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DLP4620S-Q1: Thermal Interface Area confirm

hai.tuo
Prodigy 30 points
Part Number: DLP4620S-Q1

Which area is Thermal Interface Area?

The Solid one or Dashed one？

Is there  any information like size &location about the Thermal Interface Area if the Dashed one is.

  • 0
    TI__Expert 5010 points

    Hi ,

    Please allow me some time to look into this.

    I have a DLP4620S-Q1 DMD with me, and I can tell you that the solid area is the gold symbolization pad that DMDs normally have on the back.
    Here is an image from the Section 10 of the DLP4620S-Q1 DMD data sheet that shows the back side metallization with dimensions:

    Table 4-2 relates to Figure 4-1 for more information on the circular test pads:

    Regards,
    Michael Ly

  • 0 in reply to Michael Ly
    TI__Expert 5010 points

    Hi again ,

    Great news! I got an answer back from a colleague much faster than I thought I would.

    The thermal interface is the dashed line. The solid line is only there to show the symbolization pad.

    The thermal interface is thus the wider, dashed area, This area covers a larger on the packaging where the DMD lies underneath.

    Regards,
    Michael Ly