公开(公告)号：US20150243803A1

公开(公告)日：2015-08-27

申请号：US14706773

申请日：2015-05-07

Applicant: Richard M. Swanson ,  Marius M. Bunea ,  Michael C. Johnson ,  David D. Smith ,  Yu-Chen Shen ,  Peter J. Cousins ,  Tim Dennis

Inventor： Richard M. Swanson ,  Marius M. Bunea ,  Michael C. Johnson ,  David D. Smith ,  Yu-Chen Shen ,  Peter J. Cousins ,  Tim Dennis

IPC: H01L31/0216 ,  H01L31/18 ,  H01L31/068

CPC classification number: H01L31/0747 ,  H01L31/02167 ,  H01L31/022441 ,  H01L31/02363 ,  H01L31/068 ,  H01L31/0682 ,  H01L31/072 ,  H01L31/0745 ,  H01L31/18 ,  H01L31/1804 ,  Y02E10/547 ,  Y02P70/521

Abstract: Solar cells having emitter regions composed of wide bandgap semiconductor material are described. In an example, a method includes forming, in a process tool having a controlled atmosphere, a thin dielectric layer on a surface of a semiconductor substrate of the solar cell. The semiconductor substrate has a bandgap. Without removing the semiconductor substrate from the controlled atmosphere of the process tool, a semiconductor layer is formed on the thin dielectric layer. The semiconductor layer has a bandgap at least approximately 0.2 electron Volts (eV) above the bandgap of the semiconductor substrate.

Abstract translation: 描述具有由宽带隙半导体材料构成的发射极区域的太阳能电池。 在一个示例中，一种方法包括在具有受控气氛的处理工具中形成在太阳能电池的半导体衬底的表面上的薄介电层。 半导体衬底具有带隙。 在不从处理工具的受控气氛中移除半导体衬底的情况下，在薄介电层上形成半导体层。 半导体层具有比半导体衬底的带隙高至少约0.2电子伏特（eV）的带隙。

公开(公告)号：US08802486B2

公开(公告)日：2014-08-12

申请号：US13372235

申请日：2012-02-13

Applicant: Bo Li ,  Peter J. Cousins ,  David D. Smith

Inventor： Bo Li ,  Peter J. Cousins ,  David D. Smith

IPC: H01L31/18

CPC classification number: H01L31/1864 ,  H01L31/022441 ,  H01L31/0682 ,  H01L31/18 ,  H01L31/1804 ,  Y02E10/547 ,  Y02P70/521

Abstract: Methods of forming emitters for back-contact solar cells are described. In one embodiment, a method includes forming a first solid-state dopant source above a substrate. The first solid-state dopant source includes a plurality of regions separated by gaps. Regions of a second solid-state dopant source are formed above the substrate by printing.

Abstract translation: 描述了形成用于背接触太阳能电池的发射器的方法。 在一个实施例中，一种方法包括在衬底上形成第一固态掺杂剂源。 第一固态掺杂剂源包括由间隙分开的多个区域。 通过印刷在基板的上方形成第二固态掺杂剂源的区域。

公开(公告)号：US20140080251A1

公开(公告)日：2014-03-20

申请号：US14083141

申请日：2013-11-18

Applicant: Peter J. Cousins ,  David D. Smith ,  Seung Bum Rim

Inventor： Peter J. Cousins ,  David D. Smith ,  Seung Bum Rim

IPC: H01L31/0236 ,  H01L31/0368

CPC classification number: H01L31/0747 ,  H01L31/02167 ,  H01L31/02168 ,  H01L31/022425 ,  H01L31/022433 ,  H01L31/02363 ,  H01L31/03682 ,  H01L31/0682 ,  H01L31/1804 ,  H01L31/182 ,  H01L31/202 ,  Y02E10/52 ,  Y02E10/546 ,  Y02E10/547 ,  Y02P70/521

Abstract: A method for manufacturing high efficiency solar cells is disclosed. The method comprises providing a thin dielectric layer and a doped polysilicon layer on the back side of a silicon substrate. Subsequently, a high quality oxide layer and a wide band gap doped semiconductor layer can both be formed on the back and front sides of the silicon substrate. A metallization process to plate metal fingers onto the doped polysilicon layer through contact openings can then be performed. The plated metal fingers can form a first metal gridline. A second metal gridline can be formed by directly plating metal to an emitter region on the back side of the silicon substrate, eliminating the need for contact openings for the second metal gridline. Among the advantages, the method for manufacture provides decreased thermal processes, decreased etching steps, increased efficiency and a simplified procedure for the manufacture of high efficiency solar cells.

Abstract translation: 公开了一种制造高效太阳能电池的方法。 该方法包括在硅衬底的背面上提供薄的电介质层和掺杂的多晶硅层。 随后，可以在硅衬底的背面和前侧上形成高质量的氧化物层和宽带隙掺杂的半导体层。 然后可以执行通过接触开口将金属指板平坦化到掺杂多晶硅层上的金属化工艺。 镀金属指可以形成第一金属网格线。 可以通过将金属直接电镀到硅衬底的背侧上的发射极区域来形成第二金属网格线，从而消除了对第二金属网格线的接触开口的需要。 其中优点在于，制造方法提供了降低的热处理，降低的蚀刻步骤，提高的效率以及用于制造高效率太阳能电池的简化程序。

公开(公告)号：US20090260673A1

公开(公告)日：2009-10-22

申请号：US12477796

申请日：2009-06-03

Applicant: Richard M. Swanson ,  Denis De Ceuster ,  Vikas Desai ,  Douglas H. Rose ,  David D. Smith ,  Neil Kaminar

Inventor： Richard M. Swanson ,  Denis De Ceuster ,  Vikas Desai ,  Douglas H. Rose ,  David D. Smith ,  Neil Kaminar

IPC: H01L31/042

CPC classification number: H02S40/32 ,  H01L31/02167 ,  H01L31/02168 ,  H01L31/022466 ,  H01L31/048 ,  H01L31/049 ,  H01L31/0504 ,  H01L31/0516 ,  H01L31/18 ,  H02J3/383 ,  H02J3/46 ,  H02S30/10 ,  H02S40/36 ,  Y02B10/12 ,  Y02B10/14 ,  Y02E10/52 ,  Y02E10/547 ,  Y10T29/49117

Abstract: In one embodiment, harmful solar cell polarization is prevented or minimized by providing a conductive path that bleeds charge from a front side of a solar cell to the bulk of a wafer. The conductive path may include patterned holes in a dielectric passivation layer, a conductive anti-reflective coating, or layers of conductive material formed on the top or bottom surface of an anti-reflective coating, for example. Harmful solar cell polarization may also be prevented by biasing a region of a solar cell module on the front side of the solar cell.

Abstract translation: 在一个实施例中，通过提供将电荷从太阳能电池的正面向电池片散出的导电路径来防止或最小化有害的太阳能电池极化。 导电路径可以包括例如在抗反射涂层的顶表面或底表面上形成的电介质钝化层中的图案化孔，导电抗反射涂层或导电材料层。 也可以通过偏置太阳能电池正面上的太阳能电池模块的区域来防止有害的太阳能电池极化。

公开(公告)号：US07419307B2

公开(公告)日：2008-09-02

申请号：US11239128

申请日：2005-09-30

Applicant: James Elmer Winzeler ,  Joshua Grant Goddard ,  David D. Smith

Inventor： James Elmer Winzeler ,  Joshua Grant Goddard ,  David D. Smith

IPC: F16C33/46

CPC classification number: F16C19/463 ,  F16C19/48 ,  F16C33/546 ,  F16C2361/61

Abstract: A rotary machine may include an inner component and a first group of cylindrical rollers disposed around the inner component. Each of the cylindrical rollers may have end-faces. The rotary machine may further include an outer component with a first cylindrical inner surface disposed against the cylindrical rollers. Additionally, the rotary machine may include a first bearing cage associated with the first group of cylindrical rollers. At least a portion of the first bearing cage may be disposed inside the first cylindrical inner surface, and the first bearing cage and the first cylindrical inner surface may be associated with one another in such a manner to maintain the first bearing cage substantially concentric to the first cylindrical inner surface. The rotary machine may also include a first axial stop configured to limit axial movement between the outer component and one or more of the cylindrical rollers. Additionally, the rotary machine may include a second axial stop configured to limit axial movement between one or more of the cylindrical rollers and a component of the rotary machine other than the outer component.

Abstract translation: 旋转机器可以包括设置在内部部件周围的内部部件和第一组圆柱形滚子。 每个圆柱滚子可以具有端面。 旋转机器还可以包括外部部件，其具有抵靠圆柱形滚柱设置的第一圆柱形内表面。 另外，旋转机器可以包括与第一组圆柱滚子相关联的第一轴承保持架。 第一轴承保持架的至少一部分可以设置在第一圆柱形内表面的内部，并且第一轴承保持架和第一圆柱形内表面可以彼此相关联，以便使第一轴承保持架基本上与 第一圆柱形内表面。 旋转机器还可以包括构造成限制外部部件和一个或多个圆柱形辊之间的轴向运动的第一轴向止动件。 另外，旋转机器可以包括第二轴向止动件，其构造成限制一个或多个圆柱滚子与除外部部件之外的旋转机器的部件之间的轴向运动。

公开(公告)号：US06735545B2

公开(公告)日：2004-05-11

申请号：US09911182

申请日：2001-07-23

Applicant: Suresh Jayaram ,  David D. Smith

Inventor： Suresh Jayaram ,  David D. Smith

IPC: G01D100

CPC classification number: G05B19/40938 ,  G05B2219/36178 ,  Y02P90/265

Abstract: A method and system for determining a set of desired machine specifications. The method and system includes inputting a set of data to a processor, the data including information relevant to a machine, a machine tool, and a machined part, determining a required set of specifications of the machine as a function of the data, and outputting the required set of specifications to a user.

Abstract translation: 一种用于确定一组所需机器规格的方法和系统。 该方法和系统包括向处理器输入一组数据，该数据包括与机器相关的信息，机床和加工部件，根据数据确定机器的所需规格集合，以及输出 所需的一组规格给用户。

公开(公告)号：US06367548B1

公开(公告)日：2002-04-09

申请号：US09519064

申请日：2000-03-03

Applicant: Donald L. Purvis ,  David D. Cramer ,  David D. Smith ,  Douglas L. Walton

Inventor： Donald L. Purvis ,  David D. Cramer ,  David D. Smith ,  Douglas L. Walton

IPC: E21B4325

CPC classification number: E21B43/14 ,  E21B43/25

Abstract: Methods and compositions for stimulating multiple intervals in wells by diverting well treatment fluids into multiple intervals by alternately displacing diverting agent from the annulus into a subterranean formation and displacing treatment fluid from a tubing string into the subterranean formation.

Abstract translation: 通过将转移剂从环带交替移位到地层中并将处理流体从管柱移位到地下地层中，通过将井处理流体转移到多个间隔来刺激孔中的多个间隔的方法和组合物。

公开(公告)号：US5964156A

公开(公告)日：1999-10-12

申请号：US90070

申请日：1998-06-03

Applicant: David D. Smith ,  Jeremy C. Catt

Inventor： David D. Smith ,  Jeremy C. Catt

IPC: B41J2/44 ,  B41B21/32 ,  G03F7/20 ,  G06K15/00 ,  G06K15/02 ,  H04N1/387 ,  B41C1/10

CPC classification number: G06K15/00 ,  B41B21/32 ,  G03F7/2053 ,  G06K15/02 ,  H04N1/3872 ,  G06K2215/0065 ,  G06K2215/0071

Abstract: A method for automatically processing a job in a prepress printing environment includes the steps of: moving an image receiving substrate from a storage bin to a staging area; moving the image receiving substrate from the staging area into a drum; imaging a predefined area of the image receiving substrate in the drum with a laser while simultaneously moving a next image receiving substrate from the storage bin to the staging area; upon completion of the imaging of the image receiving substrate in the drum, simultaneously (a) moving the image receiving substrate from the drum into a processing area for developing an image on the image receiving substrate, and (b) moving the next image receiving substrate from the staging area into the drum; and finally repeating the above steps until the job is completed. The method optionally includes: offsetting the position of the image receiving substrate to alter the location upon the image receiving substrate where the image will be burned; or offsetting the laser position to alter the location upon the image receiving substrate where the image will be burned. A slug line can also be printed at print time outside of the predefined area, and can include identifying information such as a job name, a print drive job identification, a time stamp, a plane name, a page number and user-defined graphics.

Abstract translation: 一种用于在印前打印环境中自动处理作业的方法包括以下步骤：将图像接收基板从存储箱移动到分段区; 将图像接收基板从分段区域移动到滚筒中; 用激光成像鼓中的图像接收基板的预定区域，同时将下一图像接收基板从存储箱移动到分段区域; 同时（a）将图像接收基板从滚筒移动到用于在图像接收基板上显影图像的处理区域中，以及（b）移动下一个图像接收基板 从舞台进入鼓; 最后重复上述步骤直到作业完成。 该方法可选地包括：抵消图像接收基板的位置以改变图像接收基板上将被烧毁的位置; 或抵消激光位置以改变图像被烧录的图像接收基板上的位置。 也可以在预定义区域之外的打印时间打印细线，并且可以包括识别信息，例如作业名称，打印驱动器作业标识，时间戳，平面名称，页码和用户定义的图形。

公开(公告)号：US20170236966A1

公开(公告)日：2017-08-17

申请号：US15499732

申请日：2017-04-27

Applicant: Matthieu Moors ,  David D. Smith ,  Gabriel Harley ,  Taeseok Kim

Inventor： Matthieu Moors ,  David D. Smith ,  Gabriel Harley ,  Taeseok Kim

IPC: H01L31/061 ,  H01L31/18

CPC classification number: H01L31/061 ,  H01L31/02167 ,  H01L31/022425 ,  H01L31/068 ,  H01L31/1864 ,  Y02E10/547

Abstract: A method of fabricating a solar cell is disclosed. The method can include forming a dielectric region on a surface of a solar cell structure and forming a metal layer on the dielectric layer. The method can also include configuring a laser beam with a particular shape and directing the laser beam with the particular shape on the metal layer, where the particular shape allows a contact to be formed between the metal layer and the solar cell structure.

公开(公告)号：US09716205B2

公开(公告)日：2017-07-25

申请号：US15197616

申请日：2016-06-29

Applicant: Timothy Weidman ,  David D. Smith

Inventor： Timothy Weidman ,  David D. Smith

IPC: H01L31/18 ,  H01L31/0224 ,  H01L31/068 ,  H01L31/0352

CPC classification number: H01L31/182 ,  H01L31/022441 ,  H01L31/035272 ,  H01L31/0682 ,  H01L31/1864 ,  H01L31/1872 ,  H01L31/1876 ,  Y02E10/546 ,  Y02E10/547 ,  Y02P70/521

Abstract: Methods of fabricating solar cell emitter regions using ion implantation, and resulting solar cells, are described. In an example, a method of fabricating alternating N-type and P-type emitter regions of a solar cell involves forming a silicon layer above a substrate. Dopant impurity atoms of a first conductivity type are implanted, through a first shadow mask, in the silicon layer to form first implanted regions and resulting in non-implanted regions of the silicon layer. Dopant impurity atoms of a second, opposite, conductivity type are implanted, through a second shadow mask, in portions of the non-implanted regions of the silicon layer to form second implanted regions and resulting in remaining non-implanted regions of the silicon layer. The remaining non-implanted regions of the silicon layer are removed with a selective etch process, while the first and second implanted regions of the silicon layer are annealed to form doped polycrystalline silicon emitter regions.