Could you please share LPS22HB and LIS2DW12 body marking specification? No information in ST datasheets.

[GChri.17]

..

[Eleon BORLINI]

​Hi @GChri.17​ , do you need the meaning of the alphanumeric marking and of the 2D matrix code on the sensor packages? I can tell you that for LPS22HB case the "C839" marking stands for component from a LOT finished in wk 39 of 2018. In the LIS2DW12 case, the dot matrix can be read with a 2D code reader. But for which reason do you need to know the package code meaning? Regards

[GChri.17]

Hi Eleon,

Yes, my company raw materials receiving process requires to verify materials against datasheet, check and register date code information and verify component body marking before transferring those parts to our raw materials warehouse.

There should be a predefined marking stardard in ST for these references. Would have such standard document?

LPS22HB "C839" marking:

- What does ‘C’ stands for? country code? assembly location? ...

- next 3 digits stand for YWW: year & week: OK

LIS2DW12 case marking:

- what's the meaning of the content of dot matrix?

- what's the meaning of the 'T' symbol next to the dot matrix?

thanks!!