Abstract: An online system determines a polygon representing a physical location associated with a content item and indexes edges of the polygon based on their positions along an axis of a map. The index is used to retrieve edges spanning a point on the axis representing a location of a client device associated with an online system user. The online system compares the positions of the point and retrieved edges on an axis perpendicular to the axis and determines whether the user is at the physical location based on the comparison. If the user is not at the physical location, a boundary surrounding the point is compared with boundaries surrounding the indexed edges to determine whether the user is within a threshold distance of the physical location. If the user is at or within the threshold distance of the physical location, the user is determined eligible to receive the content item.

Abstract: Methods and apparatus for use in the manufacture of a display element. Some embodiments include a method for selective pick up of a subset of a plurality of electronic devices adhered to a handle layer. The method comprises modifying a level of adhesion between one or more electronic devices of the plurality of electronic devices adhered to the handle layer, such that the subset of the plurality of electronic devices has a level of adhesion to the handle layer that is less than a force applied by a pick up tool, PUT. This enables selective pick up of the subset of the plurality of electronic devices from the handle layer by the PUT.

Abstract: Embodiments relate to transferring dies or other electronic components from a carrier substrate to a target substrate of a device as part of chip assembly for the device. Bonding material is applied to selected dies on a carrier substrate by direct boning, or to corresponding die transfer locations on a target substrate. The carrier substrate is then brought into contact with the target substrate to transfer each of the selected dies to the carrier substrate. Dies can also be directly bonded to the target substrate even in the presence of other die in situ (e.g., from a previous bonding cycle), hence, enables more than one direct bond cycle to be carried out for a target substrate. As such, multi-color (RGB) display elements can be assembled in stages (e.g., separate bonding cycles) in a flexible manner to provide redundancy or to replace inoperative LED dies.

Abstract: Methods and apparatus for use in the manufacture of a display element. Some embodiments include a method for selective pick up of a subset of a plurality of electronic devices adhered to a handle layer. The method comprises modifying a level of adhesion between one or more electronic devices of the plurality of electronic devices adhered to the handle layer, such that the subset of the plurality of electronic devices has a level of adhesion to the handle layer that is less than a force applied by a pick up tool, PUT. This enables selective pick up of the subset of the plurality of electronic devices from the handle layer by the PUT.

Abstract: An online system receives information from client devices describing locations of the client devices and associates locations of various client devices with various online system users. The online system identifies a group of users who were within a threshold distance of a physical location associated with content maintained by the online system, retrieves attributes maintained by the online system in association with users of the group, and generates data describing characteristics of the attributes. Based on the generated data, the online system generates a report describing the group of users and visits by the group of users to a geographic area within the threshold distance of the physical location. The report is provided to a user associated with the content or with the physical location to provide information about users associated with locations within the threshold distance of the physical location.

Abstract: Embodiments relate to placing of semiconductor devices on a target substrate using a pick and place head (PPH) having a cross-section of a polygon shape and pick-up surfaces. The pick-up surfaces of the PPH are aligned with a carrier substrate mounted with the semiconductor devices, which may be light emitting diodes (LEDs). The PPH is moved toward one or more first semiconductor devices on the carrier substrate to pick up the one or more first semiconductor devices with a first pick-up surface of the PPH. The PPH is rotated to pick up one or more semiconductor devices dies with a second pick-up surface of the PPH. The one or more first semiconductor devices attached to the first pick-up surface and the one or more second semiconductor devices attached to the second pick-up surface are placed on a target substrate.

Abstract: An online system receives a content unit identifying a set of content items each associated with a physical location. Different content items of the set include different content associated with different physical locations. When the online system selects content from the content unit for presentation to a user, the online system selects a content item of the set identified by the content unit based on physical locations associated with the content items and characteristics of the user maintained by the online system. For example, the online system selects a content item of the set associated with a physical location having a minimum distance to a location associated with the user by the online system. Rules associate interactions by the user with content from the content unit with an object associated with the content unit or with another object associated with a selected content item of the identified set.

Abstract: Methods and apparatus for use in the manufacture of a display element. Some embodiments include a method for selective pick up of a subset of a plurality of electronic devices adhered to a handle layer. The method comprises modifying a level of adhesion between one or more electronic devices of the plurality of electronic devices adhered to the handle layer, such that the subset of the plurality of electronic devices has a level of adhesion to the handle layer that is less than a force applied by a pick up tool, PUT. This enables selective pick up of the subset of the plurality of electronic devices from the handle layer by the PUT.

Abstract: Methods and apparatus for use in the manufacture of a display device including pixels. Each pixel includes a plurality of sub-pixels, each sub-pixel configured to provide light of a given wavelength. The method may include: performing, using a pick up tool (PUT), a first placement cycle comprising picking up first light emitting diode (LED) dies, and placing a first LED die on a substrate of the display device at a location corresponding to a sub-pixel the display device. The method further includes performing one or more subsequent placement cycles comprising picking up a second LED die, and placing the second LED die on the substrate of the display device at a second location corresponding to the sub-pixel of the display device. Multiple first and second LED dies may be picked and placed during each placement cycle to populate each pixel of the display device to provide redundancy of LED dies at each sub-pixel.

Abstract: An online system receives a description of a physical location associated with a content item and a threshold distance of the physical location. To identify users eligible to be presented with the content item, the online system divides a geographic map of the physical location associated with the content item into a plurality of geo-tiles each representing a portion of the map. The online system computes and stores values describing portions of a geographic region represented by certain geo-tiles and associates the geographic region with the physical location if the stored values equal or exceed a threshold value. If the geographic region is associated with the physical location, users associated with the geographic region are identified by the online system as eligible to receive the content item.

Abstract: Systems, methods and devices described herein enable acquiring, selecting and sharing content elements, extracted from media content playing on a first device, using one or more second devices. For example, while a video stream is playing on a first client device, a second client device acquires and sends content information derived from the video stream to a server system. The server system identifies the video stream, generates a set of instructions and extracts content elements associated with the media content. The content elements may include, without limitation, individually selectable portions of text, images, suggested ratings, video clips, audio clips, etc. In some implementations, the set of instructions includes instructions to display the one or more content items using non-intersecting overlay regions that enable each respective content element to be individually selectable.