Abstract: Techniques for persisting user data across secure shell instances are provided. A method includes receiving a first request from a session manager service to establish a connection to a secure shell instance and restore a user block volume with corresponding backup user data. The method may include reserving an empty block volume. The method may also include transmitting a backup data identifier associated with the corresponding backup user data to a backup service and receiving the corresponding backup user data from the backup service. The method may further include providing the corresponding backup user data to the empty block volume to create a restore volume and transmitting a restore volume identifier corresponding to a data center identifier to the session manager service. The method may include receiving a second request to attach the restore volume to a reserved instance, the second request being received from the session manager service.

Abstract: In a method of manufacturing a photo mask for lithography, circuit pattern data are acquired. A pattern density, which is a total pattern area per predetermined area, is calculated from the circuit pattern data. Dummy pattern data for areas having pattern density less than a threshold density are generated. Mask drawing data is generated from the circuit pattern data and the dummy pattern data. By using an electron beam from an electron beam lithography apparatus, patterns are drawn according to the mask drawing data on a resist layer formed on a mask blank substrate. The drawn resist layer is developed using a developing solution. Dummy patterns included in the dummy pattern data are not printed as a photo mask pattern when the resist layer is exposed with the electron beam and is developed.

Abstract: The disclosure provides a method for tree-based machine learning model reduction and an electronic device using the same. A boosting tree model including multiple subtrees is obtained. Subtree importance of each of the subtrees is determined according to feature importance information respectively corresponding to multiple model features of the boosting tree model. At least one continuous tree subset is extracted from the subtrees according to the subtree importance of each of the subtrees. The at least one continuous tree subset includes at least one of the subtrees. At least one reduced boosting tree model of the boosting tree model is obtained according to the at least one continuous tree subset.

Abstract: The disclosure provides a method for tree-based machine learning model reduction and an electronic device using the same. A boosting tree model including multiple subtrees is obtained. Subtree importance of each of the subtrees is determined according to feature importance information respectively corresponding to multiple model features of the boosting tree model. At least one continuous tree subset is extracted from the subtrees according to the subtree importance of each of the subtrees. The at least one continuous tree subset includes at least one of the subtrees. At least one reduced boosting tree model of the boosting tree model is obtained according to the at least one continuous tree subset.

Abstract: A resource allocation method comprises using resources with a used resource quantity of a machine learning system to execute a first experiment which has a first minimum resource demand, receiving an experiment request associated with a target dataset, deciding a second experiment according to the target dataset, deciding a second minimum resource demand of the second experiment, allocating resources with a quantity equal to the second minimum resource demand for an execution of the second experiment when a total resource quantity of the machine learning system meets a sum of the first minimum resource demand and the second minimum resource demand and a difference between the total resource quantity and the used resource quantity meets the second minimum resource demand, determining that the machine learning system has an idle resource, and selectively allocating said the idle resource for at least one of the first experiment and the second experiment.

Abstract: An actuating and sensing module is disclosed and includes a bottom plate, a gas pressure sensor, a thin gas transportation device and a cover plate. The bottom plate includes a pressure relief orifice, a discharging orifice and a communication orifice. The gas pressure sensor is disposed on the bottom plate and seals the communication orifice. The thin gas transportation device is disposed on the bottom plate and seals the pressure relief orifice and the discharging orifice. The cover plate is disposed on the bottom plate and covers the gas pressure sensor and the thin gas-transportation device. The cover plate includes an intake orifice. The thin gas transportation device is driven to inhale gas through the intake orifice, the gas is then discharged through the discharging orifice by the thin gas transportation device, and a pressure change of the gas is sensed by the gas pressure sensor.

Abstract: A transistor includes: a substrate; a first fin and a second fin protruding upwardly from a top surface of the substrate, wherein the first fin and the second fin are concentric, and each of the first fin and the second fin comprises a first straight section, a second straight section in parallel with the first straight section, a first curved section, and a second curved section; a first drain and a second drain; a first source and a second source; a first curved channel and a second curved channel located at the first curved section of the first fin and the first curved section of the second fin, respectively; and a third curved channel and a fourth curved channel located at the second curved section of the first fin and the second curved section of the second fin, respectively.

Abstract: A piezoelectric actuator includes a square suspension plate, an outer frame, a plurality of brackets and a square piezoelectric ceramic plate. The outer frame is arranged around the suspension plate. A second surface of the outer frame and a second surface of the suspension plate are coplanar with each other. Each of the plurality of brackets has two ends, a first end is perpendicular to and connected with the suspension plate, and a second end is perpendicular to and connected with the outer frame for elastically supporting the suspension plate. Each bracket has a length in a range between 1.22 mm and 1.45 mm and a width in a range between 0.2 mm and 0.6 mm. A length of the piezoelectric ceramic plate is not larger than a length of the suspension plate. The piezoelectric ceramic plate is attached on a first surface of the suspension plate.

Abstract: An eye diagram measuring method includes: sampling a compensated input signal according to a reference voltage and a reference clock to obtain a first sampling result; and sampling a to-be-compensated input signal according to a scan voltage and a scan clock to obtain a second sampling result, including: (b1) storing a minimum phase and a voltage level which render the first sampling result identical to the second sampling result; (b2) increasing the voltage level and repeating operation (b1); (b3) decreasing the voltage level and repeating operation (b1); (b4) storing a maximum phase and the voltage level which render the first sampling result identical to the second sampling result; (b5) increasing the voltage level and repeating operation (b4); and (b6) decreasing the voltage level and repeating operation (b4). Voltage levels, maximum phases and minimum phases that are stored are for adjusting the reference voltage and the reference clock.

Abstract: Techniques for persisting user data across secure shell instances are provided. A method includes receiving a first request from a session manager service to establish a connection to a secure shell instance and restore a user block volume with corresponding backup user data. The method may include reserving an empty block volume. The method may also include transmitting a backup data identifier associated with the corresponding backup user data to a backup service and receiving the corresponding backup user data from the backup service. The method may further include providing the corresponding backup user data to the empty block volume to create a restore volume and transmitting a restore volume identifier corresponding to a data center identifier to the session manager service. The method may include receiving a second request to attach the restore volume to a reserved instance, the second request being received from the session manager service.

Abstract: A semiconductor structure is provided. The semiconductor structure includes two circuit regions, two inner seal rings, an outer seal ring, a first redundant region, and an electrical circuit. Each of the inner seal rings surrounding one of the circuit regions. The outer seal ring is disposed around the inner seal rings, and each of the inner seal rings contacts the outer seal ring at different interior corners of the outer seal ring. The first redundant region is located between at least one of the inner seal rings and the outer seal ring. The electrical circuit is formed in the first redundant region and electrically connected to at least one of the circuit regions.

Abstract: The present invention discloses a receive data equalization apparatus. A delay-compensating calculation circuit retrieves training data groups of a training data signal to retrieve total delay amount, generate signed compensation amounts according to a relation among training data contents of training data in each of the training data groups to generate total compensation amount accordingly, and solve equations that correspond total delay amount of the training data groups to the total compensation amount to obtain each of the compensation amounts. A receive data equalization circuit receives the compensation amounts and retrieves a receive data group in a receive data signal, generate signed receive compensation amounts according to a relation among receive data contents of receive data in the receive data group to generate a total receive compensation amount accordingly to perform equalization on a terminal edge of the receive data group according to the total receive compensation amount.

Abstract: An array of dies is formed over a substrate. Each of the dies contains a plurality of functional transistors. A plurality of first seal rings each surround a respective one of the dies in a top view. The first seal rings define a plurality of corner regions that are disposed outside of the first seal rings and between corners of respective subsets of the dies. A plurality of structures is disposed within the corner regions. The structures include test structures, dummy structures, process monitor patterns, alignment marks, or overlay marks. Electrical interconnection elements are disposed between each pair of adjacent dies in the array of dies in the top view. The electrical interconnection elements electrically interconnect the dies in the array with one another. A second seal ring surrounds the array of dies, the first seal rings, and the structures in the top view.

Abstract: A changeable massage device includes a main body, a position limiter, and a control member. The main body includes a combination part and a body part. The position limiter is slidably disposed on the combination member and has a limiting recess. The position limiter moves between an opening and a locking position. The control member is between the main body and the position limiter. The control member has an operation part and a connection part movably connected with the body part. When the position limiter is at the opening position, the operation part is pressed and engaged in the limiting recess, whereby a roller is mounted around or detached from the main body. When the position limiter is pressed to change to the locking position, the operation part leaves the limiting recess to abut against the position limiter, and the roller is fixed to the main body.

Abstract: A die includes: a semiconductor substrate having a front side and an opposing back side; a dielectric structure including a substrate oxide layer disposed on the front side of the semiconductor substrate and interlayer dielectric (ILD) layers disposed on the substrate oxide layer; an interconnect structure disposed in the dielectric structure; a through-silicon via (TSV) structure extending in a vertical direction from the back side of the semiconductor substrate through the front side of the semiconductor substrate, such that a first end of the TSV structure is disposed in the interconnect structure; and a TSV barrier structure including a barrier line that contacts the first end of the TSV structure, and a first seal ring disposed in the substrate oxide layer and that surrounds the TSV structure in a lateral direction perpendicular to the vertical direction.

Abstract: Techniques for persisting user data across secure shell instances are provided. A method includes receiving a first request from a session manager service to establish a connection to a secure shell instance and restore a user block volume with corresponding backup user data. The method may include reserving an empty block volume. The method may also include transmitting a backup data identifier associated with the corresponding backup user data to a backup service and receiving the corresponding backup user data from the backup service. The method may further include providing the corresponding backup user data to the empty block volume to create a restore volume and transmitting a restore volume identifier corresponding to a data center identifier to the session manager service. The method may include receiving a second request to attach the restore volume to a reserved instance, the second request being received from the session manager service.

Abstract: A method for calibrating a data reception window includes: (A) setting a level of a reference voltage by different predetermined values and repeatedly sampling a data signal to obtain multiple first valid data reception windows; (B) establishing a first eye diagram based on the first valid data reception windows; (C) resetting the level of the reference voltage by the predetermined values combined with a first offset and repeatedly sampling the data signal according to the reference voltage to obtain multiple second valid data reception windows and (D) selectively updating the first eye diagram according to the second valid data reception windows. When width of a second valid data reception window is greater than width of a first valid data reception window corresponding to the same predetermined value, the first valid data reception window in the first eye diagram is replaced by the second valid data reception window.

Abstract: A miniature fluid transportation device is provided and includes a convergence component, a valve component, an outlet plate and a plurality of fluid transportation actuation components. The plurality of fluid transportation actuation components are disposed on the convergence component so as to transport the fluid to the convergence component. The convergence component guides the fluid transported by the fluid transportation actuation components to the outlet plate through the valve component. The outlet plate guides the fluid from different transportation actuation components back to the convergence component by a separation guiding block. The fluid is converged in a convergence central slot of the convergence component and is discharged out through a collection channel of the outlet plate. Consequently, the problem of interference owing to the convergence of the fluid transported by different fluid transportation actuation components can be avoided.

Abstract: A gas transportation device is provided and includes an outer housing, a valve body and an actuator. The valve body includes a gas outlet plate, a valve plate and a first plate. The gas outlet plate includes plural outlet apertures, the first plate includes plural first orifices, the valve plate includes plural valve openings, the plural valve openings are misaligned with the plural first orifices and corresponding in position to the plural outlet apertures. The actuator having an actuating component in rectangular shape is stacked and disposed on the valve body. When the actuator is driven, through the structure that the plural first orifices and the plural valve openings are misaligned, the valve body is operated to open a flow path when an airflow is in a forward direction, and the valve body is operated to seal the flow path when the airflow is in a reverse direction.

Abstract: A miniature blower includes a soft sheet, a nozzle plate, a chamber frame, an actuator body, an insulation frame, and a conductive frame. The nozzle plate has a suspension portion, and the soft sheet is disposed on the suspension portion. The chamber frame is disposed on the nozzle plate. The actuator body includes a piezoelectric carrier plate, an adjusting resonance plate, and a piezoelectric plate. The actuator body is disposed on the chamber frame. The insulation frame is disposed on the actuator. The center point of a central hole of the soft sheet and the center point of a hollow hole of the suspension portion are located at the same axis.