A wiring circuit board includes a metal supporting substrate, an insulating layer, and a conductive layer in this order in a thickness direction. The conductive layer includes at least one terminal portion and a wiring portion extending from the terminal portion. The metal supporting substrate has an opening portion. The opening portion penetrates the metal supporting substrate in the thickness direction and faces the terminal portion through the insulating layer. The opening portion has a first opening peripheral edge on one side in the thickness direction and a second opening peripheral edge on the other side in the thickness direction. In a projected view in the thickness direction, the second opening peripheral edge is disposed outside the first opening peripheral edge and extends along the first opening peripheral edge.

A ceramic circuit board and a method of making are provided. The ceramic circuit board includes a substrate and a composite material layer. The composite material layer is formed on the substrate and comprises metal oxide powders and ceramic powders. The composite material layer has an interface layer which is transformed from the metal oxide powders by reduction and includes comprises zero-valent metal, lower-valent metal oxide and eutectic mixture reduced from the metal oxide powders of the composite material layer.

A ceramic circuit board and a method of making are provided. The ceramic circuit board includes a substrate and a composite material layer. The composite material layer is formed on the substrate and comprises metal oxide powders and ceramic powders. The composite material layer has an interface layer which is transformed from the metal oxide powders by reduction and includes comprises zero-valent metal, lower-valent metal oxide and eutectic mixture reduced from the metal oxide powders of the composite material layer.

Examples of the present disclosure are related to systems and methods for lighting fixtures. More particularly, embodiments disclose lighting fixtures utilizing metal core PCB (MCPCB) for thermal, mechanical, and/or optical controls.

Examples of the present disclosure are related to systems and methods for lighting fixtures. More particularly, embodiments disclose lighting fixtures utilizing metal core PCB (MCPCB) for thermal, mechanical, and/or optical controls.

A circuit board includes a flexible wiring board with a reinforcing member. The flexible wiring board has a first, second and third sections. The reinforcing member is embedded in a cavity in the first section of the wiring board, and is sandwiched by a pair of resin layers provided below and above. A pair of wiring layers are disposed on the pair of the resin layers, respectively. The metal reinforcing member has either a plate shape or a frame shape and is disposed closer to one of the pair of the wiring layers than to another of the pair of the wiring layers in a vertical direction.

Examples of the present disclosure are related to systems and methods for lighting fixtures. More particularly, embodiments disclose directly embedded a smart module with a lighting fixture utilizing metal core PCB (MCPCB).

Examples of the present disclosure are related to systems and methods for lighting fixtures. More particularly, embodiments disclose directly embedded a smart module with a lighting fixture utilizing metal core PCB (MCPCB).

Examples of the present disclosure are related to systems and methods for lighting fixtures. More particularly, embodiments disclose lighting fixtures utilizing metal core PCB (MCPCB) for thermal, mechanical, and/or optical controls.

Examples of the present disclosure are related to systems and methods for lighting fixtures. More particularly, embodiments disclose lighting fixtures utilizing metal core PCB (MCPCB) for thermal, mechanical, and/or optical controls.