Abstract: Provided are a semiconductor device and a method for manufacturing the same, and a semiconductor package. The semiconductor device includes a die stack and a cap substrate. The die stack includes a first die, second dies stacked on the first die, and a third die stacked on the second dies. The first die includes first through semiconductor vias. Each of the second dies include second through semiconductor vias. The third die includes third through semiconductor vias. The cap substrate is disposed on the third die of the die stack. A sum of a thickness of the third die and a thickness of the cap substrate ranges from about 50 ?m to about 80 ?m.

Abstract: A system for detecting a proximate object includes one or more cameras and one or more illuminators. The proximate object is detected by obtaining image data captured by the one or more cameras, where the image data is captured when at least one of the one or more illuminators are illuminated, determining brightness statistics from the image data, and determining whether the brightness statistics satisfies a predetermined threshold. The proximate object is determined to be detected in accordance with a determination that the brightness statistics satisfies the predetermined threshold.

Abstract: Systems and methods are disclosed to enable performance of a lens distance test in head-mounted displays (HMDs) to determine the distance between a user's eye and a lens of the HMD (e.g. the display lens in a virtual or augmented reality device). In embodiments, the HMD is configured to determine a current pose of the eye based on a series of captured eye images. The pose information is used to determine the distance from the apex of the cornea to a closest point on the lens. If the determined distance is too small or too large, an alert or notification is generated instructing to adjust the HMD or change the light seal to achieve better distancing, in order to reduce the risk of eye injury and/or improve user experience. In embodiments, the lens distance test may be repeated during a user session to reevaluate and/or monitor the lens distance.

Abstract: A method includes performing a plasma activation on a surface of a first package component, removing oxide regions from surfaces of metal pads of the first package component, and performing a pre-bonding to bond the first package component to a second package component.

Abstract: Various implementations disclosed herein include an inconspicuous eye enrollment for user devices through the simultaneous or near-simultaneous eye characteristic tracking and eye model updating. The implementations disclosed herein direct light towards an eye of a user to produce glint reflections and obtain, via one or more sensors, image frames comprising depictions of the glint reflections. Based on those image frames, the implementations disclosed herein track eye characteristics and update an eye model of the eye during a period of time between obtaining a first image frame of the image frames and obtaining a second image frame of the image frames.

Abstract: A checkout amount calculation method includes receiving a plurality of groups of commodity information, generating a first discount quantity according to a preset discount condition and the received commodity information by using a processing unit, receiving a first trigger signal according to the first discount quantity, generating a first group of discount numerical values according to the first trigger signal, calculating a checkout amount according to the first group of discount numerical values and the received commodity information, and displaying the checkout amount, where, each group of commodity information corresponds to a commodity to be purchased, and a quantity of the discount numerical values in the first group of discount numerical values is equal to the first discount quantity.

Abstract: A bearing with antiskid design used in combination with a circular spline to form a harmonic drive, and the circular spline is provided with an inner toothed portion, the bearing includes: an elliptical gear plug, a flexible ball bearing, and a flexible spline. Between the flexible ball bearing and the flexible spline are disposed a first and second antiskid members, and the arrangement of the first and second antiskid members prevents the axial slippage between the flexible ball bearing and the flexible spline, thus improving stability and transmission accuracy of the harmonic drive.

Abstract: A bearing with antiskid design used in combination with a circular spline to form a harmonic drive, and the circular spline is provided with an inner toothed portion, the bearing includes: an elliptical gear plug, a flexible ball bearing, and a flexible spline. Between the flexible ball bearing and the flexible spline are disposed a first and second antiskid members, and the arrangement of the first and second antiskid members prevents the axial slippage between the flexible ball bearing and the flexible spline, thus improving stability and transmission accuracy of the harmonic drive.