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• Post #4407600

  why the hell did I wake up at 6am...

• Post #4398616

  Oh hey. Just wanted to let you know today that I am open to hobby/public IC decapping and imaging projects. Boosts and other sharing are always appreciated! More info here: https://siliconpr0n.org/archive/doku.php?id=infosecdj:start#commissioning_work #microscopy #reverseengineering #electronics

• Post #4398295

  RE: https://oldbytes.space/@gloriouscow/117045025719349470 I keep asking myself the same, time after time

• Post #4282290

  Hello and welcome to #NakedDieFriday -- the last one this month. Please have a look at this nice die, designed by @mole99@fosstodon.org as part of his master's thesis. It's called Greyhound: A RISC-V SoC with tightly coupled eFPGA on IHP SG13G2. For once, this is something where sources are available: https://github.com/mole99/greyhound-ihp/ And a full-res map I took of the sample Leo provided me with: http://infosecdj.net/map/ihp/mole99-greyhound/infosecdj_mz_nikpa40x/ #electronics

• Post #4216945

  I mean, yeah, sure, we buy them by the bucket anyway. #fpga

• Post #4160061

  I just noticed, but when a security guard punches in the combination on a panel, the sound effect is in fact on his voice track. He literally does "poom poom" with his mouth, and I find that hilarious. #halflife

• Post #4071922

  Ahoy there, #NakedDieFriday is late in the day but still happening! Today I got a Motorola part for you, one named SC541097. This looks like a special run of MC68HC05JP, which is a HC05-based microcontroller. Many thanks to @RueNahcMohr@infosec.exchange for supplying this sample! Full-res map: http://infosecdj.net/map/motorola/sc541097-j53w/infosecdj_mz_nikpa40x/ #electronics #reverseengineering #microscopy

• Post #4070053

  Almost there. :-)

• Post #3886639

  Hello, how are you doing? This is #NakedDieFriday speaking, and today's post is the continuation of the one from last week. It is the second die out of Conexant FM336PLUS, a modem chip. Unfortunately, there was some trash on the die which I could not remove. The die is larger than the other one and appears to be fully digital. There are a lot of memory blocks as well. Let's have a more detailed look. Full-res map: http://infosecdj.net/map/conexant/fm336plus-b/infosecdj_mz_nikpa40x_66p/...

• Post #3877792

  RE: https://hachyderm.io/@GrantMeStrength/116913396074285635 Should we start talking about retrocomputers of Theseus, or is it too soon? #retrocomputing

• Post #3864936

  RE: https://infosec.exchange/@nmott/116930264928345269 Oooh... watch this becoming illegal in 3, 2, 1, ...

• Post #3724803

  Hello! This is a very late #NakedDieFriday talking. I got caught in something here and totally lost track of time. Today we have one half of a chip. :D This FM336PLUS by Conexant contains two dies, but I only imaged one of them due to time constraints. The product itself is a "High Performance Fax Modem" going all the way up to 33600bps! Hands up those who had one of 33.6k modems back in the day. I did, and I loved it. Many thanks to @RueNahcMohr@infosec.exchange for supplying this s...

• Post #3680259

  Extracted one ICX453AQ, a CCD sensor used in several Nikon cameras. Does not look damaged in any way, fingers crossed.

• Post #3623722

  Good folks, is there anyone that could help pull a datasheet off a Chinese site? They seem to require a registration using a mobile number, but I am in a country that's not listed as acceptable. It would be best to use a "free" throwaway SIM if you have access to that. URL: https://gitcode.com/Premium-Resources/457d7

• Post #3561924

  Greetings! How are you all doing? It's been raining here on and off for a couple days now. But that's not going to stop #NakedDieFriday is it. Today's exhibit is a sibling of the venerable 6502. This is almost the same, but made in CMOS: R65C02 by Rockwell. The design has been enhanced in several aspects over the NMOS one. Full-res map: http://infosecdj.net/map/rockwell/r65c02p3/infosecdj_nikpa40x/ NOTE: The map is layered, you can see the metal layer and the poly layer. #retroco...

• Post #3434971

  According to the weather forecast, this is "clear skies".

• Post #3393833

  Hi! I am looking for a copy of Motorola HCA62A00DM/D, Macrocell Array Design Manual. If you have one, whether physical or digital, please let me know! Boost me to the top, my good folks. :-)

• Post #3356414

  Hello and welcome to this week's installment of #NakedDieFriday ! Today I got a new (for the collection) manufacturer, nevertheless very familiar to the #retrocomputing crowd: Western Digital. And the chip they made is WD10C27, solemnly described by the manufacturer as "data separator" for hard disk applications. The data sheet claims this is made with a 1.25u 5V CMOS process. Many thanks to @RueNahcMohr@infosec.exchange for supplying this sample! Full-res map: http://infosecdj....

• Post #2232641

  Greetings. This is #nakeddiefriday and today I got one on a reader's request. I was kindly provided with the ASIC chip from the new #Lego Smart Brick. It is the one marked DA000001-04, which nobody really knows what it is and who made it. There were suggestions it was made by Dialog but no solid evidence AFAIK. The first image is with the die intact. You can see a ball pad array on the redistribution layer. RDL is made from polyimide with copper traces, not unlike flex PCBs. It is bond...

• Post #1888665

  Good day to you! It is the first day of May here in Copenhagen, it is Friday, and it is hot like summer. This means, it is a good day for #nakeddiefriday so without further ado, here it is. This is one Zilog Z765APS, a floppy disk controller chip of 1984 vintage made in NMOS. This one is very similar to NEC uPD765A; I am not sure if Zilog licensed the maskwork. What I find particularly interesting about this one is a relatively huge microcode ROM on the left side of the die. Wouldn't it...

• Post #1581544

  A modern #art piece? Or a deprocessed #semiconductor device? Why not both? #electronics

• Post #1456252

  Hi! A little bit late in the day, but #nakeddiefriday is still happening today. And today's exhibit is TC8568AM by Toshiba. This is a VFO to be used in floppy disk controllers. This is made very prominent on the die itself. Interesting how such a discrete part was still made in early 90s, where I kind of expected them to be replaced by fully integrated parts. A really short thread will follow. Full-res map: http://infosecdj.net/map/toshiba/tc8568am/infosecdj_mz_nikpa40x_66p/ Many than...

• Post #1008280

  Heeeey, I', going to bed before midnight. Making progress!

• Post #1008279

  I really want a "free all unused memory" in my browser...

• Post #1008277

  ...I also want a JPEG compressor that a) can do multithreaded work and b) can write incrementally e.g. in blocks of 1k lines at a time... I am known to want too much.

• Post #920699

  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. 🧵 #electronics #reverseengineering #smartcard

• Post #549670

  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...

• Post #529310

  Nothing like a 18hr imaging run ruined by sunlight and some trash on the specimen... Sigh. Here we go again.

• Post #529309

  This was for the lapping experiment no.2. I am and will be taking images of every step e.g. when I hit a layer. This is around an hour of lapping work and ~18 hours of imaging the result. So one layer per day if I do everything well unlike yesterday, lol. See alt text for description. #reverseengineering

• Post #506841

  First semi-successful attempt at deprocessing by lapping. The outcome is extremely uneven, with metal2 remains showing over metal1, and a larger corner area being ground down to substrate. Despite that, it may be possible to recover around half the bits visible in the ROM block. If done more conservatively and with multiple intermediate steps, full recovery can be performed. #electronics #reverseengineering #deprocessing