#icre — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #icre, aggregated by home.social.
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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.
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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.
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Good evening! Well, it is evening here anyways, and I am still on time to do this week's #NakedDieFriday installment.
This here is a TDA8708T, made by Philips. It is a "video analog input interface", basically a 8-bit ADC with an analog front-end to capture video data. The die sports 3 metal layers but seems to be still designed with bipolar tech. Metal 1 was done with a different process, as it looks to be much smoother.
Unfortunately, I do not know enough on bipolar tech to provide any meaningful commentary here, so I hope you at least enjoy the image. 🙏
Full-res map: http://infosecdj.net/map/philips/tda8708t/infosecdj_mz_nikpa40x/
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Good evening! Well, it is evening here anyways, and I am still on time to do this week's #NakedDieFriday installment.
This here is a TDA8708T, made by Philips. It is a "video analog input interface", basically a 8-bit ADC with an analog front-end to capture video data. The die sports 3 metal layers but seems to be still designed with bipolar tech. Metal 1 was done with a different process, as it looks to be much smoother.
Unfortunately, I do not know enough on bipolar tech to provide any meaningful commentary here, so I hope you at least enjoy the image. 🙏
Full-res map: http://infosecdj.net/map/philips/tda8708t/infosecdj_mz_nikpa40x/
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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 bonded to the silicon die pads on the perimeter. Unfortunately, RDL considerably obscures the die.
Full-res map: http://infosecdj.net/map/csem/da000001-04/infosecdj_mz_nikpa40x/ (layered)
1/n
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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 bonded to the silicon die pads on the perimeter. Unfortunately, RDL considerably obscures the die.
Full-res map: http://infosecdj.net/map/csem/da000001-04/infosecdj_mz_nikpa40x/ (layered)
1/n
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I don't think I'll tell Travis Goodspeed what I'm doing to his wonderful tool...
(I'm adding template matching to MaskRomTool and it's doing a *spectacular* job at detecting flipped bits based on their diffusion shape)
#ICRE #ICReverseEngineering -
I don't think I'll tell Travis Goodspeed what I'm doing to his wonderful tool...
(I'm adding template matching to MaskRomTool and it's doing a *spectacular* job at detecting flipped bits based on their diffusion shape)
#ICRE #ICReverseEngineering -
Well hello and welcome to #nakeddiefriday -- the second one in April.
My pleasure to introduce you the guest of today: ATSAMA5D26C by Atmel. This is a SoC with one Cortex-A5 core and a boatload of peripherals.
Full-res map: http://infosecdj.net:8086/map/atmel/atsama5d26c-cu/infosecdj_mz_nikpa40x/
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Well hello and welcome to #nakeddiefriday -- the second one in April.
My pleasure to introduce you the guest of today: ATSAMA5D26C by Atmel. This is a SoC with one Cortex-A5 core and a boatload of peripherals.
Full-res map: http://infosecdj.net:8086/map/atmel/atsama5d26c-cu/infosecdj_mz_nikpa40x/
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Lunchtime project complete - this is the MKS GEN 1.4 (RAMPS 1.4) board which runs my CNC microscope. It now has RGB LED and halogen lamp brightness controls. #pyuscope #icre #icreverseEngineering
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Lunchtime project complete - this is the MKS GEN 1.4 (RAMPS 1.4) board which runs my CNC microscope. It now has RGB LED and halogen lamp brightness controls. #pyuscope #icre #icreverseEngineering
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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. 🧵
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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. 🧵
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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.
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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.
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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.
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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.
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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!
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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!
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Happy belated #nakeddiefriday to you all!
Here is one for this week; a mask ROM with p/n MSM531001B (as marked on the die) by OKI. It stores 1 Mb and has the standard pinout. Manufactured in a 1-metal 1-poly process.
Many thanks to @RueNahcMohr for supplying this sample!
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Happy belated #nakeddiefriday to you all!
Here is one for this week; a mask ROM with p/n MSM531001B (as marked on the die) by OKI. It stores 1 Mb and has the standard pinout. Manufactured in a 1-metal 1-poly process.
Many thanks to @RueNahcMohr for supplying this sample!
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It is #nakeddiefriday if I say so, so here is another naked die for your viewing pleasure.
This is IR2137 from International Rectifier Inc. It's a "high voltage, high speed 3-phase IGBT driver best suited for AC motor drive applications." One can clearly see a lot of circuitry triplicated on this die. Also, a very funny wheelies.
Many thanks to @RueNahcMohr for supplying this sample!
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It is #nakeddiefriday if I say so, so here is another naked die for your viewing pleasure.
This is IR2137 from International Rectifier Inc. It's a "high voltage, high speed 3-phase IGBT driver best suited for AC motor drive applications." One can clearly see a lot of circuitry triplicated on this die. Also, a very funny wheelies.
Many thanks to @RueNahcMohr for supplying this sample!
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The scary part of #ICRE is when photos like this start to make sense.
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The scary part of #ICRE is when photos like this start to make sense.
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Which pad is which? #BSBACM edition.
First we trace out the power pads...There are 52 bond pads and 48 pins, so 4 of those pads need to double up...
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Which pad is which? #BSBACM edition.
First we trace out the power pads...There are 52 bond pads and 48 pins, so 4 of those pads need to double up...
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Points available for anyone who can tell me what this chip is. #icre #nakeddiefriday
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Points available for anyone who can tell me what this chip is. #icre #nakeddiefriday
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Now what on earth is this doing?
#ICRE #ICReverseEngineringedit: Red is polysilicon, white is metal
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Now what on earth is this doing?
#ICRE #ICReverseEngineringedit: Red is polysilicon, white is metal
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I wonder what algorithm GIMP uses for "colour to grey". It seems to be slow, but on this chip at least, it's really good at 'seeing through' the dirt left over from delayering.
#ICRE #ICReverseEngineringEdit - seems like the contrast enhancement is done with the STRESS/Retinex algorithm:
https://docs.gimp.org/3.0/en/gimp-filter-c2g.html -
I wonder what algorithm GIMP uses for "colour to grey". It seems to be slow, but on this chip at least, it's really good at 'seeing through' the dirt left over from delayering.
#ICRE #ICReverseEngineringEdit - seems like the contrast enhancement is done with the STRESS/Retinex algorithm:
https://docs.gimp.org/3.0/en/gimp-filter-c2g.html -
Since today is another extremely gloomy day, here's a spurious die shot of the day for you.
This is the APV25s1 die made for CERN. The APV25 is the readout chip for silicon microstrips in the CMS tracker.
SiPron page: https://siliconpr0n.org/archive/doku.php?id=infosecdj:cern:apv25-s1
More about the chip: https://cds.cern.ch/record/478270/files/raymond.pdf
Many thanks to @cccpresser for supplying this sample!
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Since today is another extremely gloomy day, here's a spurious die shot of the day for you.
This is the APV25s1 die made for CERN. The APV25 is the readout chip for silicon microstrips in the CMS tracker.
SiPron page: https://siliconpr0n.org/archive/doku.php?id=infosecdj:cern:apv25-s1
More about the chip: https://cds.cern.ch/record/478270/files/raymond.pdf
Many thanks to @cccpresser for supplying this sample!
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Started doing some #ICRE on the ACM ASICs
OSD - https://siliconpr0n.org/archive/doku.php?id=infosecdj:general-instrument:72522-1
ASIC - https://siliconpr0n.org/archive/doku.php?id=infosecdj:general-instrument:72523-1Both seem to use the same process technology (2-metal non-planar CMOS) and ROM architecture (M1-programmed).
The interesting part is that some of the bits are visible. Looking at other tracks, it seems like M2 over silicon ends up green, but M2 over M1 looks darker.
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Started doing some #ICRE on the ACM ASICs
OSD - https://siliconpr0n.org/archive/doku.php?id=infosecdj:general-instrument:72522-1
ASIC - https://siliconpr0n.org/archive/doku.php?id=infosecdj:general-instrument:72523-1Both seem to use the same process technology (2-metal non-planar CMOS) and ROM architecture (M1-programmed).
The interesting part is that some of the bits are visible. Looking at other tracks, it seems like M2 over silicon ends up green, but M2 over M1 looks darker.
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I would love to know why the Acorn/#ARM Albion IOC has an all-seeing-eye symbol on the die. #ICReverseEngineering #ICRE
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I would love to know why the Acorn/#ARM Albion IOC has an all-seeing-eye symbol on the die. #ICReverseEngineering #ICRE
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Any #ICRE #ICReverseEngineering folks recognise these logos or the text? They're on a bunch of random silicon dice and packaged chips I was given.
They turned up at an estate sale in Bristol earlier this year.
Boosts appreciated
Text: Austria Mikro Systeme 1999
EURO-PRACTICE
P236
0000-07
69332-A37990-01 -
Any #ICRE #ICReverseEngineering folks recognise these logos or the text? They're on a bunch of random silicon dice and packaged chips I was given.
They turned up at an estate sale in Bristol earlier this year.
Boosts appreciated
Text: Austria Mikro Systeme 1999
EURO-PRACTICE
P236
0000-07
69332-A37990-01 -
Happy #nakeddiefriday to everyone! Let's get this ball rolling.
Today we have a real classic, the MC6845 by Motorola. This is a CRT controller chip used in quite a few video adapters back in the day.
Thanks to @gloriouscow for suggesting this one! We'll do a short thread looking around.
SiPron page: https://siliconprawn.org/archive/doku.php?id=infosecdj:motorola:mc6845p-jr5
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Happy #nakeddiefriday to everyone! Let's get this ball rolling.
Today we have a real classic, the MC6845 by Motorola. This is a CRT controller chip used in quite a few video adapters back in the day.
Thanks to @gloriouscow for suggesting this one! We'll do a short thread looking around.
SiPron page: https://siliconprawn.org/archive/doku.php?id=infosecdj:motorola:mc6845p-jr5
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Chips a la Phil #icre #ICReverseEngineering
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Chips a la Phil #icre #ICReverseEngineering
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And hey, since the weather is absolutely abysmal today, I will treat you to another die shot as an extension of #nakeddiefriday.
This is КР1810ВМ86, an otherwise identical clone of Intel 8086 made by Soviets at an unknown plant.
The 8086 was extensively reverse-engineered by @kenshirriff -- give his blog a read!
SiPron page: https://siliconprawn.org/archive/doku.php?id=infosecdj:unknown:kr1810vm86
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And hey, since the weather is absolutely abysmal today, I will treat you to another die shot as an extension of #nakeddiefriday.
This is КР1810ВМ86, an otherwise identical clone of Intel 8086 made by Soviets at an unknown plant.
The 8086 was extensively reverse-engineered by @kenshirriff -- give his blog a read!
SiPron page: https://siliconprawn.org/archive/doku.php?id=infosecdj:unknown:kr1810vm86
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We got #nakeddiefriday incoming! Sorry for being late.
Today's guest is a fun chip, a second-sourced Motorola design it would seem. A 68HC05C4 fabbed by Harris/RCA.
Let's have a look around!
SiPron page: https://siliconprawn.org/archive/doku.php?id=infosecdj:harris:68hc05c4
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We got #nakeddiefriday incoming! Sorry for being late.
Today's guest is a fun chip, a second-sourced Motorola design it would seem. A 68HC05C4 fabbed by Harris/RCA.
Let's have a look around!
SiPron page: https://siliconprawn.org/archive/doku.php?id=infosecdj:harris:68hc05c4
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Good #nakeddiefriday to you all! Hope your week was okay.
Today's guest is a CY8C21123 made by Cypress, a whopping SoC in a 8-pin package.
Many thanks to @mithro for supplying this sample!
Let's have a short walk-around thread...
SiPron page: https://siliconpr0n.org/archive/doku.php?id=infosecdj:cypress:cy8c21123-24sxi
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Good #nakeddiefriday to you all! Hope your week was okay.
Today's guest is a CY8C21123 made by Cypress, a whopping SoC in a 8-pin package.
Many thanks to @mithro for supplying this sample!
Let's have a short walk-around thread...
SiPron page: https://siliconpr0n.org/archive/doku.php?id=infosecdj:cypress:cy8c21123-24sxi
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It's a blasting a silicon chip with a mini torch to remove the passivation kind of night #icre
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It's a blasting a silicon chip with a mini torch to remove the passivation kind of night #icre
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Hello and welcome to this #nakeddiefriday -- in which we'll have a look at one EM84P100P by ELAN. Supposedly this is a cordless mouse controller chip.
The die is rather small -- 1.5 by 2.1mm only, so I had to, and could, use a 60x objective to get a decent picture.
I'll do a short thread.
SiPron page: https://siliconpr0n.org/archive/doku.php?id=infosecdj:elan:em84p100p
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Hello and welcome to this #nakeddiefriday -- in which we'll have a look at one EM84P100P by ELAN. Supposedly this is a cordless mouse controller chip.
The die is rather small -- 1.5 by 2.1mm only, so I had to, and could, use a 60x objective to get a decent picture.
I'll do a short thread.
SiPron page: https://siliconpr0n.org/archive/doku.php?id=infosecdj:elan:em84p100p
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Hey hey hey. It is #nakeddiefriday today, and the guest is another SU chip, a К561ИЕ11 as made by Novosibirsk ZPP. This is an implementation of a 4516, a "presettable 4-bit binary up/down counter".
Note the die image is rotated so power pins are on left and right.
A short thread.
SiPron page: https://siliconprawn.org/archive/doku.php?id=infosecdj:novosib-zpp:k561ie11
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Hey hey hey. It is #nakeddiefriday today, and the guest is another SU chip, a К561ИЕ11 as made by Novosibirsk ZPP. This is an implementation of a 4516, a "presettable 4-bit binary up/down counter".
Note the die image is rotated so power pins are on left and right.
A short thread.
SiPron page: https://siliconprawn.org/archive/doku.php?id=infosecdj:novosib-zpp:k561ie11
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Yo all, it is Friday now where I am, so might as well get the #nakeddiefriday thing going.
Today's guest is the famous NES PPU chip, RP2C07A by Ricoh. What's interesting about this particular sample is that it's very very dead. Many thanks to @root42 for supplying it!
As always, a short thread follows. Why not give this one a boost while you're here? :D
SiPron page for those hi-res maps we all love: https://siliconpr0n.org/archive/doku.php?id=infosecdj:ricoh:rp2c07a
Note the die is oriented the same way Visual 2C02 has it: https://www.nesdev.org/wiki/Visual_2C02
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Yo all, it is Friday now where I am, so might as well get the #nakeddiefriday thing going.
Today's guest is the famous NES PPU chip, RP2C07A by Ricoh. What's interesting about this particular sample is that it's very very dead. Many thanks to @root42 for supplying it!
As always, a short thread follows. Why not give this one a boost while you're here? :D
SiPron page for those hi-res maps we all love: https://siliconpr0n.org/archive/doku.php?id=infosecdj:ricoh:rp2c07a
Note the die is oriented the same way Visual 2C02 has it: https://www.nesdev.org/wiki/Visual_2C02