OFILM: NORDIC: NRF52840-CKAA-R quality anomaly

[rain.xie-Arrow]

Dear:

Production input 1300PCS, DPD current poor 64PCS, defective rate of 4.9%

Conclusion: Through verification, it is confirmed that the DPD current caused by U1 chip is too large and the U1 chip itself is faulty

Material batch information: 100006|YC010701096600|2324AE|3950|230612|250612|0026-3-2-2-102

UI芯片DPD电流不良分析报告.pptx

[Jared]

Hi,

What is meant by DPD current? I checked the power point but it's not written in English, could you translate it and upload an English one?

My understanding is that you see that 64 devices of 1300 produced has an abnormal current. Can you specify what current you measure, vs what current you expected to measure? Does the issue follow chip, for example if you replace a bad chip with a good chip on a faulty board, do you measure correct current?

regards

Jared