Current Issue : October - December Volume : 2020 Issue Number : 4 Articles : 5 Articles
SDRAM (Synchronous DRAM) has become the memory standard in many\ndigital system designs, because of low price and high read/write speed. In this\npaper, Based on the analysis of the working principle and characteristics of\nSDRAM, an SDRAM controller design method is proposed based on field programmable\nlogic gate array FPGA. In order to reduce resource consumption\nand increase the read and write speed of SDRAM, the performance control of\nSDRAM is further optimized. We designed SDRAM controller by using Verilog\nHDL and Altera Quartus II 14.1 software, and simulated about this design\nwith Model Sim-Altera 10.3c software. Then we verified this design by\nusing Cyclone V 5CSEMA5F31C6 FPGA in DE1-SoC development board.\nThe verification results show that the SDRAM is initialized successfully, the\ninput and output data are completely consistent, and it has stable refresh and\nread and write functions. The SDRAM controller design meets the requirements....
The interest in large-scale integrated (LSI) microfluidic systems that perform highthroughput\nbiological and chemical laboratory investigations on a single chip is steadily growing.\nSuch highly integrated Labs-on-a-Chip (LoC) provide fast analysis, high functionality, outstanding\nreproducibility at low cost per sample, and small demand of reagents. One LoC platform technology\ncapable of LSI relies on specific intrinsically active polymers, the so-called stimuli-responsive\nhydrogels. Analogous to microelectronics, the active components of the chips can be realized by\nphotolithographic micro-patterning of functional layers. The miniaturization potential and the\nintegration degree of the microfluidic circuits depend on the capability of the photolithographic\nprocess to pattern hydrogel layers with high resolution, and they typically require expensive\ncleanroom equipment. Here, we propose, compare, and discuss a cost-efficient do-it-yourself (DIY)\nphotolithographic set-up suitable to micro-pattern hydrogel-layers with a resolution as needed for\nvery large-scale integrated (VLSI) microfluidics. The achievable structure dimensions are in the\nlower micrometer scale, down to a feature size of 20..................
Ternary complementary metal-oxide-semiconductor technology has been spotlighted\nas a promising system to replace conventional binary complementary metal-oxide-semiconductor\n(CMOS) with supply voltage (VDD) and power scaling limitations. Recently, wafer-level integrated\ntunneling-based ternary CMOS (TCMOS) has been successfully reported. However, the TCMOS\nrequires large VDD.........................
In this research, a new application of reduced graphene oxide (rGO) for a complementary\nmetal-oxide-semiconductor (CMOS)-MEMS infrared (IR) sensor and emitter is proposed. Thorough\ninvestigations of IR properties including absorption and emission were proceeded with careful\ncalibration and measurement with a CMOS thermoelectric sensor. The thermocouples of the sensor\nconsist of aluminum and n-polysilicon layers which are fabricated with the TSMC 0.35................
DNA sequencing is a critical functionality in biomedical research, and technical advances\nthat improve it have important implications for human health. Novel methods by which sequencing\ncan be accomplished in more accurate, high-throughput, and faster ways are in development.\nHere, we review VLSI biosensors for nucleotide detection and DNA sequencing. Implementation\nstrategies are discussed and split into function-specific architectures that are presented for reported\ndesign examples from the literature. Lastly, we briefly introduce a new approach to sequencing using\nGate All-Around (GAA) nanowire Metal Oxide Semiconductor Field Effect Transistors (MOSFETs)\nthat has significant implications for the field....
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