1G5, Macronix MX23L3254 SPI *mask ROM*.
I guess it's meant as a lower cost replacement for SPI flash in high volume applications?
I think this may have come from the Furby but can't recall for sure.
1G6, ADI AD1981B AC97 audio codec.
Mostly analog stuff with what looks like a bit of memory (buffer FIFO?) in the top left corner.
1G7, mask ROM programmed microcontroller from an old RSA SecurID 2fa token.
Very old (1 micron?) 2-metal technology.
1G8, Promise PDC20267 PCI IDE RAID controller. 1999 copyright date on the die.
Looks like they may have been I/O limited on die size? It's hard to tell with the filler metal but it looks like the inner square block has all of the logic. The two big curved traces coming in from the bottom are probably core power and ground, then at the top left is an analog block (likely a dual PLL).
Would need to delayer but I don't think there's anything in the rest of the die. They probably just couldn't fit all of the I/Os needed for several channels of IDE plus PCI into a smaller die area.
1G9, SunPlus SPCA533A digital camera SoC. From one of my 2008-era digital cameras which failed on me after a few years of use.
Some substrate stuck on the underside of the die pushing it off level, so there's alternating areas of good and bad focus. A tilt stage would fix this.
Looks like PLLs in top left and right center, a small memory block (cache?) top left, an even smaller one (FIFO?) top right, then larger memory areas in the bottom right probably containing the main system cache/RAM and maybe some ROM.
Given the multiple small cache-looking memory blocks, this probably has a main CPU plus some accessory DSP core to run compression or something.
1G10, FTDI FT232RL (legit one this time).
Small FIFO SRAM top right, some analog logic (PLL?) bottom right, then just standard cells all over the rest of the die. No CPU.
This is a fairly old technology, something like 500nm, but planarized. It's a huge die for what it does and I'm not surprised that FTDI is NRND'ing it in favor of the newer H series which are made on 180nm UMC.
Ok, that's it for a bit. Time to have dinner and play with the kid until bedtime.
Still have another 30 chips in this tray plus several more partial trays to get through.
Ok, back in the lab for more chip imaging. Let's see how far I can get tonight.
This time I'm testing out the batch mode of the CNC microscope. Here I have scans of six chips running sequentially.
And it's done. 16 mins 30 seconds (990 sec) to take 642 images totaling 731 MB (JPEG), across six chips.
That's an average of 0.648 images per second and 5.9 Mbps of image throughput.
Queued up another 8 chips to run while I stitch and postprocess the first batch.
Edited 2y ago
1H4, Renesas R5H30201 security processor. Used in older iPod accessory authentication.
Not a lot to see, everything is covered in antitamper mesh.
1H5, another Microchip ENC424J600 10/100 Ethernet MAC/PHY.
This one has a bit of debris over the PHY area but has the logo and mask rev markings clearly exposed.
1H6, yet another ENC424J600. This time, partially delayered with HF. Looks like all of the first and a bit of the second metal layer is removed.
You can now clearly see the 24 kB of SRAM buffer just left of the PHY analog block and right of the digital MAC/register interface circuitry.
Aaaand just as I clicked post on that last toot, the scan of eight chips finished.
32 min 55 sec (1975 sec), 1267 images, 1.2 GB.
This averages out to 0.641 images/sec, 4.86 Mbps.
Six more queued up. That's probably going to be it for tonight.
1H7, Silicon Image SiI164 PanelLink Transmitter. TSMC 350nm, immediately recognizable by the coloration.
Has a little doodle of Milhouse in the top left.
@azonenberg everything's coming up Milhouse!
1H10, Linksys LNE100TX PCI 10/100 baseT Ethernet controller.
Has "ADMTek" and "Adhoc Tech" markings on it, so probably an OEM rebrand.
Buffer SRAM bottom right, small memory bottom left, Ethernet PHY analog block top right.
1J1, FTDI FT232H USB-serial/SPI/JTAG bridge.
Die revision A12. Did they seriously need twelve mask spins to get a USB-UART right?
USB PHY top center, buffer SRAM bottom right.
Looks like UMC 180nm from the fill pattern in the bottom right, but also has other fill patterns elsewhere on the die which is weird. MIxed CAD tools and different fill rule decks for each?
