Abstract: Provided are structures and methods for forming structures with sloping surfaces of a desired profile. An exemplary method includes performing a first etch process to differentially etch a gate material to a recessed surface, wherein the recessed surface includes a first horn at a first edge, a second horn at a second edge, and a valley located between the first horn and the second horn; depositing an etch-retarding layer over the recessed surface, wherein the etch-retarding layer has a central region over the valley and has edge regions over the horns, and wherein the central region of the etch-retarding layer is thicker than the edge regions of the etch-retarding layer; and performing a second etch process to recess the horns to establish the gate material with a desired profile.

Abstract: The present disclosure provides a multi-state one-time programmable (MSOTP) memory circuit including a memory cell and a programming voltage driving circuit. The memory cell includes a MOS storage transistor, a first MOS access transistor and a second MOS access transistor electrically connected to store two bits of data. When the memory cell is in a writing state, the programming voltage driving circuit outputs a writing control potential to the gate of the MOS storage transistor, and when the memory cell is in a reading state, the programming voltage driving circuit outputs a reading control potential to the gate of the MOS storage transistor.

Abstract: An optoelectronic package and a method for producing the optoelectronic package are provided. The optoelectronic package includes a carrier, a photonic device, a first encapsulant and a second encapsulant. The photonic device is disposed on the carrier. The first encapsulant covers the carrier and is disposed around the photonic device. The second encapsulant covers the first encapsulant and the photonic device. The first encapsulant has a topmost position and a bottommost position, and the topmost position is not higher than a surface of the photonic device.

Abstract: The present disclosure provides a respiratory protection device made of soft material comprising folds in zig-zag pattern on the main body and may be adhered to wearer's face by adhesives instead of straps. The respiratory protection device with folds is expandable from flat-fold configuration to open ready-to-use configuration, collapsible from the open ready-to-use configuration to the flat-fold configuration, and flexible to keep adhered to wearer's face when the respiratory protection device is dragged in conjunction with the movement of the wearer's face. The folding structures not only reduce the storage volume but also support the main body of the respiratory protection device to provide large air chamber for breathing comfortably in a completely sealed space. The present disclosure also provides a process of manufacturing the respiratory protection device by folding and fixing barrier layers and applying adhesives on the barrier layers.

Abstract: The present disclosure provides a respiratory protection device made of soft material comprising folds in zig-zag pattern on the main body and may be adhered to wearer's face by adhesives instead of straps. The respiratory protection device with folds is expandable from flat-fold configuration to open ready-to-use configuration, collapsible from the open ready-to-use configuration to the flat-fold configuration, and flexible to keep adhered to wearer's face when the respiratory protection device is dragged in conjunction with the movement of the wearer's face. The folding structures not only reduce the storage volume but also support the main body of the respiratory protection device to provide large air chamber for breathing comfortably in a completely sealed space. The present disclosure also provides a process of manufacturing the respiratory protection device by folding and fixing barrier layers and applying adhesives on the barrier layers.

Abstract: A detachable handle includes a body, a connector, a pivot joint, and a transmission element. The body includes a plurality of I/O ports. The pivot joint connects the body to the connector for switching a rotational angle between the body and the connector. The transmission element embedded in the body electrically connects the I/O ports to the connector. The pivot joint includes a first pivot plate and a second pivot plate pivoted to each other. A terminal of the first pivot plate is fixed to the body, and a terminal of the second pivot plate is fixed to the connector. An electronic device using the detachable handle is also disclosed.

Abstract: A detachable handle includes a body, a connector, a pivot joint, and a transmission element. The body includes a plurality of I/O ports. The pivot joint connects the body to the connector for switching a rotational angle between the body and the connector. The transmission element embedded in the body electrically connects the I/O ports to the connector. The pivot joint includes a first pivot plate and a second pivot plate pivoted to each other. A terminal of the first pivot plate is fixed to the body, and a terminal of the second pivot plate is fixed to the connector. An electronic device using the detachable handle is also disclosed.

Abstract: A package box including an outer box and at least two cushions disposed symmetrically in the outer box is provided. The cushion includes a rectangular bottom plate, two short side plates, a partition plate, a concave structure and a box structure. The short side plates are connected perpendicularly with the short sides of the bottom plate respectively. The partition plate divides the cushion into a first rectangular sub-body and a second rectangular sub-body. The concave structure forms a container space caved in the first rectangular sub-body to contain a first article therein. The box structure on the second rectangular sub-body can be opened or closed to contain a second article in the second rectangular sub-body.

Abstract: A box sealing belt includes two sealing bands, a gap band and two fastening ears. The two sealing bands are substantially in parallel with each other. The gap band is interconnected between the two sealing bands to form two opposing concave slots therebetween. The two fastening ears are respectively disposed at two opposite ends of either one of the two sealing bands.

Abstract: A paper box structure is formed of a paper material, and comprises a bottom plate and two side plates connected to both sides of the bottom plate. Each side plate comprises a top plate connected to one side of the side plate opposite to the bottom plate; and the other two sides of the side plate is connected with a main body fold plates respectively. Each main body fold plate comprises a frame plate having a central opening, a buffer plate; and at least one adjustable fold plate formed along both sides of the central opening. The frame plate is folded to form a U-shaped buffer space together with the top plate, the side plate and the bottom plate. The buffer plate is connected to one side of the frame plate near the side plate, and folded to form a step-like structure.

Abstract: A box sealing belt includes two sealing bands, a gap band and two fastening ears. The two sealing bands are substantially in parallel with each other. The gap band is interconnected between the two sealing bands to form two opposing concave slots therebetween. The two fastening ears are respectively disposed at two opposite ends of either one of the two sealing bands.

Abstract: A paper box structure formed of a paper material includes a bottom plate, a front plate, a rear plate, two side plates, a partition plate and a cover plate. The front plate is connected to one side of the bottom plate to form a front wall. The rear plate is connected to one side of the bottom plate opposite to the front plate to form a buffer space as a rear wall. Two side plates are connected to another two opposite sides of the bottom plate to form buffer spaces as side walls. A frame body is formed from the front plate, rear plate and side plates. The partition plate is disposed within the frame body to divide the frame body into upper and lower portions. The cover plate covers the buffer space formed by the bottom plate and the rear plate, and then the top of the frame body.

Abstract: A paper box structure is formed of a paper material, and comprises a bottom plate and two side plates connected to both sides of the bottom plate. Each side plate comprises a top plate connected to one side of the side plate opposite to the bottom plate; and the other two sides of the side plate is connected with a main body fold plates respectively. Each main body fold plate comprises a frame plate having a central opening, a buffer plate; and at least one adjustable fold plate formed along both sides of the central opening. The frame plate is folded to form a U-shaped buffer space together with the top plate, the side plate and the bottom plate. The buffer plate is connected to one side of the frame plate near the side plate, and folded to form a step-like structure.

Abstract: A package box including a bottom portion, at least one body portion and a cover portion. An empty room is formed in the body portion. The body portions include apertures. A placing room is defined between the aperture and the empty room for placing an article within. The cover portion covers the empty room and the placing room; and has a gap corresponding to the placing room. Thus, any article with a height higher than the package box still can be placed inside the package box.

Abstract: A package box including an outer box and at least two cushions disposed symmetrically in the outer box is provided. The cushion includes a rectangular bottom plate, two short side plates, a partition plate, a concave structure and a box structure. The short side plates are connected perpendicularly with the short sides of the bottom plate respectively. The partition plate divides the cushion into a first rectangular sub-body and a second rectangular sub-body. The concave structure forms a container space caved in the first rectangular sub-body to contain a first article therein. The box structure on the second rectangular sub-body can be opened or closed to contain a second article in the second rectangular sub-body.

Abstract: A package box including an outer box and at least two cushions disposed symmetrically in the outer box is provided. The cushion includes a rectangular bottom plate, two long side plates, two short side plates and at least two container structures. The long side plates are connected perpendicularly with long sides of the bottom plate. The short side plates are connected perpendicularly with short sides of the bottom plate. The container structures are disposed in a region surrounded by the bottom plate, the long side plates and the short side plates. Each container structure has a concave. The concaves join to form a containing space. A plate material of the cushion is also provided.