摘要:
There are provided a method and an apparatus of forming an insulating layer including silicon oxynitride. The method includes performing a plasma treatment process for supplying a plasma reaction gas to a substrate to be treated after completing the annealing process. The apparatus includes a sealed processing room having gas supply and exhaust lines running thereto. A quartz inner tube and quartz inlet pipe both include holes therethrough, but in orthogonal directions to one another, to flow a reaction gas onto the wafers loaded within the sealed processing room.
摘要:
An apparatus for manufacturing a semiconductor includes a polyhedral transfer chamber, a first process module for forming a gate dielectric layer by ALD, and a second process module for thermally treating the gate dielectric layer. The first process module is in communication with a first side of the transfer chamber. The second process module in communication with a second side of the transfer chamber. The apparatus further includes at least one load-lock chamber in communication with a third side of the transfer chamber.
摘要:
A method of forming a floating gate of a non-volatile memory device can include etching a mask pattern formed between field isolation regions in a field isolation pattern on a substrate to recess a surface of the mask pattern below an upper surface of adjacent field isolation regions to form an opening having a width defined by a side wall of the adjacent field isolation regions above the surface. Then the adjacent field isolation regions is etched to increase the width of the opening.
摘要:
In a method of manufacturing a floating gate of a non-volatile semiconductor memory, a pattern is formed on a substrate to have an opening that exposes a portion of the substrate. A first preliminary polysilicon layer is formed on the pattern and the exposed portion of the substrate to substantially fill the opening. A first polysilicon layer is formed by partially etching the first preliminary polysilicon layer until a first void formed in the first preliminary polysilicon layer is exposed. A second polysilicon layer is formed on the first polysilicon layer.
摘要:
In a method of manufacturing a floating gate of a non-volatile semiconductor memory, a pattern is formed on a substrate to have an opening that exposes a portion of the substrate. A first preliminary polysilicon layer is formed on the pattern and the exposed portion of the substrate to substantially fill the opening. A first polysilicon layer is formed by partially etching the first preliminary polysilicon layer until a first void formed in the first preliminary polysilicon layer is exposed. A second polysilicon layer is formed on the first polysilicon layer.
摘要:
Disclosed herein is a method of forming a floating gate in a non-volatile memory device having a self-aligned shallow trench isolation (SA-STI) structure. First, a tunnel oxide layer is formed on a semiconductor substrate having a SA-STI structure. Next, a first floating gate layer is formed on the tunnel oxide layer at a first temperature of no less than about 530° C. A second floating gate layer is then formed on the first floating gate layer at a second temperature of no more than 580° C. After depositing the first floating gate layer, the second floating gate layer is in-situ deposited to prevent the growth of a native oxide layer on the surface of the first floating gate layer. Thus, gate resistance can be reduced and process time can be shortened.
摘要:
A method of forming a floating gate of a non-volatile memory device can include etching a mask pattern formed between field isolation regions in a field isolation pattern on a substrate to recess a surface of the mask pattern below an upper surface of adjacent field isolation regions to form an opening having a width defined by a side wall of the adjacent field isolation regions above the surface. Then the adjacent field isolation regions is etched to increase the width of the opening.
摘要:
In a method of manufacturing a semiconductor device such as a flash memory device, an insulating pattern having an opening is formed to partially expose a surface of a substrate. A first silicon layer is formed on the exposed surface portion of the substrate and the insulating pattern. The first silicon layer has an opened seam overlying the previously exposed portion of the substrate. A heat treatment on the substrate is performed at a temperature sufficient to induce silicon migration so as to cause the opened seam to be closed via the silicon migration. A second silicon layer is then formed on the first silicon layer. Thus, surface profile of a floating gate electrode obtained from the first and second silicon layers may be improved.
摘要:
In a method of manufacturing a semiconductor device such as a flash memory device, an insulating pattern having an opening is formed to partially expose a surface of a substrate. A first silicon layer is formed on the exposed surface portion of the substrate and the insulating pattern. The first silicon layer has an opened seam overlying the previously exposed portion of the substrate. A heat treatment on the substrate is performed at a temperature sufficient to induce silicon migration so as to cause the opened seam to be closed via the silicon migration. A second silicon layer is then formed on the first silicon layer. Thus, surface profile of a floating gate electrode obtained from the first and second silicon layers may be improved.
摘要:
In methods of forming an oxide layer and an oxynitride layer, a substrate is loaded into a reaction chamber having a first pressure and a first temperature. The oxide layer is formed on the substrate using a reaction gas while increasing a temperature of the reaction chamber from the first temperature to a second temperature under a second pressure. Additionally, the oxide layer is nitrified in the reaction chamber to form the oxynitride layer on the substrate. When the oxide layer and/or the oxynitride layer are formed on the substrate, minute patterns of a semiconductor device, for example a DRAM device, an SRAM device or an LOGIC device may be easily formed on the oxide layer or the oxynitride layer.