2 Replies Latest reply on Sep 15, 2013 1:21 PM by bmah

    FRAM Radiation test data

    mathew.maher

      Hi,

         

      Do you have any test data available for radiation exposure and SEU/SEL on the FRAM parts? I'm specifically looking at FM22LD16 parts, but anything would be good. Looking to get confidence in these parts for a radiation harsh environment.

         

       

         

      cheers

         

      Mat

        • 1. Re: FRAM Radiation test data
          asha.ganesan
                  Hi, I have attached a document which shows the test results of FRAM (in general) for susceptibility to external electromagnetic field and radiation. However, this doesn't give information about SER. I hope this document is useful to you. Regards, Asha   
          • 2. Re: FRAM Radiation test data
            bmah
                    Volatile memories, DRAM and SRAM, use a capacitor to store charge or a simple latch to store state. These cells can be upset by alpha particles, cosmic rays, heavy ions, gamma, x-rays, etc. which cause bits to flip to an opposite state to cause a soft error. Since the F-RAM cell stores the state as a PZT film(lead zirconate titanate ) polarization, a particle hit is very unlikely to cause the polarization to change a given cell’s state.