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1. 发明申请

WO2012021750A1 MWT ARCHITECTURE FOR THIN SI SOLAR CELLS 审中-公开
标题翻译：微型太阳能电池的MWT结构
公开(公告)号：WO2012021750A1
公开(公告)日：2012-02-16
申请号：PCT/US2011/047486
申请日：2011-08-11
申请人： CRYSTAL SOLAR, INC. , ASTHANA, Ashish , RAVI, Tirunelveli, S. , RAVI, Kramadhati, V. , NAG, Somnath
发明人： ASTHANA, Ashish , RAVI, Tirunelveli, S. , RAVI, Kramadhati, V. , NAG, Somnath
IPC分类号： H01L31/00
CPC分类号： H01L31/02245 , H01L31/02168 , H01L31/03921 , H01L31/068 , H01L31/1804 , H01L31/1892 , Y02E10/547 , Y02P70/521
摘要： Methods of fabricating metal wrap through solar cells and modules for thin silicon solar cells, including epitaxial silicon solar cells, are described. These metal wrap through solar cells have a planar back contact geometry for the base and emitter contacts. Fabrication of a metal wrap through solar cell may comprise: providing a photovoltaic device attached at the emitter side of the device to a solar glass by an encapsulant, the device including busbars on the device emitter; forming vias through the device base and emitter, the vias terminating in the busbars; depositing a conformal dielectric film over the surface of the vias and the back surface of the base; removing portions of the conformal dielectric film from the ends of the vias for exposing the busbars and from field areas of the base; and forming separate electrical contacts to the busbars and the field areas on the back surface of the solar cell. The solar cells may comprise epitaxially deposited silicon and may include an epitaxially deposited back surface field.
摘要翻译：描述了通过太阳能电池制造金属封套的方法和用于薄硅太阳能电池的模块，包括外延硅太阳能电池。这些金属包裹太阳能电池具有用于基极和发射极触点的平面后接触几何形状。通过太阳能电池的金属卷绕的制造可以包括：通过密封剂将设备的发射极侧附接到太阳能玻璃的光伏器件提供，该器件包括在器件发射器上的汇流条; 通过设备基座和发射器形成通孔，终端在母线中的通孔; 在所述通孔的表面和所述基底的后表面上沉积保形电介质膜; 从所述通孔的端部去除所述共形绝缘膜的部分，以暴露所述母线和所述基座的场区域; 并且形成与母线和太阳能电池背面上的场区分开的电接触。太阳能电池可以包括外延沉积的硅并且可以包括外延沉积的背表面场。

2. 发明申请

WO2013020111A1 PHOTOVOLTAIC MODULE FABRICATION WITH THIN SINGLE CRYSTAL EPITAXIAL SILICON DEVICES 审中-公开
标题翻译：具有薄单晶外延硅设备的光电模块制造
公开(公告)号：WO2013020111A1
公开(公告)日：2013-02-07
申请号：PCT/US2012/049648
申请日：2012-08-03
申请人： CRYSTAL SOLAR, INC. , RAVI, Kramadhati, V. , RAVI, Tirunelveli, S. , ASTHANA, Ashish , NAG, Somnath
发明人： RAVI, Kramadhati, V. , RAVI, Tirunelveli, S. , ASTHANA, Ashish , NAG, Somnath
IPC分类号： H01L31/042
CPC分类号： H01L31/0504 , H01L31/02363 , H01L31/048 , H01L31/068 , H01L31/1896 , Y02E10/547
摘要： Photovoltaic modules including a plurality of solar cells bonded to a module back sheet are described herein, wherein each solar cell includes a superstrate bonded to a front side of a photovoltaic device to facilitate handling of very thin photovoltaic devices during fabrication of the module. Modules may also include module front sheets and the solar cells may include bottom sheets. The modules may be made of flexible materials, and may be foldable. Fabrication processes include tabbing photovoltaic devices prior to attaching the individual superstrates.
摘要翻译：这里描述了包括结合到模块背板的多个太阳能电池的光伏模块，其中每个太阳能电池包括结合到光伏器件的前侧的顶板，以便于在模块制造期间处理非常薄的光伏器件。模块还可以包括模块前片，并且太阳能电池可以包括底片。模块可以由柔性材料制成，并且可以是可折叠的。制造工艺包括在连接各个覆盖物之前贴上光伏器件。

3. 发明申请

WO2011031707A1 METHOD FOR MANUFACTURING THIN CRYSTALLINE SOLAR CELLS PRE-ASSEMBLED ON A PANEL 审中-公开
标题翻译：在面板上预组装薄晶体太阳能电池的方法
公开(公告)号：WO2011031707A1
公开(公告)日：2011-03-17
申请号：PCT/US2010/048058
申请日：2010-09-08
申请人： CRYSTAL SOLAR, INC. , RAVI, Tirunelveli, S. , KUMAR, Ananda , RAVI, Kramadhati, V.
发明人： RAVI, Tirunelveli, S. , KUMAR, Ananda , RAVI, Kramadhati, V.
IPC分类号： H01L21/30
CPC分类号： H01L31/1804 , H01L31/0488 , H01L31/0516 , H01L31/0682 , H01L31/1896 , Y02E10/547 , Y02P70/521
摘要： A method for fabricating a photovoltaic (PV) cell panel wherein each of a plurality of silicon donor wafers has a separation layer formed on its upper surface, e.g., porous anodically etched silicon. On each donor wafer, a PV cell is then partially completed including at least part of inter-cell interconnect, after which plural donor wafers are laminated to a backside substrate or frontside. All of the donor wafers are then separated from the partially completed PV cells in an exfoliation process, followed by simultaneous completion of the remaining PV cell structures on PV cells. Finally, a second lamination to a frontside glass or a backside panel completes the PV cell panel. The separated donor wafers may be reused in forming other PV cells. Use of epitaxial deposition to form the layers of the PV cells enables improved dopant distributions and sharper junction profiles for improved PV cell efficiency.
摘要翻译：一种制造光伏（PV）电池板的方法，其中多个硅供体晶片中的每一个具有在其上表面上形成的分离层，例如多孔阳极蚀刻的硅。在每个施主晶片上，PV单元然后部分地完成，包括至少部分单元间互连，之后将多个施主晶片层压到背面基板或前侧。然后将所有供体晶片在剥离过程中与部分完成的PV电池分离，随后在PV电池上同时完成剩余的PV电池结构。最后，向前侧玻璃或后侧面板的第二层压完成PV电池面板。分离的供体晶片可以重新用于形成其它PV电池。使用外延沉积来形成PV电池的层能够改善掺杂剂分布和更清晰的接合曲线以提高PV电池的效率。

4. 发明申请

WO2010062341A2 THIN INTERDIGITATED BACKSIDE CONTACT SOLAR CELL AND MANUFACTURING PROCESS THEREOF 审中-公开
标题翻译：薄型中间背接触式太阳能电池及其制造工艺
公开(公告)号：WO2010062341A2
公开(公告)日：2010-06-03
申请号：PCT/US2009/005852
申请日：2009-10-27
申请人： CRYSTAL SOLAR, INC. , RAVI, Kramadhati, V.
发明人： RAVI, Kramadhati, V.
IPC分类号： H01L31/042
CPC分类号： H01L31/0682 , H01L31/061 , H01L31/1804 , H01L31/1892 , Y02E10/547 , Y02P70/521
摘要： A design and manufacturing method for an interdigitated backside contact photovoltaic (PV) solar cell less than 100 μm thick are disclosed. A porous silicon layer (102) is formed on a wafer substrate (100). Portions of the PV cell are then formed using diffusion, epitaxy and autodoping from the substrate. All backside processing of the solar cell (junctions (201, 204-700), passivation layer (300), metal contacts (990, 991) to the N+ and P+ regions) is performed while the thin epitaxial layer is attached to the porous layer and substrate. After backside processing, the wafer is clamped and exfoliated. The front of the PV cell is completed from the region of the wafer near the exfoliation fracture layer, with subsequent removal of the porous layer, texturing, passivation (1300) and deposition of an antireflective coating (1400). During manufacturing, the cell is always supported by either the bulk wafer or a wafer chuck, with no processing of bare thin PV cells.
摘要翻译：公开了一种用于小于100μm厚的交叉指型背侧接触光伏（PV）太阳能电池的设计和制造方法。多晶硅层（102）形成在晶片衬底（100）上。然后使用来自衬底的扩散，外延和自动掺杂来形成PV电池的部分。当薄外延层附着到多孔层时执行太阳能电池（结（201,204-700），钝化层（300），金属触点（990,991）到N +和P +区的所有背面处理和底物。背面处理后，晶片被夹住并剥落。 PV晶片的正面从剥离断裂层附近的晶片区域完成，随后除去多孔层，纹理化，钝化（1300）和沉积抗反射涂层（1400）。在制造过程中，单元总是由体晶片或晶圆卡盘支撑，而不需要裸露的薄PV电池。

5. 发明申请

WO2010062343A3 THIN TWO SIDED SINGLE CRYSTAL SOLAR CELL AND MANUFACTURING PROCESS THEREOF 审中-公开
公开(公告)号：WO2010062343A3
公开(公告)日：2010-06-03
申请号：PCT/US2009/005855
申请日：2009-10-27
申请人： CRYSTAL SOLAR, INC. , RAVI, Kramadhati, V.
发明人： RAVI, Kramadhati, V.
IPC分类号： H01L31/042
摘要： A design and manufacturing method for a photovoltaic (PV) solar cell less than 100 μm thick are disclosed. A porous silicon layer (102) is formed on a wafer substrate (100). Portions of the PV cell are then formed using diffusion, epitaxy and autodoping from the substrate. All front side processing of the solar cell (junctions (106-200), passivation layer (500), anti-reflective coating (600), and contacts (800) to the N + -type layer) is performed while the thin epitaxial layer is attached to the porous layer and substrate. The wafer is then clamped and exfoliated. The back side of the PV cell is completed from the region of the wafer near the exfoliation fracture layer, with subsequent removal of the porous layer, deposition of passivation (1200), patterning of contacts (1201), deposition of a conductive coating (1400), and contacts (1500) to the P + -type layer. During manufacturing, the cell is always supported by either the bulk wafer or a wafer chuck, with no processing of bare thin PV cells.

6. 发明申请

WO2009140406A2 CRYSTAL GROWTH APPARATUS FOR SOLAR CELL MANUFACTURING 审中-公开
标题翻译：用于太阳能电池制造的晶体生长装置
公开(公告)号：WO2009140406A2
公开(公告)日：2009-11-19
申请号：PCT/US2009/043819
申请日：2009-05-13
申请人： APPLIED MATERIALS, INC. , RAVI, Kramadhati, V. , WALITZKI, Hans, J. , PINGALAY, Deepak
发明人： RAVI, Kramadhati, V. , WALITZKI, Hans, J. , PINGALAY, Deepak
IPC分类号： H01L31/042 , H01L21/20
CPC分类号： H01L31/18 , C30B15/02 , C30B29/06 , Y10T117/1068
摘要： The present invention(s) provide an apparatus for forming a rod, which is also sometimes referred to as an ingot or boule, which can be subsequently diced to form multiple substrates that may be utilized to form a solar cell device. The substrate may be a monocrystalline, or polycrystalline, substrate made by use of a CZ type crystal pulling technology. In one embodiment, the crystal pulling apparatus is used to form a substrate used form a solar cell device. In one embodiment, a feed material is delivered to a crucible using a vibratory feeder assembly and is heated using a novel heater assembly to allow a CZ type crystal pulling process to be performed.
摘要翻译：本发明提供了一种用于形成杆的装置，其也有时被称为锭或坯料，其随后可以被切割以形成可用于形成太阳能电池装置的多个基板。衬底可以是通过使用CZ型晶体拉制技术制成的单晶或多晶衬底。在一个实施例中，晶体拉制装置用于形成由太阳能电池装置使用的基板。在一个实施例中，使用振动给料器组件将进料输送到坩埚，并使用新的加热器组件进行加热，以允许执行CZ型晶体拉制工艺。

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