Abstract: According to one example, a semiconductor device includes a substrate and a fin stack that includes a plurality of nanostructures, a gate device surrounding each of the nanostructures, and inner spacers along the gate device and between the nanostructures. A width of the inner spacers differs between different layers of the fin stack.

Abstract: A light shielding sheet for a lens is provided, including: a metal substrate, including: a first surface; a second surface opposing the first surface; a first through light hole being in communication with the first surface and having hole radiuses gradually decreasing in a direction from the first surface to the second surface, a ratio of a depth of the first through light hole to a difference between two of the hole radiuses at two ends of the first through light hole being less than or equal to 0.5; and a second through light hole being in communication with the first through light hole and the second surface; and a light extinction film covering the first surface, the second surface, a hole wall of the first through light hole and a portion of a hole wall of the second through light hole of the metal substrate.

Abstract: A light shielding sheet for a lens is provided, including: a metal substrate, including: a first surface; a second surface opposing the first surface; a first through light hole being in communication with the first surface and having hole radiuses gradually decreasing in a direction from the first surface to the second surface, a ratio of a depth of the first through light hole to a difference between two of the hole radiuses at two ends of the first through light hole being less than or equal to 0.5; and a second through light hole being in communication with the first through light hole and the second surface; and a light extinction film covering the first surface, the second surface, a hole wall of the first through light hole and a portion of a hole wall of the second through light hole of the metal substrate.

Abstract: Provided is a vaccine combination against multiple dengue virus serotypes and preparation thereof. The vaccine combination includes a first vaccine and a second vaccine, wherein the first vaccine includes a live-attenuated dengue virus and a live-attenuated chimeric dengue virus, and the second vaccine includes a plurality type of recombinant flagellin and envelope domain III fusion proteins, wherein an envelope domain III of each type of the recombinant flagellin and envelope domain III fusion proteins is derived from a different dengue virus serotype. Also provided is a method of preventing or treating viral infection by multiple dengue virus serotypes in a subject using the vaccine combination, including the steps of administering the first and then the second vaccines at a time interval of about 1-5 weeks.

Abstract: Provided is a vaccine combination against multiple dengue virus serotypes and preparation thereof. The vaccine combination includes a first vaccine and a second vaccine, wherein the first vaccine includes a live-attenuated dengue virus and a live-attenuated chimeric dengue virus, and the second vaccine includes a plurality type of recombinant flagellin and envelope domain III fusion proteins, wherein an envelope domain III of each type of the recombinant flagellin and envelope domain III fusion proteins is derived from a different dengue virus serotype. Also provided is a method of preventing or treating viral infection by multiple dengue virus serotypes in a subject using the vaccine combination, including the steps of administering the first and then the second vaccines at a time interval of about 1-5 weeks.