摘要:
In a method of forming a layer, a titanium layer and a titanium nitride layer may be successively formed on a first wafer. By-products adhered to the inside of a chamber during the formation of the titanium nitride layer may be removed from the chamber. Processes of forming the titanium layer, forming the titanium nitride layer, and removing the by-products may be repeated relative to a second wafer.
摘要:
An image processing method and apparatus capable of easily detecting an edge of an object from an input image, in which the edge is detected using one step, without a pre-processing step, and a complicated trigonometric function is not used for gradient detection. The image processing method includes setting a window within an input image, analyzing the window to determine directions of edges of objects within the image included in the window, detecting edge information including the edge directions, and processing and outputting the window using the edge information.
摘要:
A method is provided for registering a mobile router in an Internet Protocol version 6 over Low power Wireless Personal Area Network (6LoWPAN) network. The mobile router detects movement into a wireless network through the reception of a beacon message, and sends a Router Solicitation (RS) message requesting registration in the wireless network to a gateway. The gateway acquires an address of the mobile router from the RS message, stores the acquired address, assigns a new address to be used in the wireless network to the mobile router, and sends a Router Advertisement (RA) message with assigned address information and gateway address information, to the mobile router. The mobile router acquires the assigned address information and the gateway address information from the RA message.
摘要:
Provided is a thin semiconductor package comprising a semiconductor chip and a lead frame, the lead frame including a paddle portion configured for mounting the semiconductor chip in a manner that exposes bonding pads within an aperture formed in a center portion of the lead frame and a peripheral terminal pad portion for establishing external contacts. A plurality of bonding wires are used to establish electrical connection between a lower surface of the paddle part and corresponding bonding pads with intermediate leads providing connection to the terminal pad portions. The semiconductor chip, lead frame and bonding wires may then be encapsulated to form a thin semiconductor package having a thickness substantially equal to that of the terminal pad portions. The thin semiconductor packages may, in turn, be used to form multi-chip stack packages using known good semiconductor chips to form a high-density compound semiconductor packages.
摘要:
Disclosed herein is a method of doping nanosized nickel (Ni) on the surface of carbon nanotubes to improve the hydrogen storage capacity of the carbon nanotubes. The method comprises: sonicating carbon nanotube samples produced by vapor deposition, in sulfuric acid solution, followed by filtration to remove a metal catalyst from the carbon nanotube samples; and doping the carbon nanotube samples in liquid phase solution, followed by drying and reduction, so as to dope nanosized nickel on the surface of the carbon nanotubes.
摘要:
A memory cell (110) has a plurality of floating gates (120L, 120R). The channel region (170) comprises a plurality of sub-regions (220L, 220R) adjacent to the respective floating gates, and a connection region (210) between the floating gates. The connection region has the same conductivity type as the source/drain regions (160) to increase the channel conductivity. Therefore, the floating gates can be brought closer together even though the inter-gate dielectric (144) becomes thick between the floating gates, weakening the control gate's (104) electrical field in the channel.
摘要:
A liquid crystal display device includes an array substrate having reflective and transmissive regions in a pixel region, wherein the array substrate includes a reflective electrode corresponding to the reflective region and a pixel electrode on a first substrate. A color filter substrate defines the reflective region and the transmissive region in the pixel region. The color filter substrate includes a color filter with first and second portions that correspond to the respective transmissive and reflective regions on a second substrate. The thickness of the second portion is less than a thickness of the first portion. The combined thickness of the scatter and the thickness of the second portion is greater than the thickness of the first portion; and a liquid crystal layer between the array and color filter substrates.
摘要:
In methods of manufacturing capacitors, a first metal compound may be deposited on a substrate using first and second source gases. The first and the second source gases may be provided onto the substrate by a first flow rate ratio in which a deposition rate of the first metal compound by surface reaction between the source gases is higher than that by mass transfer between the source gases. A second metal compound may be deposited on the first metal compound and undesired materials may be removed by providing the source gases with a second flow rate ratio different from the first flow rate ratio. Depositing the first and the second metal compounds may be repeated to form a lower electrode. A dielectric layer and an upper electrode may be formed on the lower electrode. Accordingly, permeation of an etching liquid or gas may be reduced during an etching process.
摘要:
Conventional fabrication of sidewall oxide around an ONO-type memory cell stack usually produces Bird's Beak because prior to the fabrication, there is an exposed sidewall of the ONO-type memory cell stack that exposes side parts of a plurality of material layers respectively composed of different materials. Certain materials in the stack such as silicon nitrides are more difficult to oxidize than other materials in the stack such polysilicon. As a result oxidation does not proceed uniformly along the multi-layered height of the sidewall. The present disclosure shows how radical-based fabrication of sidewall dielectric can help to reduce the Bird's Beak formation. More specifically, it is indicated that short-lived oxidizing agents (e.g., atomic oxygen) are able to better oxidize difficult to oxidize materials such as silicon nitride and the it is indicated that the short-lived oxidizing agents alternatively or additionally do not diffuse as deeply through already oxidized layers of the sidewall such as silicon oxide layers. As a result, a more uniform sidewall dielectric can be fabricated with more uniform breakdown voltages along it height.
摘要:
A method and structure to form shallow trench isolation regions without trench oxide grooving is provided. In particular, a method includes a two-step oxide process in which an oxide liner lines the inside surface of a trench and the trench is filled with a bulk oxide layer, preferably using a high density plasma chemical vapor deposition (HDP-CVD) process. The oxide liner and the bulk oxide layer are formed to have similar etch rates. Thus, when etching the oxide liner and the bulk oxide layer between stack structures, a common dielectric top surface is formed that is substantially planar and without grooves.