Unknowns And Challenges In Advanced Packaging


Dick Otte, CEO of Promex Industries, sat down with Semiconductor Engineering to talk about unknowns in material properties, the impact on bonding, and why environmental factors are so important in complex heterogeneous packages. What follows are excerpts of that conversation. SE: Companies have been designing heterogeneous chips to take advantage of specific applications or use cases, but th... » read more

Research Bits: Jan. 17


Ionic circuit for neural nets Researchers at Harvard University and DNA Script developed an ionic circuit comprising hundreds of ionic transistors for neural net computing. While ions in water move slower than electrons in semiconductors, the team noted that the diversity of ionic species with different physical and chemical properties could be harnessed for more diverse information process... » read more

New Material for Printing At the Nanoscale, Strong & Light (Stanford/Northwestern)


A new technical paper titled "Mechanical nanolattices printed using nanocluster-based photoresists" was published by researchers at Stanford University and Northwestern University. The researchers have developed a new material for nanoscale 3D printing to be used for drones, microelectronics and satellites, demonstrating that "the new material is able to absorb twice as much energy than othe... » read more

Research Bits: March 1


Large-scale phased array Researchers at Princeton University developed a large-scale high-frequency antenna array using thin-film materials. “To achieve these large dimensions, people have tried discrete integration of hundreds of little microchips. But that’s not practical — it’s not low-cost, it’s not reliable, it’s not scalable on a wireless systems level,” said senior stud... » read more

Power/Performance Bits: Jan. 25


Nanoscale 3D optics Researchers at Rice University and University of Houston are using 3D printing to build nanostructures of silica for micro-scale electronic, mechanical, and photonic devices. “It’s very tough to make complicated, three-dimensional geometries with traditional photolithography techniques,” said Jun Lou, a professor of materials science and nanoengineering at Rice. �... » read more

Power/Performance Bits: Jan. 18


3D printed custom wearables Researchers from the University of Arizona created a 3D printed wearable that can operate continuously through wireless power to track body temperature and muscle deformation during exercise. Based on 3D body scans of the wearer, the medical-grade 'biosymbiotic device' can be custom printed to conform to a user's skin without the need for adhesives, which can irr... » read more

Manufacturing Bits: Dec. 21


Tiny electronic fountain pens Karlsruhe Institute of Technology (KIT) and Taiyuan University of Technology have developed what resembles a tiny electronic fountain pen, a technology that can pattern and deposit small structures on surfaces. The system from KIT and Taiyuan University is actually a high-precision tabletop microplotter, which is used to print or deposit materials for printed e... » read more

3D Printing For More Circuits


After several years of experimentation, and growing success in volume manufacturing for some use cases, technologies for 3D printing of electronic circuits are becoming more common. Some innovations in processes and materials are moving these technologies closer to mainstream electronics manufacturing. Christopher Tuck, professor of material science at the University of Nottingham, observed ... » read more

Reaching silicon-based NEMS performances with 3D printed nanomechanical resonators


Abstract: "The extreme miniaturization in NEMS resonators offers the possibility to reach an unprecedented resolution in high-performance mass sensing. These very low limits of detection are related to the combination of two factors: a small resonator mass and a high quality factor. The main drawback of NEMS is represented by the highly complex, multi-steps, and expensive fabrication process... » read more

Multicolored Nanocolloidal Hydrogel Inks For Anti-Counterfeiting


Abstract "Nanocolloidal gels are emerging as a promising class of materials with applications as inks in 2D and 3D printing. Polymer nanoparticles (NPs) offer many advantages as potential building blocks of nanocolloidal gels, due to the ability to control NP dimensions, charge, surface chemistry, and functionality; however, their applications as inks in printing are yet to be explored. Here, ... » read more

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