Venus PFMF validation

Venus PFMF validation、1. to validate if it's influenced by C5 Broken ? 2. to validate if it's same problem between PFMF & linearity error abnormal ?

Venus PFMF validation

• 1. to validate if it's influenced by C5 Broken ?
  • to do list: prepare sample A-D to test
• 2. to validate if it's same problem between PFMF & linearity error abnormal ?
• test conclusion
  • 1. Vout is more sensitive to external field disturbance than Vref.
  • 2. sensor is more sensitive to X axis external field disturbance.
  • 3. A samples and B samples are some level on PFMF immunity. -> C5 broken cann't lead to poor PFMF immunity.
  • 4. #6 - #10 are some level on PFMF immunity. -> linearity error abnormal are not lead to poor PFMF immunity . ? 由于#6-#10经过temp cycle，所以不确定linearity error是否异常，所以需要进一步Validation 4.' -> it maybe improved for immunity to PFMF after thermal treatment. (#6 - #10 went through Characterization@25C test and thernal drift @-40C to 105C test)
  • 5. continual validation action 3&4
• 3. to validate if thermal treatmeet would improve PFMF immunity?
  • A1 & B1 go through temp cycle, and then do PFMF test, compare the two results.
  • A2, A3 & B2 ,B3 go through thermal shock, and the do PFMF test ...
• 4. to validate if thermal treatmeet would improve linearity error?
  • to do list: retest the linearity error of C&D samples, 5pcs totally.
    • if all is OK --> then No.
    • if results aren't change --> then No.
    • if no, perform thermal shock and then do temp cycle again.
  • ref to CFU experience, temperature cycle would not improve linearity error abnormal, but thermal shock will.
• sample define