Abstract: Methods of forming contacts for back-contact solar cells are described. In one embodiment, a method includes forming a thin dielectric layer on a substrate, forming a polysilicon layer on the thin dielectric layer, forming and patterning a solid-state p-type dopant source on the polysilicon layer, forming an n-type dopant source layer over exposed regions of the polysilicon layer and over a plurality of regions of the solid-state p-type dopant source, and heating the substrate to provide a plurality of n-type doped polysilicon regions among a plurality of p-type doped polysilicon regions.

Abstract: A contextual keyboard allows users to bring in information not normally found on a keyboard, as though that information had been typed in afresh. It also allows users to take information entered on the keyboard, or simply available on the screen, or implicit in information on the screen, and perform actions on it, such as calling a phone number, entering contact or calendar information into a local database on the device, or using the information as search terms in an online query. The central novelty of this invention is moving the functionality into the keyboard layer, so as to be universally accessible on the device.

Abstract: A system and method for performing actions via a keyboard application of a computing device is described. In some examples, a contextual keyboard facilitates the entry of text and the performance of actions across applications supported by a device. For example, the contextual keyboard may receive a word macro and/or a gesture, and determine that the received word macro and/or gesture is a command to perform one or more actions. Example actions to be performed include searching for information, storing information, posting information, sending information, enhancing information, and so on.

Abstract: A system and method for commanding a keyboard application based on a gesture received at a displayed keyboard is described. In some examples, the system receives a gesture, such as a shape-based or key-based gesture, identifies a command associated with the received gesture, and performs a function (e.g. changes mode of the keyboard, hides the keyboard, and so on), based on the identified command.

Abstract: Methods of fabricating emitter regions of solar cells are described. Methods of forming layers on substrates of solar cells, and the resulting solar cells, are also described.

Abstract: Methods of fabricating solar cells with tunnel dielectric layers are described. Solar cells with tunnel dielectric layers are also described.

Abstract: An ordering of advertisements requested by an ad consumer is based on scores generated for the ads. In each case, a score may be a function of at least one performance parameter associated with the ad and/or a price parameter associated with the ad. The score may also be a function of advertiser information. Alternatively, the score may be modified based on advertiser information. Ads may be filtered based on advertiser information.

Abstract: In one embodiment, active diffusion junctions of a solar cell are formed by diffusing dopants from dopant sources selectively deposited on the back side of a wafer. The dopant sources may be selectively deposited using a printing method, for example. Multiple dopant sources may be employed to form active diffusion regions of varying doping levels. For example, three or four active diffusion regions may be fabricated to optimize the silicon/dielectric, silicon/metal, or both interfaces of a solar cell. The front side of the wafer may be textured prior to forming the dopant sources using a texturing process that minimizes removal of wafer material. Openings to allow metal gridlines to be connected to the active diffusion junctions may be formed using a self-aligned contact opening etch process to minimize the effects of misalignments.