摘要:
A method and apparatus for regulating the temperature of substrates positioned within a chamber are provided. In one embodiment, a substrate support pin is provided that includes a body having a substrate support region defined at a first end and a mounting region defined at a second end of the body. A mounting feature is formed at the mounting region and is adapted to couple the body to a vacuum chamber body. A passage extends from the mounting region to the support region. An outlet formed through the body and orientated at an angle greater than zero relative to a centerline of the body is p provided to deliver fluids flowing through the passage out the first end of the body. In another embodiment, a chamber includes a pin configured to provide a temperature controlled fluid to an underside of a substrate supported on the pin.
摘要:
A method and apparatus for forming solar cells is provided. In one embodiment, a photovoltaic device includes a antireflection coating layer disposed on a first surface of a substrate, a barrier layer disposed on a second surface of the substrate, a first transparent conductive oxide layer disposed on the barrier layer, a conductive contact layer disposed on the first transparent conductive oxide layer, a first p-i-n junction formed on the conductive contact layer, and a second transparent conductive oxide layer formed on the first p-i-n junction.
摘要:
Methods for sputter depositing a transparent conductive layer are provided in the present invention. The transparent conductive layer may be utilized as a contact layer on a substrate or a back reflector in a photovoltaic device. In one embodiment, the method includes supplying a gas mixture into a processing chamber, sputtering source material from a target disposed in the processing chamber, wherein the target has dopants doped into a base material, wherein the dopants are selected from a group consisting of boron containing materials, titanium containing materials, tantalum containing materials, tungsten containing materials, alloys thereof, or combinations thereof, and reacting the sputtered material with the gas mixture to deposit a transparent conductive layer on a substrate disposed in the processing chamber.
摘要:
The present invention generally relates to a system that can be used to form a photovoltaic device, or solar cell, using processing modules that are adapted to perform one or more steps in the solar cell formation process. The automated solar cell fab is generally an arrangement of automated processing modules and automation equipment that is used to form solar cell devices. The automated solar fab will thus generally comprise a substrate receiving module that is adapted to receive a substrate, one or more absorbing layer deposition cluster tools having at least one processing chamber that is adapted to deposit a silicon-containing layer on a surface of the substrate, one or more back contact deposition chambers, one or more material removal chambers, a solar cell encapsulation device, an autoclave module, an automated junction box attaching module, and one or more quality assurance modules that are adapted to test and qualify the completely formed solar cell device.
摘要:
In a method of depositing a titanium oxide layer on a substrate, a substrate is placed on a support in a process zone of a sputtering chamber. A target containing titanium faces the substrate. A sputtering gas containing an oxygen-containing gas, such as oxygen, and a non-reactive gas, such as argon, is introduced into the process zone. A pulsed DC voltage is applied to the target to sputter titanium from the target. The sputtered titanium combines with oxygen from the oxygen-containing gas to form a titanium oxide layer on the substrate. A multiple layer titanium oxide deposition process may also be implemented.
摘要:
A method and apparatus for forming solar cells is provided. In one embodiment, a photovoltaic device includes a antireflection coating layer disposed on a first surface of a substrate, a barrier layer disposed on a second surface of the substrate, a first transparent conductive oxide layer disposed on the barrier layer, a conductive contact layer disposed on the first transparent conductive oxide layer, a first p-i-n junction formed on the conductive contact layer, and a second transparent conductive oxide layer formed on the first p-i-n junction.
摘要:
Methods for sputter depositing a transparent conductive layer and a conductive contact layer are provided in the present invention. In one embodiment, the method includes forming a transparent conductive layer on a substrate by materials sputtered from a first target disposed in a reactive sputter chamber, and forming a conductive contact layer on the transparent conductive layer by materials sputtered from a second target disposed in the reactive sputter chamber.
摘要:
Methods for sputter depositing a transparent conductive layer are provided in the present invention. The transparent conductive layer may be utilized as a contact layer on a substrate or a back reflector in a photovoltaic device. In one embodiment, the method includes supplying a gas mixture into the processing chamber, sputtering source material from a target disposed in the processing chamber, wherein the target is fabricated from a zinc containing material having an aluminum containing dopant concentration less than 3 percent by weight, and reacting the sputtered material with the gas mixture.
摘要:
A method of depositing a dielectric film, such as tantalum oxide, on a substrate is described. In one example, a substrate is placed in a process zone to face a metal target and a pulsed DC voltage is applied to the target. A sputtering gas comprising a non-reactive component and an oxygen-containing component is introduced to the process zone in a volumetric flow ratio selected to achieve the desired x and y values in the deposited dielectric film, for example, in the deposition of a non-stoichiometric TaxOy film or in the deposition of a tantalum oxide film in which the oxidation state of tantalum is less than +5. The sputtering gas is removed from the process zone by condensing at least some of the non-reactive component on a cooled surface external to the process zone, and exhausting at least some of the oxygen-containing component from the process zone with moving rotors. A multiple layer dielectric film having different stoichiometric ratios in the layers can also be deposited by the instant method.
摘要翻译:描述了在衬底上沉积诸如氧化钽的电介质膜的方法。 在一个示例中,将衬底放置在处理区中以面对金属靶,并且将脉冲DC电压施加到靶。 将包含非反应性组分和含氧组分的溅射气体以选定的体积流量比被引入处理区,以在沉积的介电膜中实现期望的x和y值,例如在非沉积 化学计量的Ta x O y O y膜或在其中钽的氧化态小于+ 5的钽氧化物膜的沉积中。 通过在工艺区域外部的冷却表面上冷凝至少一些非反应性组分,并用移动的转子从工艺区域排出至少一些含氧组分,从工艺区域中除去溅射气体。 也可以通过本方法沉积在层中具有不同化学计量比的多层电介质膜。
摘要:
Embodiments disclosed herein generally relate to a process of depositing a transparent conductive oxide layer over a substrate. The transparent oxide layer is sometimes deposited onto a substrate for later use in a solar cell device. The transparent conductive oxide layer may be deposited by a “cold” sputtering process. In other words, during the sputtering process, a plasma is ignited in the processing chamber which naturally heats the substrate. No additional heat is provided to the substrate during deposition such as from the susceptor. After the transparent conductive oxide layer is deposited, the substrate may be annealed and etched, in either order, to texture the transparent conductive oxide layer. In order to tailor the shape of the texturing, different wet etch chemistries may be utilized. The different etch chemistries may be used to shape the surface of the transparent conductive oxide and the etch rate.