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    • 1. 发明授权
    • Process for preparing printed-circuit board
    • 制备印刷电路板的工艺
    • US5236810A
    • 1993-08-17
    • US592245
    • 1990-10-03
    • Toshio KondoShinsuke OnishiNaozumi IwasawaSadaaki Hashimoto
    • Toshio KondoShinsuke OnishiNaozumi IwasawaSadaaki Hashimoto
    • G03F7/26H05K3/06
    • G03F7/265H05K3/064H05K2203/0793H05K2203/135
    • An improved process for preparing a printed-circuit board, which successively comprises (I) a step of forming a positive photo-sensitive resist film onto a circuit board having a conductive film according to the electrodeposition coating process, (II) a step of irradiating a full dose of an actinic ray onto the positive photo-sensitive resist film through a photomask with which the actinic ray is cut off over a conductive circuit-forming area, (III) a step of developing the resulting resist film, (IV) a step of etching away a deposited copper-clad area, and (V) removing a remaining resist film on the conductive circuit-forming area, the improvement further comprising a step of imparting the resist film in the conductive circuit-forming area an increased alkali resistance prior to development so as to obtain the printed-circuit board having high resolution with good reproductivity without being affected by variations of the developing conditions.
    • 一种制备印刷电路板的改进方法,其依次包括(I)根据电沉积涂布工艺在具有导电膜的电路板上形成正光敏抗蚀剂膜的步骤,(II)照射步骤 通过在导电电路形成区域上切割光化射线的光掩模,将正光敏抗蚀剂膜上的全剂量的光化射线,(III)显影所得抗蚀剂膜的步骤,(IV) 蚀刻掉沉积的铜包层区域的步骤,以及(V)去除导电电路形成区域上的剩余抗蚀剂膜,该改进还包括将导电电路形成区域中的抗蚀剂膜赋予增加的耐碱性的步骤 在开发之前,以获得具有高分辨率的印刷电路板,具有良好的再现性,而不受显影条件的变化的影响。
    • 10. 发明授权
    • Input circuit for mode setting
    • 模式设定输入电路
    • US07557604B2
    • 2009-07-07
    • US11119899
    • 2005-05-03
    • Shinsuke OnishiTsuguto Maruko
    • Shinsuke OnishiTsuguto Maruko
    • H03K19/177
    • H03K19/1732
    • An input circuit for mode setting, comprising: a chip selection terminal that is operable both in first and second operation modes; a mode setting terminal that is used to select an operation mode from between the first and second operation modes; a logic holding circuit that holds a logic status at the mode setting terminal; and a control circuit that controls the logic holding circuit in accordance with a signal supplied to the chip selection terminal. Operation modes to be selected may be serial interface mode and parallel interface mode.
    • 一种用于模式设置的输入电路,包括:芯片选择端子,其可在第一和第二操作模式中操作; 用于从第一和第二操作模式之间选择操作模式的模式设置终端; 逻辑保持电路,在模式设定端子保持逻辑状态; 以及根据提供给芯片选择端的信号来控制逻辑保持电路的控制电路。 要选择的操作模式可以是串行接口模式和并行接口模式。