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    • 1. 发明授权
    • Integrated two-terminal fuse-antifuse and fuse and integrated
two-terminal fuse-antifuse structures incorporating an air gap
    • US5903041A
    • 1999-05-11
    • US263920
    • 1994-06-21
    • Michael David La FleurRalph WhittenChun-Mai LiuAlan E. ComerScott GrahamYu-Lin Lee
    • Michael David La FleurRalph WhittenChun-Mai LiuAlan E. ComerScott GrahamYu-Lin Lee
    • H01L21/768H01L23/525H01L29/04H01L27/10H01L29/00
    • H01L21/7682H01L23/5252H01L23/5256H01L2924/0002
    • A two-terminal fuse-antifuse structure comprises a horizontal B-fuse portion and a vertical A-fuse portion disposed between two metallization layers of an integrated circuit device. The two-terminal fuse-antifuse can be programmed with a relatively high current applied across the two terminals to blow the B-fuse, or with a high voltage applied across the two terminals to program the A-fuse. Such a device, connected between two circuit nodes, initially does not provide an electrical connection between the two circuit nodes. It may then be programmed with a relatively high voltage to blow the A-fuse, causing it to conduct between the two circuit nodes. Then, upon application of a relatively high current between the two circuit nodes, the B-fuse will blow, making the device permanently non-conductive. An improvement permitting higher current programming of B-fuses either alone or as part of Ab-fuse structures, incorporates an air gap which provides a pocket of space either above, below or both above and below the B-fuse portion of the device. This air gap provides a place for material disrupted (melted or vaporized) by a fuse or Ab-fuse programming event to go, eliminates direct contact between the dielectric material and the fuse-portion of the device, and also thermally isolates the melted fuse material from the dielectric, thus reducing the physical stress within the dielectric itself associated with high current programming and avoiding undesired collateral damage normally associated with high current programming events. The creation of an air gap around the fuse neck is accomplished by the removal of a sacrificial layer of an oxidizable polymer material in a gaseous and/or plasma state through a small hole in the dielectric referred to as a sacrificial via opening or just "sacrificial via". After removal of the oxidizable polymer material through the sacrificial via, the sacrificial via is sealed with a passivation layer formed of a polymeric material to prevent damage to the underlying structure. The integration of the air gap and sacrificial via sealing into the current fuse process manufacturing requires the following additional processing steps: (1) Air gap definition; (2) Air gap evacuation with oxygen plasma; (3) the application of the sealing polymer; and (4) the curing of the sealing polymer.
    • 8. 发明授权
    • Hybrid constant current LED lamp
    • 混合恒流LED灯
    • US09241378B2
    • 2016-01-19
    • US14205782
    • 2014-03-12
    • Yu-Lin Lee
    • Yu-Lin LeeKuo- Chung Huang
    • H05B37/02H05B33/08
    • H05B33/0815H05B37/02
    • The present invention relates to a hybrid constant current LED lamp. The LED lamp includes a rectifier unit, a filter circuit, a switching mode power supply, at least one main LED and a subsidiary LED. The main LED is electrically connected in series to the output terminal of the rectifier unit and the input port of the primary-side circuit of the switching mode power supply. The subsidiary LED is connected to the secondary-side circuit. The invention not only provides circuit architecture capable of providing a constant current, but also improves the power efficiency of the lamp.
    • 本发明涉及混合型恒流LED灯。 LED灯包括整流器单元,滤波器电路,开关模式电源,至少一个主LED和辅助LED。 主LED与整流器单元的输出端子和开关模式电源的初级侧电路的输入端口串联电连接。 辅助LED连接到次级侧电路。 本发明不仅提供能够提供恒定电流的电路架构,而且还提高了灯的功率效率。