in one process chamber or in different process chambers of a processing tool.
摘要:
An organic layer, such as a porous low-K dielectric in an IC, contains pores open at its surface. To close the pores, the organic layer is contacted by a supercritical fluid that is a solvent for the layer. After a small amount of the surface and the wall of the open pores is solvated, a phase transition of the solvated organic material is effected at the surface to cover it with a dense, smooth, non-porous film that seals the open pores.
摘要:
An organic layer, such as a porous low-K dielectric in an IC, contains pores open at its surface. To close the pores, the organic layer is contacted by a supercritical fluid that is a solvent for the layer. After a small amount of the surface and the wall of the open pores is solvated, a phase transition of the solvated organic material is effected at the surface to cover it with a dense, smooth, non-porous film that seals the open pores.
摘要:
System and method for reducing damage to a semiconductor substrate when using cleaning fluids at elevated pressures to clean the semiconductor substrates. A preferred embodiment comprises applying the cleaning fluid at a first pressure for a first time period, wherein the first pressure is relatively low, and then increasing the pressure of the cleaning fluid to a pressure level that can effectively clean the semiconductor substrate and maintaining the pressure level for a second time period. The application of the cleaning fluid at the relatively low initial pressure acts as a temporary filler and creates a buffer of the cleaning fluid on the semiconductor substrate and helps to dampen the impact of the subsequent high pressure application of the cleaning fluid on the semiconductor substrate.
摘要:
A method for treating an inter-metal dielectric (IMD) layer to improve a mechanical strength and/or repair plasma etching damage including providing a low-K silicon oxide containing dielectric insulating layer; and carrying out a super critical fluid treatment of the low-K dielectric insulating layer including supercritical CO2 and a solvent including a silicon bond forming substituent having a bonding energy greater than a Si—H to replace at least a portion of the Si—H bonds with the silicon bond forming substituent.
摘要:
A method for forming a damascene structure by providing a single process solution for resist ashing while avoiding and repairing plasma etching damage as well as removing absorbed moisture in the dielectric layer, the method including providing a substrate comprising an uppermost photoresist layer and an opening extending through a thickness of an inter-metal dielectric (IMD) layer to expose an underlying metal region; and, carrying out at least one supercritical fluid treatment comprising supercritical CO2, a first co-solvent, and an additive selected from the group consisting of a metal corrosion inhibitor and a metal anti-oxidation agent to remove the uppermost photoresist layer, as well as including an optional dielectric insulating layer bond forming agent.
摘要:
A method for forming a damascene structure by providing a single process solution for resist ashing while avoiding and repairing plasma etching damage as well as removing absorbed moisture in the dielectric layer, the method including providing a substrate comprising an uppermost photoresist layer and an opening extending through a thickness of an inter-metal dielectric (IMD) layer to expose an underlying metal region; and, carrying out at least one supercritical fluid treatment comprising supercritical CO2, a first co-solvent, and an additive selected from the group consisting of a metal corrosion inhibitor and a metal anti-oxidation agent to remove the uppermost photoresist layer, as well as including an optional dielectric insulating layer bond forming agent.
摘要:
A method for treating an inter-metal dielectric (IMD) layer to improve a mechanical strength and/or repair plasma etching damage including providing a low-K silicon oxide containing dielectric insulating layer; and carrying out a super critical fluid treatment of the low-K dielectric insulating layer including supercritical CO2 and a solvent including a silicon bond forming substituent having a bonding energy greater than a Si—H to replace at least a portion of the Si—H bonds with the silicon bond forming substituent.
摘要:
A method and apparatus involve providing a substrate having a dielectric layer formed thereon, forming a photoresist mask over the dielectric layer, the photoresist mask defining an opening, etching the dielectric layer through the at least one opening in the photoresist mask, treating a portion of the photoresist mask with an etching species, and removing the treated photoresist mask with a supercritical fluid. The etching, treating, and removing can be performed in one chamber.
摘要:
A method and apparatus involve providing a substrate having a dielectric layer formed thereon, forming a photoresist mask over the dielectric layer, the photoresist mask defining an opening, etching the dielectric layer through the at least one opening in the photoresist mask, treating a portion of the photoresist mask with an etching species, and removing the treated photoresist mask with a supercritical fluid. The etching, treating, and removing can be performed in one chamber.