Abstract: The present application provides a method for preparing a memory device.

Abstract: The present application discloses a method for fabricating a semiconductor device with a self-aligned landing pad. The method includes: providing a substrate; forming a dielectric layer with a plug over the substrate; performing an etching process to remove a portion of the dielectric layer to expose a protruding portion of the plug; forming a liner layer covering the dielectric layer and the protruding portion; and performing a thermal process to form a landing pad over the dielectric layer. The landing pad comprises a protruding portion of the plug, a first silicide layer disposed over the protruding portion, and a second silicide layer disposed on a sidewall of the protruding portion.

Abstract: The present application discloses a semiconductor device with a self-aligned landing pad and a method for fabricating the semiconductor device. The semiconductor device includes a substrate, a dielectric layer disposed over the substrate, a plug disposed in the dielectric layer, and a self-aligned landing pad disposed over the dielectric layer. The method includes: providing a substrate; forming a dielectric layer with a plug over the substrate; performing an etching process to remove a portion of the dielectric layer to expose a protruding portion of the plug; forming a liner layer covering the dielectric layer and the protruding portion; and performing a thermal process to form a landing pad over the dielectric layer in a self-aligned manner. The self-aligned landing pad comprises a protruding portion of the plug, a first silicide layer disposed over the protruding portion, and a second silicide layer disposed on a sidewall of the protruding portion.

Abstract: The present application discloses a semiconductor device with an oxidized intervention layer and a method for fabricating the semiconductor device. The semiconductor device includes a substrate, a tunneling insulating layer disposed over the substrate, a floating gate disposed over the tunnel oxide layer, a lateral oxidized intervention layer disposed over the floating gate, and a control gate disposed over the dielectric layer.

Abstract: The present disclosure provide a method of preparing semiconductor device involving planarization processes. The method includes introducing dopants into the exposed portions of the substrate to form doped portions of the substrate; forming a crystalline overlayer on the doped portions of the substrate, wherein the crystalline overlayer has a conductivity lower than that of the doped portions of the substrate. The crystalline overlayer is formed by an epitaxial growth process, the crystalline overlayer is formed as a saddle shape, and the crystalline overlayer has an excess portion protruding from the substrate.

Abstract: The present disclosure provide a semiconductor device and a method for preparing the semiconductor device. The semiconductor device includes a substrate having a memory cell region and a peripheral region, wherein the memory cell region has at least one first shallow trench isolation and the peripheral region has at least one second shallow trench isolation; a plurality of gates in the first shallow trench isolation; a first semiconductor layer in the peripheral region; a first insulating layer covering the substrate in the memory cell region; a crystalline overlayer in the memory cell region and a doped portion of the substrate below the crystalline overlayer; and a second semiconductor layer on a portion of the first insulating layer, wherein a top surface of the first semiconductor layer and a top surface of the second semiconductor layer are coplanar.

Abstract: The present disclosure provide a semiconductor device and a method for preparing the semiconductor device. The semiconductor device includes a substrate having a memory cell region and a peripheral region, wherein the memory cell region has at least one first shallow trench isolation and the peripheral region has at least one second shallow trench isolation; a plurality of gates in the first shallow trench isolation; a first semiconductor layer in the peripheral region; a first insulating layer covering the substrate in the memory cell region; a crystalline overlayer in the memory cell region and a doped portion of the substrate below the crystalline overlayer; and a second semiconductor layer on a portion of the first insulating layer, wherein a top surface of the first semiconductor layer and a top surface of the second semiconductor layer are coplanar.

Abstract: The present disclosure relates to a semiconductor package and a method for manufacturing the same. The semiconductor package includes a first substrate, a blocking dam, and a first contact pad. The first substrate includes a chip-mounting region and an outer connecting region outside the chip-mounting region. The blocking dam is disposed over the first substrate, wherein the blocking dam is disposed between the chip-mounting region and the outer connecting region, the blocking dam surrounds the chip-mounting region and includes a metal layer, and the blocking dam is of a wave shape as seen in a top view of the blocking dam. A first contact pad is disposed over the first substrate, and the first contact pad is within the outer connecting region.

Abstract: A method of fabricating a semiconductor device having a recess channel structure is provided. A first recess is formed in a substrate. A liner and a filling layer are formed in the first recess. A portion of the substrate adjacent to the first recess and a portion of the liner and the filling layer are removed to form trenches. An insulation layer fills the trenches to form isolation structures. The filling layer is removed, using the liner as an etching stop layer, to expose the insulation layer. A portion of the exposed insulation layer is removed to form a second recess having divots adjacent to the sidewalls of the substrate. The liner is removed. A dielectric layer and a gate are formed over the substrate covering the second recess. Source and drain regions are formed in the substrate adjacent to the second recess.

Abstract: A DRAM structure has a substrate, a buried transistor with a fin structure, a trench capacitor, and a surface strap on the surface of the substrate. The surface strap is used to electrically connect a drain region to the trench capacitor.

Abstract: A method of fabricating a semiconductor device having a recess channel structure is provided. A first recess is formed in a substrate. A liner and a filling layer are formed in the first recess. A portion of the substrate adjacent to the first recess and a portion of the liner and the filling layer are removed to form trenches. An insulation layer fills the trenches to form isolation structures. The filling layer is removed, using the liner as an etching stop layer, to expose the insulation layer. A portion of the exposed insulation layer is removed to form a second recess having divots adjacent to the sidewalls of the substrate. The liner is removed. A dielectric layer and a gate are formed over the substrate covering the second recess. Source and drain regions are formed in the substrate adjacent to the second recess.

Abstract: A DRAM structure has a substrate, a buried transistor with a fin structure, a trench capacitor, and a surface strap on the surface of the substrate. The surface strap is used to electrically connect a drain region to the trench capacitor.

Abstract: Method for fabricating a self-aligned gate of a transistor including: forming a plurality of deep trench capacitors in a substrate, concurrently forming a surface strap and a contact pad on a surface of the substrate, wherein a spacing between the surface strap and the contact pad exposes a portion of an active area, filling the spacing with a dielectric layer, forming a photoresist pattern on the substrate, wherein the photoresist has an opening situated directly above the spacing between the surface strap and the contact pad, etching away the dielectric layer and a portion of a shallow trench isolation region through the opening thereby forming an upwardly protruding fin-typed channel structure, forming a gate dielectric layer on the upwardly protruding fin-typed channel structure, and forming a gate on the gate dielectric layer.

Abstract: A DRAM structure includes a substrate, a MOS transistor, a deep trench capacitor, a surface strap positioned on the surface of the substrate and interconnecting a drain of the MOS transistor and an electrode of the deep trench capacitor, wherein the sidewall and the top surface of the surface strap are covered with an insulating layer. A passing gate is positioned on the insulating layer.