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CD4052B: 关于 CD4052BPWR 的X-RAY芯片内部构造变动，请问这个是正常的吗？

chan calvin
Prodigy 25 points
Part Number: CD4052B

Tool/software:

上图是两个产地CD4052BPWR 的X-RAY 芯片内部构造对比，左边DC2022是made in China，右边DC2024对应的是made in Malaysia

请问这种现象是否正常?有没有PCN letter? 谢谢！