When devices are sent to Silicon Labs for a failure analysis RMA, the devices are tested to determine how and why the devices failed.  If you have MCU devices that have failed during testing or in the field and you wish to have them tested by Silicon Labs, please use the following steps:

1) Contact MCU applications product support at https://www.silabs.com/support/Pages/contacttechnicalsupport.aspx.  Submit a full description of the problem, including schematics and firmware if possible.  The MCU applications team will review the materials and approve the RMA if a failure analysis is required.  In many cases, the cause of the failure is determined when the MCU applications team reviews the materials.  In these cases, a failure analysis RMA is not required.

2) Once the RMA is approved, the MCU applications team will put you in contact with the sales representative or field applications engineer in your area.  The sales representative will assist you in obtaining an RMA number and they will also provide a shipping address for the devices.  You may provide up to 5 devices for failure analysis.

3) The failure analysis team will provide an initial report a few days after the devices are received, and then a final report after full testing is complete.  The length of time to provide the final report will depend on the complexity of the testing and the number of devices provided.  The reports will be sent to you through your sales representative.

4) Based on the results of the testing, the report might recommend for you to contact the MCU applications team for further investigation.  When contacting the MCU applications team, please provide the RMA number provided in step 2 along with the MCU support request number created in step 1.

There is no charge for performing a failure analysis RMA.