IC reverse design

What is IC reverse design? It is one of reverse technologies; technicians deeply research chip's technology principles, design idea, technology process, structure and much more by extracting, analyzing and sorting out chip's internal circuit. The main purpose is to verify design frame or analyze technical problem of information flow as well as promote new chip design or product design scheme. IC reverse design includes circuit modification, netlist/schematic extraction, logic function analysis, layout design and logic layout verification.
Circuit modification
Focused ion beam machine(FIB)can modify IC of multilayer wiring by etching and electrodeposition, including lead modification, material and ingredient identification, micro circuit malfunction analysis and so on.
Netlist/schematic extraction
Netlist/schematic extraction is an very important step in the process of chip reverse engineering. The quality and speed of netlist extract directly affect subsequent sorting out, simulation, LVS and much more.
Logic function analysis
Having netlist extraction been finished, it requests hiberarchy arrangement of flatten circuits, forming a circuit hiberarchy structure so that the design ideas and techniques are understood and errors are avoided when we look for netlist.
Layout design
Layout design is physical realization of circuit logic and product realization of integrated circuit.
Logic layout verification
After netlist and layout design, it's necessary to verify their correctness. To ensure complete design flow, chip netlist data and layout data are need to be verified.
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