Latest news with #SaptarshiDas
Express Tribune
16-06-2025
- Science
- Express Tribune
Penn State's 2D computer marks breakthrough in post-silicon computing
Engineers at Pennsylvania State University have constructed the world's first computer entirely made from atomically thin two-dimensional materials, bypassing silicon entirely in a step researchers say could pave the way for more compact, efficient electronics. The development process was published in Nature. The new device is a functioning complementary metal-oxide semiconductor (CMOS) computer built using two 2D materials—molybdenum disulfide for n-type transistors and tungsten diselenide for p-type transistors. These transistors are fundamental to regulating current in CMOS circuits, which underpin nearly all modern computing. 'This marks the first time a computer has been built entirely from 2D semiconductors,' said Dr. Saptarshi Das, a professor of engineering at Penn State and the project's lead. He added that while traditional silicon loses performance at atomic scales, 'two-dimensional materials maintain their exceptional electronic properties at these thicknesses." The fabrication process used metal-organic chemical vapour deposition (MOCVD), a technique that produces ultra-thin material layers. The team produced more than 1,000 of each transistor type and adjusted their threshold voltages to create a fully functional CMOS logic circuit. Though the prototype computer currently operates at modest speeds of up to 25 kilohertz—far slower than commercial silicon chips—it represents a proof of concept. 'Our 2D CMOS computer operates at low voltages with minimal power consumption,' said Subir Ghosh, a doctoral researcher and lead author of the study. Designed as a one-instruction-set computer, the prototype is not aimed at immediate commercial use but lays crucial groundwork for future flexible, lightweight, and energy-efficient devices.
Time of India
13-05-2025
- General
- Time of India
NPS achieves 100% results in Class 10 results
Mysuru: NPS International School of the city achieved a 100% pass percentage in the CBSE Class 10 examinations , the results of which were announced on Tuesday. With a score of 97.6%, Mita Prabhu stood first. She scored 488/500 in the exam. Saptarshi Das secured second place with 97% marks. Thanya Prasad secured third rank with 96.8% marks. According to school authorities, nine students secured centum in various subjects. Thirty-five students scored above 90%, while 52 students scored above 85%.
