摘要:
An in-situ deposition method allows for the forming of a dielectric layer suitable for use in forming a conductive path in a semiconductor wafer. The method includes depositing a thin SiO.sub.x N.sub.y stop layer on top of a semiconductor wafer within a chemical vapor deposition (CVD) reactor chamber having a low pressure, maintaining the low pressure following the deposition of the SiO.sub.x N.sub.y stop layer, and then depositing a thick TEOS oxide dielectric layer on the SiO.sub.x N.sub.y stop layer within the CVD reactor chamber. The in-situ deposition process reduces outgassing defects that would normally form at the interface between the SiON stop layer and the TEOS oxide dielectric layer.
摘要翻译:原位沉积方法允许形成适合用于在半导体晶片中形成导电路径的电介质层。 该方法包括在具有低压的化学气相沉积(CVD)反应器室内的半导体晶片的顶部上沉积薄的SiOxNy阻挡层,保持在沉积SiO x N y终止层之后的低压,然后沉积厚的TEOS氧化物 在CVD反应器室内的SiOxNy停止层上的介电层。 原位沉积过程减少了通常在SiON阻挡层和TEOS氧化物介电层之间的界面处形成的除气缺陷。
摘要:
A semiconductor structure includes a substrate, a microelectronic device formed on the substrate, and a dielectric layer including silicon dioxide formed over the microelectronic device. The silicon dioxide layer is doped with phosphorous in the form of approximately 96% SiO.sub.2 and 4% phosphorous (PH.sub.3) by weight, and has high etch selectivity, polish rate and gettering capability as well as excellent step coverage. The present process also improves uniformity and process control because phosphine is a gas and does not have to be vaporized prior to deposition.
摘要:
A semiconductor component and a method for manufacturing the semiconductor component that are suitable for use with low temperature processing. A semiconductor substrate is provided and an optional layer of silicon nitride is formed on the semiconductor substrate using Atomic Layer Deposition (ALD). A layer of dielectric material is formed on the silicon nitride layer using Sub-Atmospheric Chemical Vapor Deposition (SACVD) at a temperature below about 450° C. When the optional layer of silicon nitride is not present, the SACVD dielectric material is formed on the semiconductor substrate. A contact hole having sidewalls is formed through the SACVD dielectric layer, through the silicon nitride layer, and exposes a portion of the semiconductor substrate. A layer of tungsten nitride is formed on the exposed portion of the semiconductor substrate and along the sidewalls of the contact hole. Tungsten is formed on the layer of tungsten nitride.
摘要:
A memory device and a method of making the memory device are provided. A first dielectric layer is formed on a substrate, a floating gate is formed on the first dielectric layer, a second dielectric layer is formed on the floating gate, a control gate is formed on the second dielectric layer, and at least one film, including a conformal film, is formed over a surface of the memory device.
摘要:
A memory device includes a number of memory cells and a dielectric layer formed over the memory cells. The memory device also includes contacts formed in the dielectric layer and spacers formed adjacent the side surfaces of the contacts. The spacers may inhibit leakage currents from the contacts.
摘要:
A film stack includes an interlayer dielectric formed over one or more devices. The film stack further includes a first layer having a high extinction coefficient formed on the interlayer dielectric and a second layer having a low extinction coefficient formed on the first layer. The first and second layers prevent ultraviolet induced damage to the one or more devices while minimizing reflectivity for lithographic processes.
摘要:
A method includes forming a layer of silicon oxynitride (SiON), silicon rich nitride (SiRN) or silicon nitride (Si3N4) over a layer of semiconducting material. The method further includes forming a first layer of anti-reflective material over the layer of SiON, SiRN or Si3N4 and forming a second layer of anti-reflective material over the first layer. The method also includes using the first layer, second layer and layer of SiON, SiRN or Si3N4 as a mask when etching a pattern in the layer of semiconducting material.
摘要翻译:一种方法包括在半导体材料层上形成氮氧化硅(SiON),富硅氮化物(SiRN)或氮化硅(Si3N4)层。 该方法还包括在SiON,SiRN或Si 3 N 4层上形成第一层抗反射材料,并在第一层上形成第二层抗反射材料。 该方法还包括当蚀刻半导体材料层中的图案时,使用第一层,第二层和SiON,SiRN或Si3N4层作为掩模。
摘要:
A contact structure in a semiconductor device includes a layer of dielectric material and a via formed through the dielectric material. The contact structure further includes a spacer formed on sidewalls of the via using atomic layer deposition (ALD) and a metal deposited in the via.
摘要:
The present invention leverages an etch-back process to provide an electrode cap for a polymer memory element. This allows the polymer memory element to be formed within a via embedded in layers formed on a substrate. By utilizing the etch-back process, the present invention provides tiny electrical contacts necessary for the proper functioning of polymer memory devices that utilize the vias. In one instance of the present invention, one or more via openings are formed in a dielectric layer to expose an underlying layer. A polymer layer is then formed within the via on the underlying layer with a top electrode material layer deposited over the polymer layer, filling the remaining portion of the via. Excess portions of the top electrode material are then removed by an etching process to form an electrode cap that provides an electrical contact point for the polymer memory element.
摘要:
A method of manufacturing a memory device includes forming a first dielectric layer over a substrate and forming a charge storage element over the first dielectric layer. The method also includes forming a second dielectric layer over the charge storage element and forming a control gate over the second dielectric layer. The method further includes depositing an interlayer dielectric over the control gate at a high temperature.