Abstract: A device includes a transistor, a backside via, and a pair of sidewall spacers. The transistor includes a gate structure, a channel layer surrounded by the gate structure, and a first source/drain structure and a second source/drain structure connected to the channel layer. The backside via is under and connected to the first source/drain structure and includes a first portion, a second portion between the first portion and the first source/drain structure, and a third portion tapering from the first portion to the second portion in a cross-sectional view. The pair of sidewall spacers are on opposite sidewalls of the second portion of the backside via but not on opposite sidewalls of the first portion of the backside via.

Abstract: The present disclosure discloses a method for recycling all types of lithium batteries. First, the lithium battery waste is acid-leached to obtain a solution containing most of metal ions. After filtering, the solution is separated from the remaining solids, and then the obtained solution is subjected to separate precipitation many times. After separately adjusting the pH value of the solution many times, adding precipitants with a high selectivity ratio, and matching with filtration and separation reaction, all ions in the lithium battery waste are sequentially precipitated in forms of iron phosphate (FePO4), aluminum hydroxide (Al(OH)3), manganese oxide (MnO2), dicobalt trioxide (cobalt oxide, Co2O3), nickel hydroxide (Ni(OH)2), and lithium carbonate (Li2CO3).

Abstract: A method of manufacturing a package structure at least includes the following steps. An encapsulant laterally is formed to encapsulate the die and the plurality of through vias. A plurality of first connectors are formed to electrically connect to first surfaces of the plurality of through vias. A warpage control material is formed over the die, wherein the warpage control material is disposed to cover an entire surface of the die. A protection material is formed over the encapsulant and around the plurality of first connectors and the warpage control material. A coefficient of thermal expansion of the protection material is less than a coefficient of thermal expansion of the encapsulant.

Abstract: A package structure includes a die, an encapsulant laterally encapsulating the die, a warpage control material disposed over the die, and a protection material disposed over the encapsulant and around the warpage control material. A coefficient of thermal expansion of the protection material is less than a coefficient of thermal expansion of the encapsulant.

Abstract: Disclosed is a self-powered formaldehyde sensing device, comprising: a triboelectric material electrode layer including a first substrate and a first electrode layer formed on the first substrate; a triboelectric material dielectric layer including a second substrate, a second electrode layer formed on the second substrate, a dielectric reacting layer formed on the second electrode layer, and a reaction modification layer formed on the dielectric reacting layer to surface-modify the dielectric reacting layer, the reaction modification layer being a phosphomolybdic acid complex (cPMA) layer, the phosphomolybdic acid complex of the phosphomolybdic acid complex layer being obtained by dissolving 4,4?-bipyridine (BPY) in isopropanol (IPA) and then mixing with phosphomolybdic acid (PMA) solution; an elastic spacer; and an external circuit.

Abstract: A method and system for inspecting deviation in dynamic characteristics of a feeding system are provided, and the method includes: exciting the feeding system and detecting vibrations of a subcomponent of a component to be inspected of the feeding system to generate a monitoring excitation signal in a monitoring mode; calculating, by a modal analysis method, monitoring eigenvalues and monitoring eigenvectors of the monitoring excitation signal; determining, by a modal verification method, similarity between the monitoring eigenvalues and standard eigenvalues of a digital twin model and similarity between the monitoring eigenvectors and standard eigenvectors of the digital twin model; determining that the dynamic characteristics of the subcomponent are deviated, when the monitoring eigenvalues and monitoring eigenvectors are not similar to the standard eigenvalues and standard eigenvectors. Therefore, the subcomponent whose dynamic characteristics are deviated can be sensed remotely and precisely.

Abstract: A package structure and method for forming the same are provided. The package structure includes a first through via structure formed in a substrate and a semiconductor die formed below the first through via structure. The package structure further includes a conductive structure formed in a passivation layer over the substrate. The conductive structure includes a first via portion and a second via portion, the first via portion is directly over the first through via structure, and there is no conductive material directly below and in direct contact with the second via portion.

Abstract: A semiconductor device and method for forming the semiconductor device are provided. In some embodiments, a semiconductor substrate comprises a device region. An isolation structure extends laterally in a closed path to demarcate the device region. A first source/drain region and a second source/drain region are in the device region and laterally spaced. A sidewall of the first source/drain region directly contacts the isolation structure at a first isolation structure sidewall, and remaining sidewalls of the first source/drain region are spaced from the isolation structure. A selectively-conductive channel is in the device region, and extends laterally from the first source/drain region to the second source/drain region. A plate comprises a central portion and a first peripheral portion. The central portion overlies the selectively-conductive channel, and the first peripheral portion protrudes from the central portion towards the first isolation structure sidewall.

Abstract: The present disclosure provides a method of forming a semiconductor device including an nFET structure and a pFET structure where each of the nFET and pFET structures include a semiconductor substrate and a gate trench. The method includes depositing an interfacial layer in each gate trench, depositing a first ferroelectric layer over the interfacial layer, removing the first ferroelectric layer from the nFET structure, depositing a metal oxide layer in each gate trench, depositing a second ferroelectric layer over the metal oxide layer, removing the second ferroelectric layer from the pFET structure, and depositing a gate electrode in each gate trench.

Abstract: A computing device obtains, using a camera of the computing device, an image depicting a hand at an initial zoom scale and estimates a pose of the hand depicted in the image. The computing device determines a distance between the hand and the camera of the computing device and adjusts the zoom scale based on the distance between the hand and the camera of the computing device. The computing device renders an augmented reality object on the hand depicted in the image according to the adjusted zoom scale and the pose of the hand depicted in the image.

Abstract: A computing device prompts a user to place the user’s hand including a wrist next to a facial region of the user. The computing device obtains an image depicting the facial region and a wrist of the user. The computing device measures a diameter of an iris in the facial region depicted in the image and measures a width of a wrist of the hand depicted in the image. The computing device estimates an actual wrist width of the user’s hand based on an actual iris diameter, the measured diameter of the iris in the facial region depicted in the image, and the measured width of the wrist of the hand depicted in the image.

Abstract: The present invention provides improved driving methods for four particle electrophoretic displays that improves the performance of such displays when they are deployed in low temperature environments and the displays are required to be updated when positioned vertically (i.e., the driving electric fields are substantially perpendicular to the direction of Earth's gravity). Methods are provided for displaying each of the colors at each pixel, as desired, with minimal interference (contamination) from the other particles.

Abstract: The present invention provides improved driving methods for four particle electrophoretic displays that improves the performance of such displays when they are deployed in low temperature environments and the displays are required to be updated when positioned vertically (i.e., the driving electric fields are substantially perpendicular to the direction of Earth's gravity). Methods are provided for displaying each of the colors at each pixel, as desired, with minimal interference (contamination) from the other particles.

Abstract: The present invention provides four-particle electrophoretic displays with improved driving methods to achieve better color separation between adjacent pixel electrodes. The driving methods improve the color state performance when a first pixel is displaying a mixed state of a first highly-charged particle and a second lower-charged particle of the opposite polarity, while a neighboring pixel is displaying a state of a second highly-charged particle having the opposite polarity to the first highly-charged particle. The particles can be, for example, all reflective or one type of particle can be partially light transmissive.

Abstract: The present invention provides improved driving methods for four particle electrophoretic displays. The driving methods improve the color state performance when a first pixel is displaying a mixed state of a first highly-charged particle and a second lower-charged particle of the opposite polarity, while a neighboring pixel is displaying a state of a second highly-charged particle having the opposite polarity to the first highly-charged particle. The particles can be, for example, all reflective or one type of particle can be partially light transmissive.

Abstract: The present invention provides improved driving methods for four particle electrophoretic displays. The driving methods improve the color state performance when a first pixel is displaying a mixed state of a first highly-charged particle and a second lower-charged particle of the opposite polarity, while a neighboring pixel is displaying a state of a second highly-charged particle having the opposite polarity to the first highly-charged particle. The particles can be, for example, all reflective or one type of particle can be partially light transmissive.

Abstract: An electrophoretic display and a driving method thereof are provided. The electrophoretic display includes a display panel and a driving circuit. The display panel includes an electrophoretic unit and a driving substrate. The electrophoretic unit includes a plurality of electrophoretic particles. The driving substrate is disposed below the electrophoretic unit. The driving circuit is coupled to the driving substrate. The driving circuit sequentially provides a first reset signal and a second reset signal to the driving substrate during a reset period to reset the plurality of electrophoretic particles. The first reset signal sequentially includes a first sub-balanced signal and a first sub-mixed signal. The second reset signal sequentially includes a second sub-balanced signal and a second sub-mixed signal.

Abstract: The present invention provides improved driving methods for four particle electrophoretic displays that improves the performance of such displays when they are deployed in low temperature environments and the displays are required to be updated when positioned vertically (i.e., the driving electric fields are substantially perpendicular to the direction of Earth's gravity). Methods are provided for displaying each of the colors at each pixel, as desired, with minimal interference (contamination) from the other particles.

Abstract: An electro-phoretic display including a display panel and a driving circuit. The display panel is configured to display image frames. The driving circuit is coupled to the display panel. The driving circuit is configured to drive the display panel to display the image frames according to a driving signal. The driving signal includes a first pulse and a second pulse. A driving period of the driving signal includes a first stage, a second stage and a driving stage in sequence. The first pulse is located before the driving stage, and the second pulse is located in the second stage. The pulse width of the first pulse is larger than that of the second pulse. In addition, a driving method of an electro-phoretic display is also provided.

Abstract: An electrophoretic display and a driving method thereof are provided. The electrophoretic display includes a display panel and a driving circuit. The display panel includes an electrophoretic unit and a driving substrate. The electrophoretic unit includes a plurality of electrophoretic particles. The driving substrate is disposed below the electrophoretic unit. The driving circuit is coupled to the driving substrate. The driving circuit sequentially provides a first reset signal and a second reset signal to the driving substrate during a reset period to reset the plurality of electrophoretic particles. The first reset signal sequentially includes a first sub-balanced signal and a first sub-mixed signal. The second reset signal sequentially includes a second sub-balanced signal and a second sub-mixed signal.