Hello and welcome to the #nakeddiefriday again. This one will be a continuation of the previous one with the same exhibit but in more depth. :-)
To remind you, this is the unnamed smartcard IC, which I believe was fabbed by Samsung.
Let's try removing some metal from the top. 🧵
With that, I think I will wrap it for this time. Thank you for following along, I hope you enjoyed exploring this creation.
As always, I am happy to accept any donations to #nakeddiefriday whether in samples or in cash to mitigate the supplies costs. Please get in touch if you want to support my work.
I wish you a nice and calm end of the week. See you next Friday!
Hello, wonderful people. Taking a break is good, so I am taking a couple moments to write the #nakeddiefriday post of the week.
Today we have this interesting sample. Yes, it has certainly seen better days; been sitting in a queue for a real while now. This is again a smartcard chip without a name to it. I believe this to be fabbed by Samsung, and be rather old. The chip is built using poly-gate CMOS with 3 metal layers; later processes moved to a higher layer count.
Hello and welcome to the first #nakeddiefriday of this spring. Today we have a family visit; I got several dies from the same manufacturer which is Starchip. I know, hardly heard of them, but they seem to make smartcard chips. They use manufacturer code 0x0081 in CPLC data.
The first on is SCF384G, dated 2010. A couple memory arrays, an area at the top where unknown things happen (probably power regulation), and a sea of gates in bottom right. There are also two smaller unbonded pads right next to it.
Hello! It's #nakeddiefriday today, and what I got for you is yet another smartcard chip. Please welcome an unnamed die marked K2D0A, fabbed by STMicro. This came from [REDACTED], used to [REDACTED]. The die oriented with power supply pads on top, so it's possible to figure out which die pads correspond to which module pads. Unusually enough, there are 6 pads bonded out; the function of the extra
pad is not known at this time-- certainly not VPP.
A short thread follows.
Greetings and welcome to today's #nakeddiefriday installment.
Today's guest is a smartcard chip, for which I do not know the actual p/n -- only it's die marking: M7690-G1, by Infineon. This came from a SIM card. The chip had polyimide on top which had to be stripped off, hence the damage on some top metal.
Unfortunately, power distribution routing and CMP dummy fill obstructs the majority of the detail. 🧵
Hello! It has been a little while, but #nakeddiefriday is back in town.
Today's exhibit is an old PIC1650A. Yes, one of *the* PIC series of microcontrollers. Note it was designed by General Instrument in 1980. It was fabbed in a single metal layer, metal-gate NMOS process. The image is about 4.3x3.8 mm.
No full-res link as SP is still borked.
As I will be travelling starting tomorrow, I declare the #nakeddiefriday today.
Instead of going deeper into one particular die, this will be several of them but one-pagers.
This one is HV9911 by Supertex (now owned by Microchip). Those following me have probably seen the epic struggle with restoring a diving light; this one came from the LED driver chip in the light. Entirely undamaged, as far as I can tell. Of particular interest is an array of fuses in the top right corner.
Hello and welcome to the second installment of #nakeddiefriday in this new year!
Today's image is of a M37620E8FP, a Mitsubishi microcontroller. This should be one from "group 7620" but I did not find a datasheet for this one. Custom markings on the package likely identify the ROM and its version.
Full-res pano: https://siliconprawn.org/map/mitsubishi/m37620m8-/infosecdj_mz_nikpa40x_50p/
Many thanks to @RueNahcMohr for supplying this sample!
DJ🌞
Arthur van der Harg