Abstract:
A method of fabricating a memory device is described. Generally, the method includes: forming on a surface of a substrate a dielectric stack including a tunneling dielectric and a charge-trapping layer overlying the tunneling dielectric; depositing a first cap layer comprising an oxide over the dielectric stack; forming a second cap layer comprising a nitride over the first cap layer; patterning the first and second cap layers and the dielectric stack to form a gate stack of a memory device; removing the second cap layer; and performing an oxidation process to form a blocking oxide over the charge-trapping layer, wherein the oxidation process consumes the first cap layer. Other embodiments are also described.
Abstract:
Molybdenum complexes and use thereof in thin film deposition, such as CVD and ALD are provided herein. The molybdenum complexes correspond in structure to Formula (I): wherein R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 , and R 10 are independently selected from the group consisting of hydrogen, alkyl, and trialkylsilyl; and at least one of R 1 , R 2 , R 3 , R 4 , R 5, R 6 , R 7 , R 8 , R 9 , and R 10 is trialkylsilyl.
Abstract:
Embodiments disclosed herein include an abatement system for abating compounds produced in semiconductor processes. The abatement system includes a plasma source that has a first plate and a second plate parallel to the first plate. An electrode is disposed between the first and second plates and an outer wall is disposed between the first and second plates surrounding the electrode. The plasma source has a first plurality of magnets disposed on the first plate and a second plurality of magnets disposed on the second plate. The magnetic field created by the first and second plurality of magnets is substantially perpendicular to the electric field created between the electrode and the outer wall. In this configuration, a dense plasma is created.
Abstract:
Methods are described for treating a carbon film on a semiconductor substrate. The carbon may have a high content of sp3 bonding to increase etch resistance and enable new applications as a hard mask. The carbon film may be referred to as diamond-like carbon before and even after treatment. The purpose of the treatment is to reduce the typically high stress of the deposited carbon film without sacrificing etch resistance. The treatment involves ion bombardment using plasma effluents formed from a local capacitive plasma. The local plasma is formed from one or more of inert gases, carbon-and-hydrogen precursors and/or nitrogen-containing precursors.
Abstract:
Methods for etching a dielectric barrier layer disposed on the substrate using a low temperature etching process along with a subsequent interface protection layer deposition process are provided. In one embodiment, a method for etching a dielectric barrier layer disposed on a substrate includes transferring a substrate having a dielectric barrier layer disposed thereon into an etching processing chamber, performing a treatment process on the dielectric barrier layer, remotely generating a plasma in an etching gas mixture supplied into the etching processing chamber to etch the treated dielectric barrier layer disposed on the substrate, plasma annealing the dielectric barrier layer to remove the dielectric barrier layer from the substrate, and forming an interface protection layer after the dielectric barrier is removed from the substrate.