摘要:
A semiconductor integrated circuit which can perform reliable relief processing using an electric fuse. The semiconductor integrated circuit includes a fuse wiring, a first electrode pad, a second electrode pad, a pollution-control layer, and a first via hole wiring and a second via hole wiring. The fuse wiring is cut by a current exceeding a predetermined value. A first electrode pad is connected to one side of a fuse wiring, a second electrode pad is connected to the other of a fuse wiring, a pollution-control layer is formed in the upper layer and the lower layer of the fuse wiring via an insulating layer. In the fuse wiring, a second via hole wiring of a pair is formed in the outside of a first via hole wiring so that the first via hole wiring is surrounded.
摘要:
Provided is a semiconductor device having an electric fuse structure which receives the supply of an electric current to be permitted to be cut without damaging portions around the fuse. An electric fuse is electrically connected between an electronic circuit and a redundant circuit as a spare of the electronic circuit. After these circuits are sealed with a resin, the fuse can be cut by receiving the supply of an electric current from the outside. The electric fuse is formed in a fine layer, and is made of a main wiring and a barrier film. The linear expansion coefficient of each of the main wiring and the barrier film is larger than that of each of the insulator layers. The melting point of each of the main wiring and the barrier film is lower than that of each of the insulator layers.
摘要:
The present invention aims at offering the semiconductor integrated circuit which can perform reliable relief processing using an electric fuse.The present invention is provided with a fuse wiring, a first electrode pad, a second electrode pad, a pollution-control layer, and a first via hole wiring and a second via hole wiring. And a fuse wiring is cut by passing beyond a predetermined current value. A first electrode pad is connected to one side of a fuse wiring. A second electrode pad is connected to the other of a fuse wiring. A pollution-control layer is formed in the upper layer and the lower layer of a fuse wiring via an insulating layer. It is formed via an insulating layer to the side surface of a fuse wiring, it connects with a pollution-control layer, and the first via hole wiring of a pair surrounds a fuse wiring. To a fuse wiring, the second via hole wiring of a pair is formed in the outside of a first via hole wiring so that a first via hole wiring may be surrounded.
摘要:
A semiconductor integrated circuit which can perform reliable relief processing using an electric fuse. The semiconductor integrated circuit includes a fuse wiring, a first electrode pad, a second electrode pad, a pollution-control layer, and a first via hole wiring and a second via hole wiring. The fuse wiring is cut by current exceeding a predetermined value. A first electrode pad is connected to one side of a fuse wiring, a second electrode pad is connected to the other of a fuse wiring, a pollution-control layer is formed in the upper layer and the lower layer of the fuse wiring via an insulating layer. In the fuse wiring, second via hole wiring of a pair is formed in the outside of a first via hole wiring so that the first the via hole wiring is surrounded.
摘要:
In fuse program circuits, fuse element FS is implemented using metal interconnect at third or higher layer of multilayer metal interconnect. In each fuse program circuit, program information and fuse select information are sequentially transferred using a scan flip-flops, and fuses are selectively and electrically blown one by one. The fuse program circuit provided with fuse elements that can be programmed even after packaging is implemented with low power consumption and a low occupation area.
摘要:
In fuse program circuits, fuse element FS is implemented using metal interconnect at third or higher layer of multilayer metal interconnect. In each fuse program circuit, program information and fuse select information are sequentially transferred using a scan flip-flops, and fuses are selectively and electrically blown one by one. The fuse program circuit provided with fuse elements that can be programmed even after packaging is implemented with low power consumption and a low occupation area.
摘要:
In fuse program circuits, fuse element FS is implemented using metal interconnect at third or higher layer of multilayer metal interconnect. In each fuse program circuit, program information and fuse select information are sequentially transferred using a scan flip-flops, and fuses are selectively and electrically blown one by one. The fuse program circuit provided with fuse elements that can be programmed even after packaging is implemented with low power consumption and a low occupation area.
摘要:
Provided is a semiconductor device having an electric fuse structure which receives the supply of an electric current to be permitted to be cut without damaging portions around the fuse. An electric fuse is electrically connected between an electronic circuit and a redundant circuit as a spare of the electronic circuit. After these circuits are sealed with a resin, the fuse can be cut by receiving the supply of an electric current from the outside. The electric fuse is formed in a fine layer, and is made of a main wiring and a barrier film. The linear expansion coefficient of each of the main wiring and the barrier film is larger than that of each of the insulator layers. The melting point of each of the main wiring and the barrier film is lower than that of each of the insulator layers.
摘要:
In fuse program circuits, fuse element FS is implemented using metal interconnect at third or higher layer of multilayer metal interconnect. In each fuse program circuit, program information and fuse select information are sequentially transferred using a scan flip-flops, and fuses are selectively and electrically blown one by one. The fuse program circuit provided with fuse elements that can be programmed even after packaging is implemented with low power consumption and a low occupation area.
摘要:
An output signal characteristic of a differential amplifier circuit is improved. When an input data signal becomes ‘Low’, current flowing through a first transistor will decrease and potential at a connection (a node) between a first resistor and a second resistor will increase. This potential is input (negatively fed back) to the gate of a second transistor, and because this gate potential increases, a tail current amount is adjusted in an increasing direction. When the input data signal becomes ‘High’, the current of the first transistor increases and thus the potential at the node decreases. Thus, the gate potential (negative feedback) of the second transistor decreases, and the tail current amount is adjusted in a decreasing direction. Thus, in the rising and falling of an input waveform, the difference in a delay time with respect to the output waveform decreases, respectively.