Manufacturing method of semiconductor device and designing method of semiconductor device

    公开(公告)号:US06583027B2

    公开(公告)日:2003-06-24

    申请号:US10024157

    申请日:2001-12-18

    IPC分类号: H01L2176

    CPC分类号: H01L21/76229

    摘要: When a top surface area for a plurality of dummy patterns 13 and a width for a plurality of trenches 12 are set on the basis of a ratio (an occupation density of the film for polishing in an adjacent region 10) of a total top surface area for raised sections of the film for polishing to a horizontally projected area of the adjacent region 10, it is possible to suppress dishing and erosion and thereby attain a high planarity when a film for polishing is formed on a semiconductor substrate, wherein dummy patterns 13 partitioned by a plurality of trenches 12 are disposed in an element isolation region 11, and planarization by the CMP is applied thereto.

    Direct fuel injection engine
    3.
    发明授权
    Direct fuel injection engine 失效
    直接燃油喷射发动机

    公开(公告)号:US6044642A

    公开(公告)日:2000-04-04

    申请号:US14975

    申请日:1998-01-28

    摘要: A direct injection engine including, an ignition plug projected into a combustion chamber, an injector for injecting a fuel directly into the combustion chamber, a catalyst provided in an exhaust gas passage for cleaning an exhaust gas, a temperature senisor for detecting a coolant temperature condition of the catalyst, a control unit, for receiving signals from the sensor to determine that the catalyst is lower than an activation temperature when the engine coolant temperature is lower than a predetermined value, for calculating a fuel injection timing and fuel injection amount from the injector to form a fuel rich combustion gas mixture around the ignition plug equivalent to or richer than a combustion as mixture having a theoretical air fuel ratio and a fuel lean combustion as mixture leaner than the combustion as mixture having the theoretical air fuel ratio in an area surrounding said area of the fuel rich combustion gas mixture when it is determined that the temperature of the catalyst is lower than an activation temperature, and, for producing signals to the injector to inject the fuel at the fuel injection timing. The emission performance of the exhaust gas is improved. The warming up of the catalyst as well as the engine is facilitated.

    摘要翻译: 一种直喷式发动机,其特征在于,具备投射在燃烧室内的火花塞,将燃料直接喷入燃烧室的喷射器,设置在废气净化用废气通道内的催化剂,检测冷却剂温度条件的温度传感器 的催化剂,控制单元,用于从发动机接收信号以确定当发动机冷却剂温度低于预定值时催化剂低于活化温度,用于计算来自喷射器的燃料喷射正时和燃料喷射量 以形成燃料混合物周围的燃料气体混合物,该燃烧气体混合物等于或比作为具有理论空气燃料比和燃料贫燃燃烧的混合物的燃烧更为混合物,该混合物的燃烧比燃烧混合物具有理论空燃比在周围区域 所述区域的燃料浓缩燃烧气体混合物,当确定大气的温度时, 天竺葵低于活化温度,并且用于产生喷射器的信号以在燃料喷射正时喷射燃料。 排气的排放性能提高。 促进了催化剂和发动机的升温。

    Non-volatile semiconductor memory cell array
    5.
    发明授权
    Non-volatile semiconductor memory cell array 失效
    非易失性半导体存储单元阵列

    公开(公告)号:US5739566A

    公开(公告)日:1998-04-14

    申请号:US564445

    申请日:1995-11-29

    申请人: Noriyuki Ota

    发明人: Noriyuki Ota

    CPC分类号: H01L29/42324 H01L27/115

    摘要: The present invention provides a floating gate electrode structure in a non-volatile semiconductor memory device. The floating gate electrode comprises a base portion, a contact portion and a head portion. The base portion horizontally extends on a first gate insulation film so as to be positioned over a channel region of a semiconductor substrate. The contact portion upwardly extends from the base portion. The contact portion is provided within a vertical contact hole formed in an inter-layer insulator covering the base portion. The inter-layer insulator encloses bit lines. The bit lines are positioned above the base portion and electrically separated by the inter-layer insulator from both the contact portion and the base portion. The head portion horizontally extends on the inter-layer insulator to be in contact with the contact portion so that the head portion is electrically coupled to the base portion via the contact portion. The head portion is in contact with and underlies a second gate insulation film. The gate insulation film is in contact with and underlies a control electrode. The head portion is electrically separated by the inter-layer insulator from the bit lines. The area of a first interface between the base portion and the first gate insulation film is smaller than the area of a second interlace between the head portion and the second gate insulation film.

    摘要翻译: 本发明提供了一种非易失性半导体存储器件中的浮栅电极结构。 浮栅电极包括基部,接触部和头部。 基部部分水平地延伸在第一栅极绝缘膜上,以便位于半导体衬底的沟道区域之上。 接触部分从基部向上延伸。 接触部分设置在形成在覆盖基部的层间绝缘体中的垂直接触孔内。 层间绝缘体包围位线。 位线位于基部上方,并且由层间绝缘体与接触部分和基部部分电隔离。 头部水平地延伸在层间绝缘体上以与接触部分接触,使得头部经由接触部分电耦合到基部。 头部与第二栅极绝缘膜接触并位于其下方。 栅极绝缘膜与控制电极接触并位于其下方。 头部由层间绝缘体与位线电隔离。 基部和第一栅极绝缘膜之间的第一界面的面积小于头部和第二栅极绝缘膜之间的第二交错的面积。

    Ignition system for internal combustion engine
    6.
    发明授权
    Ignition system for internal combustion engine 失效
    内燃机点火系统

    公开(公告)号:US5465695A

    公开(公告)日:1995-11-14

    申请号:US268875

    申请日:1994-06-30

    摘要: An ignition system for an internal combustion engine has a plurality of peripheral ignition gaps arranged at appropriate separations along the periphery of a combustion chamber and a center ignition gap disposed at a center of the combustion chamber. The ignition gaps are selectively used according to engine operating conditions so that only the peripheral ignition gaps produce sparks when the engine operates under low engine loads and the center ignition gap and the peripheral ignition gaps all produce sparks at once when the engine operates under high engine loads.

    摘要翻译: 一种用于内燃机的点火系统具有多个周边点火间隙,其沿着燃烧室的周边以及设置在燃烧室中心的中心点火间隙适当分隔设置。 点火间隙根据发动机的运行条件选择使用,这样当发动机在低发动机负荷下运行时,只有外围点火间隙产生火花,当发动机在高发动机下工作时,中心点火间隙和外围点火间隙全部产生火花 负载

    METHOD OF STARTING SPARK IGNITION ENGINE WITHOUT USING STARTER MOTOR
    9.
    发明申请
    METHOD OF STARTING SPARK IGNITION ENGINE WITHOUT USING STARTER MOTOR 有权
    不使用起动电机启动火花点火发动机的方法

    公开(公告)号:US20070062476A1

    公开(公告)日:2007-03-22

    申请号:US11533040

    申请日:2006-09-19

    IPC分类号: F02N17/00 F02M1/00

    摘要: There is provided a method of starting a spark ignition engine having multiple cylinders. The method comprises supplying air and fuel for restart into a first cylinder before the engine completely stops, and igniting the mixture of the air and the fuel in the first cylinder in response to an engine start request. In accordance with the method, by supplying air and fuel into the first cylinder before the engine completely stops, the mixture of air and fuel in the first cylinder may be homogeneous at the time of the engine start request. Also, there may be less mixture turbulence and combustion may propagate better within the cylinder. These conditions may reduce the rate of combustion in the first cylinder after a start request is initiated. The slower combustion rate may decrease temperature of the combusted gas while the cylinder wall temperature is relatively low because the engine has stopped. As a result, the slower combustion may reduce heat loss in the first cylinder because of the smaller difference between the temperatures of the combusted gas and the cylinder wall. Consequently, more energy may be directed from the first cylinder to the crankshaft, so that the engine restart becomes more reliable.

    摘要翻译: 提供了一种起动具有多个气缸的火花点火发动机的方法。 该方法包括在发动机完全停止之前将空气和燃料重新启动进入第一气缸,并响应于发动机起动请求点燃第一气缸中的空气和燃料的混合物。 根据该方法,通过在发动机完全停止之前将空气和燃料供应到第一气缸中,在发动机起动请求时,第一气缸中的空气和燃料的混合物可以是均匀的。 此外,可能会有较少的混合物紊流,并且燃烧可能在气缸内更好地传播。 这些条件可以在开始启动请求之后降低第一气缸中的燃烧速率。 由于发动机停止,较慢的燃烧速率可能降低燃烧气体的温度,同时气缸壁温度相对较低。 结果,较慢的燃烧可以减少第一气缸中的热损失,因为燃烧气体和气缸壁的温度之间的差别较小。 因此,更多的能量可以从第一气缸引导到曲轴,使得发动机重起变得更可靠。