公开(公告)号：US09040409B2

公开(公告)日：2015-05-26

申请号：US14213316

申请日：2014-03-14

Applicant: Applied Materials, Inc.

Inventor： Prabhat Kumar ,  Michael P. Stewart ,  Kalyan Rapolu ,  Lin Zhang ,  Hari K. Ponnekanti

IPC: H01L21/44 ,  H01L31/0224

CPC classification number: H01L31/022425 ,  H01L31/049 ,  H01L31/0747 ,  H01L2224/73204 ,  H01L2224/83192 ,  H02S40/22 ,  Y02E10/52

Abstract: Embodiments of the present invention are directed to processes for making solar cells by simultaneously co-firing metal layers disposed both on a first and a second surface of a bifacial solar cell substrate. Embodiments of the invention may also provide a method forming a solar cell structure that utilize a reduced amount of a silver paste on a front surface of the solar cell substrate and a patterned aluminum metallization paste on a rear surface of the solar cell substrate to form a rear surface contact structure. Embodiments can be used to form passivated emitter and rear cells (PERC), passivated emitter rear locally diffused solar cells (PERL), passivated emitter, rear totally-diffused (PERT), “iPERC,” Crystalline Reduced-cost Aluminum Fire-Through (CRAFT), pCRAFT, nCRAFT or other high efficiency cell concepts.

Abstract translation: 本发明的实施例涉及通过同时共烧双极太阳能电池基板的第一和第二表面上的金属层来制造太阳能电池的方法。 本发明的实施例还可以提供一种形成太阳能电池结构的方法，该太阳能电池结构在太阳能电池基板的前表面上使用少量的银膏，并且​​在太阳能电池基板的背面上形成图案化的铝金属化浆料，以形成 后表面接触结构。 实施例可用于形成钝化发射器和后电池（PERC），钝化发射器后部局部扩散太阳能电池（PERL），钝化发射极，后部全扩散（PERT），“iPERC”，结晶降低成本的铝穿透 CRAFT），pCRAFT，nCRAFT或其他高效率单元概念。

公开(公告)号：US10215368B2

公开(公告)日：2019-02-26

申请号：US15173231

申请日：2016-06-03

Applicant: Applied Materials, Inc.

Inventor： Michael P. Stewart ,  Hann-Ching Chao ,  Daniel Paul Forster

IPC: G02F1/1343 ,  G02F1/1339 ,  G02F1/137 ,  F21V14/00 ,  F21V9/14 ,  F21V8/00 ,  G02F1/13

Abstract: An adaptive backlight module and a method and system for producing an adaptive backlight module are described herein. In one example, an adaptive backlight module includes a light source, a polarizer, at least one enhancement film disposed between the light source and the polarizer, and a diffuser disposed between the light source and the enhancement film. The diffuser includes a first electrode coupled to a first substrate and a second electrode coupled to a second substrate. A liquid crystal layer is disposed between the first electrode and the second electrode of the diffuser.

公开(公告)号：US20170350576A1

公开(公告)日：2017-12-07

申请号：US15173231

申请日：2016-06-03

Applicant: Applied Materials, Inc.

Inventor： Michael P. Stewart ,  Hann-Ching Chao ,  Daniel Paul Forster

IPC: F21V14/00 ,  G02F1/1343 ,  G02F1/13 ,  F21V9/14 ,  F21V8/00 ,  G02F1/137 ,  G02F1/1339

CPC classification number: F21V14/003 ,  F21V9/14 ,  G02B6/0053 ,  G02B6/0056 ,  G02B6/0065 ,  G02F1/1303 ,  G02F1/1339 ,  G02F1/13439 ,  G02F1/13781 ,  G02F2001/133626

Abstract: An adaptive backlight module and a method and system for producing an adaptive backlight module are described herein. In one example, an adaptive backlight module includes a light source, a polarizer, at least one enhancement film disposed between the light source and the polarizer, and a diffuser disposed between the light source and the enhancement film. The diffuser includes a first electrode coupled to a first substrate and a second electrode coupled to a second substrate. A liquid crystal layer is disposed between the first electrode and the second electrode of the diffuser.

公开(公告)号：US20130102109A1

公开(公告)日：2013-04-25

申请号：US13655170

申请日：2012-10-18

Applicant: Applied Materials, Inc.

Inventor： Michael P. Stewart ,  Hari K. Ponnekanti ,  Prabhat Kumar ,  Jeffrey L. Franklin ,  Kapila P. Wijekoon

IPC: H01L31/18

CPC classification number: H01L31/02167 ,  H01L31/022425 ,  Y02E10/50

Abstract: Embodiments of the present invention generally provide improved processes and apparatus for removing passivation layers from a surface of photovoltaic cells and improving contact resistance in rear point contact photovoltaic cells. In one embodiment, a method of processing a solar cell substrate includes providing a substrate having a passivation layer deposited on a first surface of the substrate. The passivation layer is a layer stack comprising an aluminum oxide and a silicon nitride. The method also includes exposing the first surface of the substrate to an etchant, and heating the etchant to dissolve the aluminum oxide of the passivation layer on the first surface. The method may further include forming a metal containing layer on a second surface of the substrate that is opposite to the first surface.

Abstract translation: 本发明的实施例通常提供用于从光伏电池的表面去除钝化层的改进的工艺和装置，并且改善了后点接触光伏电池中的接触电阻。 在一个实施例中，处理太阳能电池基板的方法包括提供具有沉积在基板的第一表面上的钝化层的基板。 钝化层是包含氧化铝和氮化硅的层叠层。 该方法还包括将衬底的第一表面暴露于蚀刻剂，并加热蚀刻剂以溶解第一表面上钝化层的氧化铝。 该方法还可以包括在与第一表面相对的基板的第二表面上形成含金属层。