Reverse Engineering PCB
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High Density Interconnect Printed Circuit Card Reverse Engineering
First of all it is High Density Interconnect Printed Circuit Card Reverse Engineering: The quantity increasing of Semiconductor’s complexity and logic gate will require the integrated circuit to embed with more and more pin-outs and finer patch among...
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Manage Component Library After PCB Circuit Card Cloning
PCB Circuit Card Cloning evaluation will consider a lot of elements, those developing tools searching by designer must rely on the complexity of the pcb circuit card they reverse engineering. since the system’s complexity is increasing year by year, ...
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Differential Line design rules from PCB Wiring Card Cloning
When applying the strip line layout for Pcb wiring card cloning, signal will be clamped between the FR-4 materials, in the micro-strip, the copper conductor is exposed in the air. Since the minimum level of dielectric constant of the air is Er=1, so ...
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Simultaneous Switch Noise From PCB Wiring Card Copying
The first challenge of PCB Wiring Card Copying is simultaneous switch noise or simultaneous switch output. Mass amount of high frequency data stream flow will cause the bell vibration and cross-talk on the data line, power supply and ground plane wil...
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PCB Card Cloning Concept
An illustration of the PCB Card Cloning concept using an ADC with high impedance differential inputs is shown in below Figure. A High-Impedance Differential Input ADC Also Allows High Note that the general concept can be extended to virtually any sig...
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Schematice Restored By PCB Card Reverse Engineering
This schematice restored by PCB Card Reverse Engineering allows relative freedom from tightly controlling ground drop voltages, or running additional and/or larger PCB traces to minimize such error voltages. Note that it can be implemented either wit...
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Printed Circuit Board Cloning Principle
Full signal transmission accuracy can still be accomplished in the face of such high noise voltages, by employing a Printed Circuit Board Cloning principle discussed earlier. This is the use of a differential-input, ground isolation amplifier. The gr...
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Ground Isolation Techniques
While the use of ground planes from Printed Circuit Board Gerber Regeneration does lower impedance and helps greatly in lowering ground noise, there may still be situations where a prohibitive level of noise exists. In such cases, the use of ground e...
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Ground Noise and Ground Loops
A more realistic model of a ground system from PCB Reverse Engineering is shown in below Figure. The signal return current flows in the complex impedance existing between ground points G1 and G2 as shown, giving rise to a voltage drop X V in this pat...
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Signal Return Currents
Kirchoff’s Law tells us that at any point in a circuit the algebraic sum of the currents is zero. This tells us that all currents flow in circles and, particularly, that the signal return current must always be considered when analyzing a circu...
