Abstract: A connection structure of a semiconductor device is provided in the present invention. The connection structure includes an interlayer dielectric, a top metal structure, and a passivation layer. The interlayer dielectric is disposed on a substrate. The top metal structure is disposed on the interlayer dielectric. The top metal structure includes a bottom portion and a top portion disposed on the bottom portion. The bottom portion includes a first sidewall, and the top portion includes a second sidewall. A slope of the first sidewall is larger than a slope of the second sidewall. The passivation layer is conformally disposed on the second sidewall, the first sidewall, and a top surface of the interlayer dielectric.

Abstract: The present invention discloses a coated narrow-band filter having an absorbent material. Two sides of the substrate are respectively an A-side and a B-side, a cut-off layer is coated or screen printed on the A-side, wherein lights having a wavelength within a first band are allowed to pass through the cut-off layer. The substrate is an absorbent layer, or an absorbent layer is provided on the B-side of the substrate. The absorbent layer is made of an absorbent material, lights having a wavelength within a second band are allowed to pass through the absorbent layer. The first band partially overlaps with the second band. For processing convenience, the coated narrow-band filter having an absorbent material is provided at different angles and with small angle of incidence.

Abstract: The present invention discloses a coated narrow-band filter having an absorbent material. Two sides of the substrate are respectively an A-side and a B-side, a cut-off layer is coated or screen printed on the A-side, wherein lights having a wavelength within a first band are allowed to pass through the cut-off layer. The substrate is an absorbent layer, or an absorbent layer is provided on the B-side of the substrate. The absorbent layer is made of an absorbent material, lights having a wavelength within a second band are allowed to pass through the absorbent layer. The first band partially overlaps with the second band. For processing convenience, the coated narrow-band filter having an absorbent material is provided at different angles and with small angle of incidence.