Electronic product with safety device and its using method
A technology for safety devices and electronic products, applied in the field of safety devices, can solve the problems of multi-code assembly, poor process flexibility and use flexibility, increased process steps and manufacturing costs, etc.
Inactive Publication Date: 2007-07-18
SEMICON MFG INT (SHANGHAI) CORP +1
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Problems solved by technology
[0007] The disadvantage of mechanical safety devices is that the data must be input in the form of electronic signals before the assembly process is completed, and the process flexibility and use flexibility are poor.
Only pre-determined data can be entered at the manufacturing site, and users cannot be allowed to enter required personal data
Moreover, if the receiving end is not completely removed and the wire terminal is properly insulated due to negligence and other factors during the packaging process, the data assembly may still receive noise, etc.
[0008] The disadvantages of the coded safety device are: not only the electronic product has more coding assemblies, which increases the cost and size of the product; but also needs to input the data coding material first, which increases the process steps and manufacturing cost
Method used
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Embodiment Construction
[0028] According to the foregoing discussion, a preferred embodiment of the present invention is a security device for electronic products. As shown in FIG. 2A , it at least includes a data assembly 21 , a receiving device 22 , a wire 23 and an EEPROM transistor 24 .
[0029] Here, the receiving device 22 is used to receive these electronic signals input from the outside; the data assembly 21 is used to process most electronic signals; the wire 23 is used to connect the receiving device 22 and the data assembly 21 . Generally speaking, the data assembly 22 can be one or any combination of the following objects: microprocessor, integrated circuit, special purpose integrated circuit, memory, dynamic random access memory, static random access memory, electronically erasable Divide Programmable Memory Read Only Memory. The receiving device 22 can be one of the following items or any combination of the following items: metal pad, universal serial port. However, it must be emphasi...
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The present invention relates to electronic product with safety device and its usage. One EEPROM transistor is connected to the receiver for receiving the external electronic signal and the wire of data assembly for storing and processing the electronic signal, so that the drain of the EEPROM transistor is electrically coupled to the wire, the gate and the source are electrically coupled to reference potential point. Before receiving electronic signal, the EEPROM transistor is made to in off state via ultraviolet erasing or other mode; and after receiving electronic signal, high voltage signal is fed to the wire to make the EEPROM transistor in programmable on state, so that no any electronic signal the receiving end receives after that is stored or processed by the data assembly.
Description
technical field [0001] The invention relates to a security device with an electronic product and a method thereof, in particular to a security device and a method using an electronically erasable programmable read-only memory transistor. Background technique [0002] With the development of semiconductor technology, more and more electronic products can provide the function of carrying information, such as memory card, Smart Card, CompactFlash Card, Memory Module, Smart Media Card, Secure Digital Memory Card and Multi-Media Card, etc. . This type of electronic product basically has a receiving end and a data assembly. During the manufacturing process, the receiving end receives the electronic signal (corresponding to the information to be stored) input from the outside, and uses the data assembly to store / process all received electronic signals. After the electronic product is assembled, the information already exists in the electronic product, and the user can obtain the ...
Claims
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IPC IPC(8): G11C16/06G11C16/22
Inventor 许丹
Owner SEMICON MFG INT (SHANGHAI) CORP