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    • 3. 发明授权
    • Method of manufacturing semiconductor device
    • 制造半导体器件的方法
    • US07655569B2
    • 2010-02-02
    • US12020761
    • 2008-01-28
    • Yuichi InabaYutaka YamadaShigehiro Morikawa
    • Yuichi InabaYutaka YamadaShigehiro Morikawa
    • H01L21/311
    • H01L27/115H01L29/42324H01L29/66825H01L29/7881
    • The invention prevents a wiring layer in a memory region from being exposed to prevent a change in wire resistance and degradation of reliability. A SiO2 film as an etching stopper film which transmits ultraviolet light is formed on pad electrodes and an interlayer insulation film. Then, the SiO2 film on the pad electrodes is etched selectively and the SiO2 film in an EPROM region is left. A silicon nitride film and a polyimide film are then formed on the SiO2 film and on the pad electrodes where the SiO2 film is removed, as a protection film which does not transmit ultraviolet light. The silicon nitride film and the polyimide film on the pad electrodes and in the EPROM region are then selectively removed by etching. Since the SiO2 film functions as an etching stopper at this time, the interlayer insulation film under the SiO2 film is prevented from being etched and a control gate line metal layer is prevented from being exposed.
    • 本发明防止存储区域中的布线层暴露,以防止电线电阻的变化和可靠性的劣化。 在焊盘电极和层间绝缘膜上形成作为透射紫外光的蚀刻停止膜的SiO 2膜。 然后,选择性地蚀刻焊盘电极上的SiO 2膜,并且留下EPROM区域中的SiO 2膜。 然后在SiO 2膜上除去SiO 2膜的焊盘电极上形成氮化硅膜和聚酰亚胺膜作为不透射紫外线的保护膜。 然后通过蚀刻选择性地去除焊盘电极和EPROM区域中的氮化硅膜和聚酰亚胺膜。 由于SiO 2膜此时用作蚀刻阻挡层,因此可以防止SiO 2膜下的层间绝缘膜被蚀刻,防止控制栅线金属层露出。
    • 10. 发明申请
    • Solid-state imaging device and camera
    • 固态成像装置和相机
    • US20060285005A1
    • 2006-12-21
    • US11452952
    • 2006-06-15
    • Yuichi InabaMasahiro Kasano
    • Yuichi InabaMasahiro Kasano
    • H04N5/225
    • H04N5/335H01L27/14621H01L27/14625H04N9/045
    • A solid-state imaging device is composed of a P-type semiconductor layer, an interlayer insulation film, a multilayer interference filter and condenser lenses which have been successively laminated on an N-type semiconductor layer. A photodiode, in which N-type impurities have been ion-implanted, is formed per pixel in the P-type semiconductor layer on the interlayer insulation film side. The multilayer interference filter has a composition including λ/4 multilayer films and a plurality of spacer layers sandwiched therebetween. The λ/4 multilayer films are composed of alternately laminated monotitanium dioxide layers and monosilicon dioxide layers that have the same optical thickness. The spacer layers have optical thicknesses corresponding to colors of light they are to transmit. A spacer layer is not included in a green region. Instead, two monotitanium dioxide layers, each of which constitutes a λ/4 multilayer film, are adjoined to make a monotitanium dioxide layer with an optical thickness of λ/2.
    • 固态成像装置由已连续层叠在N型半导体层上的P型半导体层,层间绝缘膜,多层干涉滤光片和聚光透镜构成。 在层间绝缘膜侧的P型半导体层中,每像素形​​成已经离子注入了N型杂质的光电二极管。 多层干涉滤光器具有包括λ/ 4多层膜和夹在其间的多个间隔层的组成。 λ/ 4多层膜由具有相同光学厚度的交替层叠的单二氧化钛层和单二氧化硅层构成。 间隔层具有对应于它们要发射的光的颜色的光学厚度。 间隔层不包括在绿色区域中。 相反,两个单一二氧化钛层(其各自构成λ/ 4多层膜)被邻接以制造光学厚度为λ/ 2的单二氧化钛层。