How To Identify True And False Chips?

Here is Rigid Pcb Manufacturer talking about How To Identify True And False Chips.

Double Sided Rigid Flex PCB

Layer count: 2 Board thickness: 1mm±0.1mm Trace/Space: 5/5mil Surface Treatment: ENIG

Blind & Buried PCB

Layer count: 10 Board thickness: 2mm±0.2mm Trace/Space: 3.94/3.94mil

Printer motherboard PCBa PCB assembly

High precision Multilayer PCB Printed Circuit Boards Manufacture Blind And Buried Flexible PCB HDI PCB

Customized double side rigid-flex PCB circuit board

High quality OEM Supplier Single double multilayer HDI PCB hot sales rigid PCB

Custom multilayer flexible rigid flex circuit boards PCB

HDI PCB

Layer count: 10 Board thickness: 1.6mm±0.15mm 0.1mm laser drill,0.15mm mechanical drill.

Layered Rigid Flex PCB