Name that Ware May 2019

The Ware for May 2019 is shown below.

It’s always tough to calibrate how much of a chip to show to make it identifiable, but not too easy to guess at the same time. Let’s see how this one goes…

15 Responses to “Name that Ware May 2019”

  1. phantom deadline says:

    Seems like a TFT, OLED or E-paper row/column driver to me. Circuitry from the top row looks like a shift register + latches and the bottom row are buffers

  2. willmore says:

    Looks like there’s seven ‘address’ lines and two ‘power’ lines. Some kind of 128 line multi-voltage decoder/driver?

  3. Thomas says:

    I’m going for an LCD row driver. The column drivers are more complicated (at least for a multi color LCD). The row driver is select-only, the column driver will have (non-linear) DACs.

  4. Karol Niewiadomski says:

    Maybe it is part (row or column driver) of some memory IC (EEPROM?). I don’t thing it’s part of display – most of them are bare-die flip chips, and here on the top are bond wires.

  5. ChuckB says:

    I think the lower edge is an actual edge, which would make this something like a 1 dimension CCD or other sensor? Perhaps like you might find in a scanner? I remember someone using a sensor like that to make a rain detector (circa 1983).

  6. Adi says:

    thermal printer head driver – for a label printer, maybe?

  7. Ben says:

    I’m thinking drop on demand driver or something similar.

  8. Sourcerer says:

    A caliper perhaps?

  9. jackw01 says:

    I’m going to guess this is part of a die from a contact image sensor (see https://compo.canon/en/product/cis/) used in document scanners. Older scanners generally used 1-dimensional CCDs, but the bond wires on those are usually positioned on either end of a long CCD. This photo looks like a section of a very long and thin die with bond wires along one edge, which seems to match up with the contact image sensors I’ve personally seen (https://i.imgur.com/V7fHe7m.jpg).

  10. Dave says:

    That looks like the back of a Variable Frequency Display “VFD” Driver.

    Mfgr unknown, Fab Plant Unknown, Date of birth unknown!

  11. Koffe says:

    About a decade ago I helped out debugging a fingerprint sensor ASIC using an Infared thermal imaging microscope. The layout of this IC is remeninescent of that particular finger print sensor. This was before the fingerprint sensors used a matrix layout and you had to swipe the finger across the sensor array. Hence my guess is a fingerprint sensor array from Fingerprint.

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