Question

The latest method to prevent PCB copying and cracking

Answer 1

The latest methods to prevent PCB copying and cracking include:

1. Take encryption measures: Encryption technology can be used to encrypt key circuits and components in the PCB, so that copycats cannot easily obtain the complete circuit information of the PCB.

2. Adding useless characters: Adding some useless characters in the signal processing process, such as transistors, small chip capacitors, TO-XX diodes, small chips with three to six pins, etc., can increase the difficulty for decryptors.

3. Use bare chips or custom chips: Hide the model and function of the chip so that decryptors cannot easily identify it.

4. Encapsulate key components: Encapsulate key components (such as CPU, DSP, etc.) so that other components on the PCB cannot easily access these key components, thereby preventing the PCB from being copied.

5. Change the PCB layout: Constantly changing the layout and wiring of the PCB makes it impossible for copycats to infer the structure of the circuit and the connection relationship of components by observing the appearance of the PCB.

6. Use component hiding technology: Using component hiding technology, no components can be seen on the surface of the PCB, thus preventing copycats from inferring the circuit structure by observing component locations and connection relationships.

7. Encrypt PCB design files: Encrypt the PCB design files so that copycats cannot obtain the complete design files of the PCB.

8. Use multi-layer boards: The use of multi-layer board design makes it impossible for copycats to infer the structure of the entire circuit by observing the wiring and component connection relationships of a single-layer board.

9. Add a self-destruct mechanism: Add a self-destruct mechanism to the PCB. When the PCB is pirated or copied, the self-destruct mechanism can be automatically triggered to prevent the PCB from being copied.

In summary, to prevent PCB copying and cracking, we need to start from multiple aspects and use a combination of multiple technical means to increase the difficulty and cost of copying, thereby protecting the company's core technology and intellectual property rights.

Answer 2

The latest method to prevent PCB copying and cracking:

1. Using micro-hole technology: Making micro-holes on the PCB makes the PCB surface look smooth, but in fact many components and circuits are hidden. This makes it difficult for board copyists to judge the circuit structure and component connection relationships of the PCB through its appearance.

2. Use blind and buried via technology: Blind and buried vias are a PCB manufacturing technology where no components and lines can be seen on the surface of the PCB, but the circuits and components inside the PCB can be accessed through test points or specific interfaces. This can greatly increase the difficulty and cost for copycats.

3. Customized special components: The use of customized special components, such as ICs, resistors, capacitors, etc. with special shapes or functions, makes it impossible for copycats to easily find replacement components or copy the original circuit structure.

4. Use mixed-signal technology: Mix digital and analog signals together, making it difficult for copycats to isolate key signals and crack them.

5. Encrypted firmware: The firmware is encrypted and stored in the chip so that copycats cannot easily read and copy the program code in the chip.

6. Add hardware security modules: Use hardware security modules, such as smart cards, security chips, etc., to protect key information in the PCB so that copycats cannot easily obtain confidential information in the PCB.

7. Consider virtual prototyping technology: Virtual prototyping technology can be used to simulate the behavior and performance of a circuit without actually manufacturing the PCB. This allows potential design issues to be identified and resolved at an early stage while reducing the risk of copycat copying.

Preventing PCB copying and cracking requires the continuous use of new technical means and a combination of multiple methods to increase the difficulty and cost of copycats, thereby protecting the company's core technology and intellectual property rights.