Patent classifications
H01L21/28167
Semiconductor device, electronic apparatus, and method of manufacturing semiconductor device
A semiconductor device, an electronic apparatus, and a method of manufacturing a semiconductor device with reduced RTN influence regardless of gate electrode shape are disclosed. In one example, a semiconductor device includes a substrate having an element region and an element separating region, the element region including a source region and a drain region, and a channel region between the source and drain regions. The element separating region is arranged on both sides in a direction orthogonal to the source, channel and drain region arrangement direction. A gate insulating film is provided on the element region of the substrate from one side to another side of the element separating region. A gate electrode is provided on the gate insulating film, and includes an impurity having a different concentration in a boundary region as compared to a central region.
SEMICONDUCTOR DEVICE WITH INTEGRATED MEMORY DEVICES AND MOS DEVICES AND PROCESS OF MAKING THE SAME
A semiconductor device with integrated memory devices and metal-oxide-semiconductor (MOS) devices, including a substrate with a first area and a second area, multiple double-diffused metal-oxide-semiconductor (DMOS) devices on the first area, wherein the double-diffused metal-oxide-semiconductor (DMOS) device includes a field oxide on the substrate, a first gate dielectric layer adjacent to the field oxide, and a first polysilicon gate on the field oxide and the first gate dielectric layer, and multiple memory units on the second area, wherein the memory unit includes an oxide-nitride-oxide (ONO) tri-layer and a second polysilicon gate on the oxide-nitride-oxide (ONO) tri-layer, wherein a top surface of the second polysilicon gate of the memory unit in the second area and a top surface of the first polysilicon gate of the double-diffused metal-oxide-semiconductor (DMOS) in the first area are on the same level.
Coating liquid for forming oxide or oxynitride insulator film, oxide or oxynitride insulator film, field-effect transistor, and method for producing the same
A coating liquid for forming an oxide or oxynitride insulator film, the coating liquid including: A element; at least one selected from the group consisting of B element and C element; and a solvent, wherein the A element is at least one selected from the group consisting of Sc, Y, Ln (lanthanoid), Sb, Bi, and Te, the B element is at least one selected from the group consisting of Ga, Ti, Zr, and Hf, the C element is at least one selected from the group consisting of Group 2 elements in a periodic table, and the solvent includes at least one selected from the group consisting of an organic solvent having a flash point of 21° C. or more but less than 200° C. and water.
Method for fabricating a semiconductor device
A method for fabricating a semiconductor device includes forming a fin extending along a first direction on a semiconductor substrate and forming a sacrificial gate electrode structure extending along a second direction substantially perpendicular to the first direction over the fin. The sacrificial gate electrode structure comprises a sacrificial gate dielectric layer and a sacrificial gate electrode layer disposed over the sacrificial gate dielectric layer. Opposing gate sidewall spacers are formed extending along the second direction, on opposing sides of the sacrificial gate electrode layer. The sacrificial gate electrode layer is removed to form a gate space. Fluorine is implanted into the gate sidewall spacers after removing the gate electrode layer by performing a first fluorine implantation. The sacrificial gate dielectric layer is removed and a high-k gate dielectric layer is formed in the gate space. Fluorine is implanted into the gate sidewall spacers and the fin after forming the high-k gate dielectric layer by performing a second fluorine implantation.
Method for fabricating a semiconductor device
A method for fabricating a semiconductor device includes forming a fin extending along a first direction on a semiconductor substrate and forming a sacrificial gate electrode structure extending along a second direction substantially perpendicular to the first direction over the fin. The sacrificial gate electrode structure comprises a sacrificial gate dielectric layer and a sacrificial gate electrode layer disposed over the sacrificial gate dielectric layer. Opposing gate sidewall spacers are formed extending along the second direction, on opposing sides of the sacrificial gate electrode layer. The sacrificial gate electrode layer is removed to form a gate space. Fluorine is implanted into the gate sidewall spacers after removing the gate electrode layer by performing a first fluorine implantation. The sacrificial gate dielectric layer is removed and a high-k gate dielectric layer is formed in the gate space. Fluorine is implanted into the gate sidewall spacers and the fin after forming the high-k gate dielectric layer by performing a second fluorine implantation.
Production of a 3D circuit with upper level transistor provided with a gate dielectric derived from a substrate transfer
A method of production of a 3D microelectronic device includes assembling a structure comprising a lower level with a component partially formed in a first semiconductor layer with a support provided with a second semiconductor layer in which a transistor channel of an upper level is capable of being produced, the second semiconductor layer being capped with a dielectric material layer capable of forming a gate dielectric, forming a capping layer arranged on the dielectric material layer, and potentially capable of forming a lower gate portion of the transistor, and defining a gate dielectric zone and an active zone of said transistor by etching the dielectric material layer and the second semiconductor layer, the capping layer protecting said dielectric material layer during this etching.
Semiconductor device with integrated memory devices and MOS devices and process of making the same
A method of integrating memory and metal-oxide-semiconductor (MOS) processes is provided, including steps of forming an oxide layer and a nitride layer on a substrate, forming a field oxide in a first area by an oxidation process with the nitride layer as a mask, wherein the oxidation process simultaneously forms a top oxide layer on the nitride layer, removing the top oxide layer, the nitride layer and the oxide layer in the first area, forming a polysilicon layer on the substrate, and patterning the polysilicon layer into MOS units in the first area and memory units in a second area.
Structure and Method for FinFET Device with Buried Sige Oxide
A semiconductor device includes a substrate and a fin feature over the substrate. The fin feature includes a first portion of a first semiconductor material and a second portion of a second semiconductor material disposed over the first portion. The second semiconductor material is different from the first semiconductor material. The semiconductor device further includes a semiconductor oxide feature disposed on sidewalls of the first portion and a gate stack disposed on the fin feature. The gate stack includes an interfacial layer over a top surface and sidewalls of the second portion and a gate dielectric layer over the interfacial layer and sidewalls of the semiconductor oxide feature. A portion of the gate dielectric layer is below the interfacial layer.
Method of Making a Dual-Cavity Pressure Sensor Die
A pressure sensor die especially suitable for high-temperature, high-pressure operating environment and delivering accurate and reliable pressure measurement at low cost. A single crystalline silicon includes a cap, a substrate and a base connected together. A recess formed on the cap creates an upper sealed cavity with the substrate. A silicon oxide layer is formed between the substrate and the cap. A recess formed on the base creates a lower sealed cavity with the substrate. The upper sealed cavity and the lower sealed cavity overlap in their projections. The substrate includes at least two sets of piezoresistive sensing elements located within the overlapping projections, perpendicular to each other, and oriented in different crystallographic directions.
Vertical trench power devices with oxygen inserted Si-layers
A semiconductor device includes: a gate trench extending into a Si substrate; a body region in the Si substrate adjacent the gate trench; a source region in the Si substrate above the body region; a diffusion barrier structure adjacent a sidewall of the gate trench, the diffusion barrier structure including alternating layers of Si and oxygen-doped Si and a Si capping layer on the alternating layers of Si and oxygen-doped Si; and a channel region formed in the Si capping layer and which vertically extends along the sidewall of the gate trench. Corresponding methods of manufacture are also described.