Abstract: The present disclosure relates to a novel salt of a 1-sulfonyl pyrrole derivative, and to a novel salt having excellent solubility in vivo, stability, bioavailability, and the like, a preparation method thereof, and a pharmaceutical composition comprising the same.

Abstract: A circuit board according to an embodiment includes a first insulating layer; and a second insulating layer disposed on an upper surface of the first insulating layer, wherein the second insulating layer includes a cavity, and the cavity has a planar shape including a plurality of convex parts convex toward an inner direction of the second insulating layer.

Abstract: A circuit board according to an embodiment includes a first insulating layer; a first pattern layer disposed on an upper surface of the first insulating layer; and a second insulating layer disposed on the upper surface of the first insulating layer and an upper surface of the first pattern layer and including a cavity, wherein the upper surface of the first insulating layer includes a first upper surface corresponding to a lower surface of the cavity, and a second upper surface having a step difference from the first upper surface and not vertically overlapping the lower surface of the cavity, wherein the first pattern layer includes a first pattern part disposed on the first upper surface, and a second pattern part disposed on the second upper surface, and wherein a thickness of the first pattern part is smaller than a thickness of the second pattern part.

Abstract: A gas supply unit includes a base plate, a plurality of gas supply regions protruding from the base plate and arranged on the base plate in a circumferential direction, and a plurality of sidewall trenches alternating with the gas supply regions on the base plate. A distance between opposing surfaces of the base plate increases in a radial direction from a center of the base plate in each of the plurality of sidewall trenches, so each of the plurality of sidewall trenches has a depth that decreases in the radial direction from the center of the base plate.

Abstract: A gas supply unit includes a base plate, a plurality of gas supply regions protruding from the base plate, the plurality of gas supply regions being arranged on the base plate in a circumferential direction, and a plurality of sidewall trenches defined by facing sidewalls of adjacent gas supply regions of the plurality of gas supply regions, wherein each of the plurality of sidewall trenches has a depth that decreases in a radial direction from a center of the base plate.

Abstract: Provided are gas injection apparatuses, thin-film deposition equipment, and methods for manufacturing a semiconductor device.