A5086478143- VLSI and Analog Circuit Testing
- Advancements in Photolithography Techniques
- 3D Printing in Biomedical Research
- Microfluidic and Bio-sensing Technologies
- Additive Manufacturing and 3D Printing Technologies
- Algorithms and Data Compression
- Integrated Circuits and Semiconductor Failure Analysis
- Formal Methods in Verification
- Noise Effects and Management
- 2D Materials and Applications
- Molecular Junctions and Nanostructures
- Microbial Inactivation Methods
- Hearing Loss and Rehabilitation
- Innovative Microfluidic and Catalytic Techniques Innovation
- Industrial Vision Systems and Defect Detection
- Radiation Effects in Electronics
- VLSI and FPGA Design Techniques
- Electrowetting and Microfluidic Technologies
- Transgenic Plants and Applications
- Biosensors and Analytical Detection
- Interconnection Networks and Systems
- EEG and Brain-Computer Interfaces
- Machine Learning and Algorithms
- Hearing, Cochlea, Tinnitus, Genetics
- Biomedical and Engineering Education
Stanford University
2022-2025
Indian Institute of Technology Gandhinagar
2024
Georgia Institute of Technology
2018-2020
Synopsys (United States)
2004-2009
Synopsys (Switzerland)
2005-2007
Carnegie Mellon University
2005
University of California, Berkeley
2003
Abstract Direct ink writing is a 3D printing method that compatible with wide range of structural, elastomeric, electronic, and living materials, it continues to expand its uses into physics, engineering, biology laboratories. However, the large footprint, closed hardware software ecosystems, expense commercial systems often hamper widespread adoption. This work introduces compact, low‐cost, multimaterial, high‐throughput direct printer platform detailed assembly files instructions provided...
The centrifuge is an essential tool for many aspects of research and medical diagnostics. However, conventional centrifuges are often inaccessible outside standard laboratory settings, such as remote field sites, because they require a constant external power source can be prohibitively costly in resource-limited settings Science, technology, engineering, mathematics (STEM)-focused programs. Here we present the 3D-Fuge, 3D-printed hand-powered centrifuge, novel alternative to benchtop...
Combining the sustainable culture of billions human cells and bioprinting wholly cellular bioinks offers a pathway toward organ-scale tissue engineering. Traditional 2D methods are not inherently scalable due to cost, space, handling constraints. Here, suspension induced pluripotent stem cell-derived aggregates (hAs) is optimized using an automated 250 mL stirred tank bioreactor system. Cell yield, aggregate morphology, pluripotency marker expression maintained over three serial passages in...
Simulation and Boolean satisfiability (SAT) checking are common techniques used in logic verification. This paper shows how simulation (S&S) can be tightly integrated to efficiently compute flexibilities a multilevel network, including the following: 1) complete "don't cares" (CDCs); 2) sets of pairs functions distinguished (SPFDs); 3) candidate nodes for resubstitution. These network optimization change structure while preserving its functionality. In first two applications, quickly...
In current manufacturing processes, certain layout configurations are likely to have reduced yield and/or reliability due increased susceptibility stress effects or poor tolerance processes like lithography. These problematic need be efficiently detected and eliminated from a design enable better yield. this paper, such called processhotspots an efficient scalable algorithm is proposed detect process-hotspots in given layout.
Electroporation is a basic yet powerful method for delivering small molecules (RNA, DNA, drugs) across cell membranes by application of an electrical field. It used many diverse applications, from genetically engineering cells to drug- and DNA-based vaccine delivery. Despite this broad utility, the high cost electroporators can keep approach out reach budget-conscious laboratories. To address need, we develop simple, inexpensive, handheld electroporator inspired derived common household...
In current manufacturing processes, certain layout configurations are likely to have reduced yield and/or reliability due increased susceptibility stress effects or poor tolerance processes like lithography. These problematic need be efficiently detected and eliminated from a design enable better yield. this paper, such called process-hotspots an efficient scalable algorithm is proposed detect in given layout. The concept of range pattern introduced used accurately compactly represent these...
A program called MVSIS (Multi-Valued Sequential Interactive Synthesis) has been developed which optimizes multi-level multi-valued (MV) networks. We describe what such a network is and the capabilities contained in MVSIS. modeled after SIS (Sequential Synthesis), synthesizes binary networks, but logic of that all variables can be multi-valued, each with its own range. Included are almost technology-independent transformations for combinational sequential synthesis as well specific to nodes,...
As very large scale integration (VLSI) technology advances to smaller and nodes, certain layout configurations tend have reduced yield and/or reliability during manufacturing processes because of increased susceptibility stress effects or poor tolerance like lithography. Such are called process-hotspots, which represented here accurately compactly by range patterns. The concept a pattern is introduced represent set similar patterns compactly. Since low-yielding directly represented, it can...
Direct ink writing is a 3D printing method that compatible with wide range of structural, elastomeric, electronic, and living materials, it continues to expand its uses into physics, engineering, biology laboratories. However, the large footprint, closed hardware software ecosystems, expense commercial systems often hamper widespread adoption. Here, we present compact, simple-to-build, low-cost, multimaterial, high-throughput direct printer platform detailed assembly files instructions...
Abstract Rheological measurements with in situ visualization can elucidate the microstructural origin of complex flow behaviors an ink. However, existing commercial rheometers suffer from high costs, need for dedicated facilities microfabrication, a lack design flexibility, and cabling that complicates operation sterile or enclosed environments. To address these limitations, low‐cost ($300) visual, in‐expensive wireless rheometer (VIEWR) using 3D‐printed off‐the‐shelf components is...
Hearing aids are the primary tool in non-medical rehabilitation for individuals with hearing loss. While costs of electronic components have reduced substantially, cost a aid has risen steadily to point that it become unaffordable majority population Age-Related Loss (ARHL) especially those residing low- and middle-income countries. Here, we present an ultra-low-cost, affordable accessible device ('LoCHAid'), specifically targeted towards treating ARHL elderly patients. The LoCHAid 98 cents...
Alternating-aperture phase shift masking (AAPSM), a form of strong resolution enhancement technology (RET) is used to image critical features on the polysilicon layer at smaller nodes. This imposes additional constraints layouts beyond traditional design rules. Of particular note requirement that all be flanked by opposite-phase shifters, while shifters obey minimum width and spacing requirements. A layout called phase-assignable if it satisfies this requirement. Phase conflicts between have...
As feature sizes shrink, it will be necessary to use AAPSM (alternating-aperture phase shift masking) image critical features, especially on the polysilicon layer. This imposes additional constraints layouts beyond traditional design rules. Of particular note is requirement that all features flanked by opposite-phase shifters, while shifters obey minimum width and spacing requirements. A layout called phase-assignable if satisfies this requirement. If a not phase-assignable, conflicts have...
Alternating-aperture phase shift masking (AAPSM), a form of strong resolution enhancement technology (RET) is used to image critical features on the polysilicon layer at smaller nodes. This imposes additional constraints layouts beyond traditional design rules. Of particular note requirement that all be flanked by opposite-phase shifters, while shifters obey minimum width and spacing requirements. A layout called phase-assignable if it satisfies this requirement. Phase conflicts between have...
The centrifuge is an essential tool for many aspects of research and medical diagnostics. However, conventional centrifuges are often inaccessible outside laboratory settings, such as remote field sites, require a constant external power source, can be prohibitively costly in resource-limited settings STEM-focused programs. Here we present the 3D-Fuge, 3D-printed hand-powered centrifuge, novel alternative to standard benchtop centrifuges. Based on design principles paper-based this...
This study delves into the improved transport properties of 2D MoS <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> devices with metal contacts achieved through substitutional doping or adsorbed metals. We employed ab initio techniques to thoroughly examine electronic behavior. The incorporation metals is aimed at enhancing device performance and streamlining charge carrier transport. Our results illuminate influence on properties,...
Wire removal is a technique by which the total number of wires between individual circuit nodes reduced, either removing or replacing them with other new wires. The wire techniques we describe in this paper are based on both binary and multivalued sets pairs functions to be distinguished (SPFDs). Recently, it was shown that design style multilevel network approximately equal-sized programmable logic arrays (PLAs) results dense, fast, crosstalk-resistant layout. This describes application...
The interface properties between gold (Au) contacts and molybdenum disulfide (MoS2) are critical for optimizing the performance of semiconductor devices. This study investigates impact metal dopants (D) on transport MoS2 devices with top Au contacts, aiming to reduce contact resistance enhance device performance. Using density functional theory (DFT) non-equilibrium Green's function (NEGF)- based first-principles calculations, we examine structural, electronic, quantum Au-contacted,...
Abstract Recent breakthroughs in biofabrication have enabled the development of engineered tissues for various organ systems, supporting applications drug testing and regenerative medicine. However, current approaches do not allow dynamic mechanical maturation tissue 3D. Although uniaxial mechanostimulation techniques shown promise generating anisotropic tissues, they fail to recapitulate biomechanics complex tissues. As a result, existing biofabricated lack ability replicate 3D alignment...
Electroporation is a basic yet powerful method for delivering small molecules (RNA, DNA, drugs) across cell membranes by application of an electrical field. Due to its vital role, electroporation has wide applicability from genetically engineering cells, drug- and DNA-based vaccine delivery. Despite broad applications in biological research, the high cost electroporators obstacle many budget-conscious laboratories. To address this need, we describe simple, inexpensive, hand-held...
In deep submicron feature sizes continue to shrink aggressively beyond the natural capabilities of 193 nm lithography used produce those features thanks all innovations in field resolution enhancement techniques (RET). With reduced and tighter pitches die level variations become an increasingly dominant factor determining manufacturing yield. Thus a prediction design-specific that impact intra-die variability correspondingly its yield is extremely valuable as it allows for altering such...
In the digital VLSI cycle, logic transformations are often required to modify design meet different synthesis and optimization goals. Logic on sequential circuits hard perform due vast underlying solution space. This paper proposes an SPFD-based transformation methodology tackle problem with no sacrifice performance. It first presents efficient approach construct approximate SPFDs (aSPFDs) for circuits. Then, it demonstrates algorithm using aSPFDs desirable both combinational don't cares....