Abstract: A semiconductor device include a nonvolatile memory device, including a first well region formed in a substrate, a tunneling gate insulator formed on the first well region, a floating gate formed on the tunneling gate insulator, a control gate insulator formed on the substrate, a control gate formed on the control gate insulator, and a first source region and a first drain region formed on opposite sides of the control gate, respectively, and a first logic device, including a first logic well region formed in the substrate, a first logic gate insulator formed on the first logic well region, a first logic gate formed on the first logic gate insulator, wherein the first logic gate comprises substantially a same material as a material of the control gate of the nonvolatile memory device.

Abstract: The present invention relates to an artificial marble comprising a base resin; and layer-separated chips containing a matrix resin and additives, all or part of said additives is present in a state forming layered-phase in said matrix resin through phase-separation by a difference of specific gravity between said additives and said matrix resin, and a method for preparing the same. In the present invention, phase-separation (layer separation) of the additives in the chip is induced by adding the additives having specific gravity different from the matrix resin constituting base of the chip to the matrix resin, and if necessary, a position of the chip in the artificial marble is controlled through high specific gravity treatment. Therefore, the present invention may provide an artificial marble having a texture close to a natural rock by embodying various effects such as pearl effect, metallic effect and 3-dimensional effect.

Abstract: Disclosed herein are high specific gravity light reflecting chips capable of exhibiting a depth feeling and glittering, and a method for producing the chips and an artificial marble comprising the chips. The high specific gravity light reflecting chips for an artificial marble consists of a high specific gravity layer, a low specific gravity layer, and a light reflecting layer comprising a light reflective material laminated in this order from the top. Disclosed also are an artificial marble comprising light reflecting transparent chips composed of transparent materials and light reflective materials, and a method producing the artificial marble. The artificial marble comprises light reflecting transparent chips consisting of a transparent layer to be exposed to the outside from the surface of the artificial marble, and a light reflecting layer laminated under thereof.

Abstract: The present invention relates to an artificial marble comprising a base resin; and layer-separated chips containing a matrix resin and additives, all or part of said additives is present in a state forming layered-phase in said matrix resin through phase-separation by a difference of specific gravity between said additives and said matrix resin, and a method for preparing the same. In the present invention, phase-separation (layer separation) of the additives in the chip is induced by adding the additives having specific gravity different from the matrix resin constituting base of the chip to the matrix resin, and if necessary, a position of the chip in the artificial marble is controlled through high specific gravity treatment. Therefore, the present invention may provide an artificial marble having a texture close to a natural rock by embodying various effects such as pearl effect, metallic effect and 3-dimensional effect.