Redundancy device set used for error correction and modification and method for repairing circuit defect with redundancy device set
A technology of redundancy and components, applied in CAD circuit design, instrumentation, electrical digital data processing, etc., can solve the problem of scrapping the entire circuit board, achieve the effects of reducing scrapping, flexible layout, and improving repairability
Inactive Publication Date: 2016-06-15
中山芯达电子科技有限公司
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Problems solved by technology
[0004] Based on the problems mentioned in the background technology, the present invention proposes a method for error correction and modification of a redundant device group and repairing circuit defects by using the redundant device group, so as to solve the problem that the whole circuit board is scrapped due to improper repair in the circuit design The specific technical content of the problem is as follows:
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[0012] The scheme of this application is further described in conjunction with the accompanying drawings as follows:
[0013] like figure 1 As shown, a redundant device group for error correction modification, which includes several basic units composed of an NMOS transistor and a PMOS transistor, the source of the PMOS transistor is connected to the chip VSS, and its drain is suspended or connected to The source of the NMOS transistor, the drain of the NMOS transistor are connected to the GND of the chip, and the gate of the PMOS transistor is connected to the gate of the NMOS transistor; the number of the basic units is more than two.
[0014] A method for repairing circuit defects by using the above-mentioned redundant device group, which specifically includes the following steps:
[0015] 1) After the circuit design is completed, set a certain number of redundant device group basic units according to the area of the remaining space of the circuit board;
[0016] 2) If ...
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The invention provides a redundancy device set used for error correction and modification. The redundancy device set is characterized by comprising a plurality of basic units, wherein each basic unit is composed of an NMOS tube and a PMOS tube, the source electrode of the PMOS tube is connected with a chip VSS, the drain electrode of the PMOS tube is suspended or connected with the source electrode of the corresponding NMOS tube, the drain electrode of the NMOS tube is connected with the GND of the corresponding chip, and the grid electrode of the PMOS tube is connected with the grid electrode of the corresponding NMOS tube; the number of the basic units is 2 or larger than 2. The invention further provides a method for repairing a circuit defect with the redundancy device set to solve the problem that a whole circuit board is scrapped due to improper repair in circuit design.
Description
technical field [0001] The invention belongs to the field of microelectronic circuit design, and in particular relates to a method for correcting errors and modifying a redundant device group and using the redundant device group to repair circuit defects. Background technique [0002] After the circuit board is designed, we often encounter some defects that were not considered or expected when laying out the circuit. If these defects cannot be repaired, they will directly lead to the scrapping of the circuit board. In order to avoid this situation, among the existing solutions , will implant logic gate devices including AND gates, NOT gates, or gates, etc. on the vacant positions of the circuit board, and repair them by designing logic gate circuits when circuit defects occur. However, the size of different logic gate devices is different, and the area of the vacant position of the circuit board is not fixed, so it is impossible to lay out all the logic gate devices in the...
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IPC IPC(8): G06F17/50
CPCG06F30/30
Inventor 方镜清
Owner 中山芯达电子科技有限公司