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SN74LVC1G07: Can SN74LVC1G07DRYR withstand e-Beam sterilization?

Poh Kok Keng
Genius 5132 points
Part Number: SN74LVC1G07
Other Parts Discussed in Thread: SN54AC14, SN54AC00,

 

Dear Sir/Madam,

 

Can I check I am using one SN74LVC1G07DRYR in my medical product.

For this PCBA, the electronics needs to withstand e-Beam sterilization, this is one of the requirement for medical requirements.

Is SN74LVC1G07DRYR able to support this?

 

Best regards,
kpk

  • 0
    TI__Mastermind 24485 points
    Hello kpk,

    This device is not tested to withstand radiation, so this device will not support that requirement.

    We do have parts within TI that support high-reliability and other applications that may be exposed to radiation.
    I would recommend that you look into our space and high reliability parts.
    www.ti.com/.../overview.html

    If it needs to withstand radiation you will likely need a part that is specifically designed to be radiation hardened, like many of our space parts.

    Best,
    Michael
  • 0 in reply to Michael J Schultis
    TI__Guru 62930 points
    KPK,
    I am not certain the requirements that ebeam sterilization imposes. Likely is its an ionizing dose that will accumulate with each sterilization.
    Most of our standard logic devices have fairly low TID performance. I have heard estimates of 8-10Krad for TID.
    We do have 3 devices that that SEL and TID improved from the AC family.
    They are the SN54AC00, SN54AC02, and SN54AC14. They will have greater than 50Krad TID. Note, these are not the same devices as commercial as they have process modifications to meet these limits.

    Regards,
    Wade
  • 0 in reply to Wade Vonbergen
    Genius 5132 points
    hi Wade,

    The end customer replied that the E-Beam requirement is 45kgY. Does that sound meaningful to you?

    Best Regards,
    kpk
  • 0 in reply to Poh Kok Keng
    TI__Guru 62930 points
    Kpk,
    A couple comments.
    1) The High Reliability group will test our space rated products for total ionizing dose. We have not tested the SN74LVC1G07 as it is not one of our space rated devices.
    2) When we do test space devices, the absorbed dose is measured in krad(Si).
    3) As mentioned earlier, I have heard that similar devices on the process for the SN74LVC1G07 performed around 8-10krad(Si). I do not know if the there is relationship that would allow conversion of heavy ion induced radiation to xray induced radiation. I can check with our radiation expert to see if he can comment. He is currently out on travel.
    Regards,
    Wade
  • 0 in reply to Wade Vonbergen
    Guru 244360 points

    45kgY. Does that sound meaningful to you?

    No, but the spelling "45 kGy" would. ☺

    1 Gy = 100 rad, so 45 kGy = 4500 krad.

  • 0 in reply to Clemens Ladisch
    TI__Prodigy 250 points

    As Wade indicated 45 kGy => 100 * 45,000 = 4.5MRad which is a VERY high total ionizing dose. The only doses we have seen that approach this is parts in a nuclear reactor or accelerator or sterilization doses.  Most electronic devices will NOT survive this dose level unless shielded and only if exposed without and bias.

    Not sure if this answers your question?

  • 0 in reply to Robert Baumann
    TI__Prodigy 250 points
    OK, for some reason I did not see the previous emails, only the last one. As I suspected this is for sterilization. As I said, I would make sure the devices are not biased during the exposure as a means of reducing the Total Ionizing Dose (TID) effect. While we test our space parts, we seldom go above 100 krad = 1 kGry since this is usually enough for most space missions (we have some deep space missions that require 300 krad).
  • 0 in reply to Robert Baumann
    TI__Guru 62930 points
    KPK,
    Please click "This resolved my issue" if your questions are answered.
    Thanks,
    Wade