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DLP5500: The data sheet says the device is hermetic but the mechanicals say an adhesive is used to seal the device

Prodigy 30 points

Replies: 4

Views: 83

Part Number: DLP5500

Hi

I am looking for an explanation of the “hermetic sealing process” used for the DLP5500.

The military standards precludes using organic adhesives to hermetically seal a Microcircuit package.

Obviously , this is not a military device but is the adhesive an organic or is a special coating like Atomic

LaYer deposition (ALD) used to obtain true hermeticity. Is the term adhesive to mean something else?

Check the mechanical drawing and there is a note on adhesive.

I am looking at a space application so this requirement is important

Also is there a moisture getter in the package?

Thanks

Tom Terlizzi

GM SYSTEMS

KINGS PARK , NY

  • Tom thank you for the question.
    The DLP5500BFYA DMD is not in a hermetic package.
    Where are you finding a reference that it is in a hermetic package?
    For applications requiring a hermetic package we have a series of DMDs in our Type A hermetic packaging.

    http://www.ti.com/dlp-chip/advanced-light-control/high-speed-visible/products.html#p2438=400-700

    Carey Ritchey

    Texas Instruments

    Industrial Business Development Manager

    DLP® Enterprise & Cinema Display

     www.ti.com/dlp

  • In reply to Carey Ritchey:

    Hi Carey, I able to log in to the TI Forum now and pose this follow up question.

    My question on DLP hermeticity

    Hi Carey, Thanks for your quick response. For some strange reason I can not reply to you via the TI forum. You are correct on the hermetic requirement on the DLP5500 as I reviewed the data sheet again. My mistake. What DLP devices are hermetic? And a few final questions on the non hermetic DLP products is their any Moisture barrier on the die? And how is the window/lid attached to the package? Are there any articles or write-ups on how the non hermetic parts are assembled that you can point me to? Thanks again. Tom Terlizzi Terlizzi@gmsystems.com

  • In reply to TOM TERLIZZI:

    Tom


    We currently offer 7 DMDs that are in a hermetic package (see below)

    http://www.ti.com/dlp-chip/advanced-light-control/products.html#p2438=363-420;400-700&p1907=DMD

    I am not aware of any documentation regarding the assembly of our Wafer Level Package (WLP) DMDs

    Carey Ritchey

    Texas Instruments

    Industrial Business Development Manager

    DLP® Enterprise & Cinema Display

     www.ti.com/dlp

  • In reply to Carey Ritchey:

    Hi Carey,

    thanks for the information on which DLP DMD devices are hermetic

    regards

    Tom