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Computational SRAM (C-SRAM) Solution Combining In- and Near-Memory Computing Approaches


New academic paper titled "Towards a Truly Integrated Vector Processing Unit for Memory-bound Applications Based on a Cost-competitive Computational SRAM Design Solution", from researchers at Univ. Grenoble Alpes, CEA-LIST. Abstract "This article presents Computational SRAM (C-SRAM) solution combining In- and Near-Memory Computing approaches. It allows performing arithmetic, logic, and co... » read more

Using Symbolic Simulation For SRAM Redundancy Repair Verification


Innovations in Very Deep Sub-Micron technologies, such as the advent of three-dimensional FinFET transistor structures, have facilitated the implementation of very large embedded SRAM memories in System-on-Chip (SoC) designs to the point where they occupy the majority of the chip die area. To get maximum memory capacity on the smallest die area, SRAM bitcells are designed with the minimum possi... » read more

Outlook: DRAM, NAND, Next-Gen Memory


Jim Handy, director at Objective Analysis, sat down with Semiconductor Engineering to talk about the 3D NAND, DRAM and next-generation memory markets. What follows are excerpts of that discussion. SE: How would you characterize the NAND market thus far in 2021? Handy: All chips are seeing unusual strength in 2021, but NAND flash and DRAM are doing what they usually do by exhibiting more e... » read more

Challenges With Chiplets And Packaging


Semiconductor Engineering sat down to discuss IC packaging technology trends, chiplets, shortages and other topics with William Chen, a fellow at ASE; Michael Kelly, vice president of advanced packaging development and integration at Amkor; Richard Otte, president and CEO of Promex, the parent company of QP Technologies; Michael Liu, senior director of global technical marketing at JCET; and Th... » read more

New Memories Add New Faults


New non-volatile memories (NVM) bring new opportunities for changing how we use memory in systems-on-chip (SoCs), but they also add new challenges for making sure they will work as expected. These new memory types – primarily MRAM and ReRAM – rely on unique physical phenomena for storing data. That means that new test sequences and fault models may be needed before they can be released t... » read more

SVT (Six Stacked Vertical Transistors) SRAM Cell Architecture Introduction: Design And Process Challenges Assessment


This paper presents a new design architecture for advanced logic SRAM cells using six vertical transistors (with carrier transport along the Z direction), stacked one on top of each other. Virtual fabrication technology was used to identify different process integration schemes to enable the fabrication of this architecture with a competitive XY footprint at an advanced logic node: a unit cell ... » read more

Overcoming Challenges In Next-Generation SRAM Cell Architectures


Static Random-Access Memory (SRAM) has been a key element for logic circuitry since the early age of the semiconductor industry. The SRAM cell usually consists of six transistors connected to each other in order to perform logic storage and other functions. The size of the 6T (6 Transistors) SRAM cell has shrunk steadily over the past decades, thanks to Moore’s Law and the size reduction of t... » read more

SVT: Six Stacked Vertical Transistors


This paper presents a new design architecture for advanced logic SRAM cells using six vertical transistors (with carrier transport along the Z direction), stacked one on top of each other. Virtual fabrication technology was used to identify different process integration schemes to enable the fabrication of this architecture with a competitive XY footprint at an advanced logic node: a unit cell ... » read more

Domain-Specific Memory


Domain-specific computing may be all the rage, but it is avoiding the real problem. The bigger concern is the memories that throttle processor performance, consume more power, and take up the most chip area. Memories need to break free from the rigid structures preferred by existing software. When algorithms and memory are designed together, improvements in performance are significant and pr... » read more

MRAM Evolves In Multiple Directions


Magnetoresistive RAM (MRAM) is one of several new non-volatile memory technologies targeting broad commercial availability, but designing MRAM into chips and systems isn't as simple as adding other types of memory. MRAM isn’t an all-things-for-all-applications technology. It needs to be tuned for its intended purpose. MRAMs targeting flash will not do as well targeting SRAMs, and vice vers... » read more

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