![Case No 3 [26-10-2017] - Dead Lexar Professional 8GB SD Card With SM2703F Controller And TSOP48 Micron NAND Flash Chip](files/NAND Flash Data Recovery Labs [ Chandigarh India ] - Photo of Lexar 8GB TSOP48 Dead SD Card_m.jpg "Case No 3 [26-10-2017] - Dead Lexar Professional 8GB SD Card With SM2703F Controller And TSOP48 Micron NAND Flash Chip")
NAND Research
What Are We Talking About Here Well First of All Please Understand What We Are Talking About .We Are Talking About [ Memory Chips ] And The Data These Memory Chips Have in Them .These Are Non Volatile Means " You Remove the Power And Data Stored Remains Inside these Memory Chips " . Lets See How These Folks looks .
TSOP48 Pin NAND Flash Memory Chip
LGA-52 Pin NAND Flash Memory Chip
BGA-152 Pin NAND Flash Memory Chip
One Of The Many Kinds Of eMMC Memory Used In Mobile Phones
Well other Then The Exception of the Last Picture Above The " eMMC " None Of These Above Memory Chips Can Work Themself ,They Need a Controller That Connects To Them On One Side And The Other Side Is Connected To a Device Like a USB Port Of a Computer Or SD Interface Used In Many Flash Cards Etc Via a Controller .This is How a Controller Chip Looks
So Interfacing The Controller With The Memory IC Make a Device Like a USB Pen Drive , Compact Flash Card , Secure Digital Card " SD Card " And Micro SD Card .So Sometimes Either The PCB of This Device Or The Components Or The Controller Itself Gets Bad And Then We Extract The NAND Flash Memory IC From This Device And Read The Memory IC ,Then We Reverse Engineer The Way The Controller Stored Data And Get Your Data Out .This is In The Broader Way What We Do And What This Business Is All About .
!!! Introducing Monolith NAND Flash Memory Devices !!!
We All Know That USB Pen Drives Have Become Smaller Then Earlier ,Currently They Look As If They Do Not Follow The Pattern of Seperate Contoller / Memory But Indeed They Do In a Encapsulated Wafer Like Construction That Looks Very Different Then Conventional NAND Flash Devices .But Under The Hood Its The Same Thing ,This is a Example of a Micro SD Card Which is a Monolith Device
This is How a Micro SD Card Looks After Protective Plastic Layer is Scrapped
Under a Microscope / Laser
Technically We Do Have a Controller And NAND Memory In this To .Please Have a Peek Here in this Image .You Can Clearly See The Controller And NAND Memory Component .
So The Added Complexity To The Daily Process is Finding Which Copper Tracks Have What Signal And Then Reading NAND Flash Thats Inside Using a Special Reader When Device is Interfaced To This Tool After Painstaking Soldering Process "Which Has Been Simplified Quite a Liot With Dedicated Monolith Adapters By Various Manufacturers .
