Warpage in wafer-level packaging: a review of causes, modelling, and mitigation strategies
Wafer-level packaging (WLP) is a pivotal semiconductor packaging technology that enables heterogeneously integrated advanced semiconductor packages with high-density electrical interconnections through its efficient and highly reliable manufacturing ...
Pallavi Praful, Chris Bailey
doaj +1 more source
Stress control in trench field-plate power MOSFETs and its impact on on-resistance reduction
The limitations regarding lateral cell pitch narrowing and on-resistance reduction were investigated. Trench field plate MOSFETs feature deep trenches with thick oxide films.
Hiroaki Kato +2 more
doaj +1 more source
Method for distortion correction of multi-layered surface reconstruction using time-gated wavefront sensing approach [PDF]
In order to estimate the multi-layer surface profile and to detect the inter-layer surfaces defects, gated wavefront sensing approach has been proposed in the previous works [1, 2].
Tan C. S. +4 more
doaj +1 more source
Conductive Bonding and System Architectures for High‐Performance Flexible Electronics
This review outlines bonding technologies and structural design strategies that support high‐performance flexible and stretchable electronics. Bonding approaches such as surface‐activated bonding and anisotropic conductive films, together with system‐level architectures including buffer layers and island‐bridge structures, possess distinct mechanical ...
Kazuma Nakajima, Kenjiro Fukuda
wiley +1 more source
Single crystalline silicon solar cells with rib structure
To improve the conversion efficiency of Si solar cells, we have developed a thin Si wafer-based solar cell that uses a rib structure. The open-circuit voltage of a solar cell is known to increase with deceasing wafer thickness if the cell is adequately ...
Shuhei Yoshiba +4 more
doaj +1 more source
Thermal Stress in Multilayered Flexible Solar Cell Circuit With Different Temperatures
This study employs a coupled thermal‐mechanical analysis approach to simulate the deformation behavior of flexible thin‐film solar cell circuits under varying temperature conditions. Stress analysis demonstrates a significant temperature‐induced stress redistribution. Copper bears the maximum thermal stress under low‐temperature conditions.
Chunhao Shi +7 more
wiley +1 more source
Numerical Simulation on the Warpage of Reconstructed Wafer During Encapsulation Process
Abstract At present, the general fan-out package generally uses the molding process and uses epoxy molding compound (EMC) material to complete the reconstruction of wafer, but it is not friendly to small-size chips and high fan-out ratio packaging types. In order to solve the problem of small size and high fan-out ratio and other fan-out
Hu Zhen +6 more
openaire +1 more source
Process-Induced Warpage Behavior in Backside Power Delivery Network Fabrication
As semiconductor devices continue to scale, backside power delivery networks (BSPDNs) have emerged as a promising alternative to conventional front-side power delivery networks (FSPDNs), offering improved routing flexibility and power integrity. However,
Seong-Ji Min +8 more
doaj +1 more source
Theoretical studies of silicon hetero-junction solar cells with rib structure
The open-circuit voltage of a solar cell is known to increase with deceasing wafer thickness if the cell is adequately passivated. However, it is not easy to handle very thin wafers because they are brittle and are subject to warpage.
Yukimi Ichikawa +3 more
doaj +1 more source
Universal Solvent Escape Strategies for Efficient Curing of Hydrogen‐Bond‐Rich 3D Printing Inks
This study developed a new 3D printing method for hydrogen‐bonded polymers by combining solvent replacement, nanoparticles, and optimized printing paths. This allows fast, precise scaffold fabrication. The scaffolds can be easily customized and release therapeutic agents slowly through protonation, enabling personalized bone, blood vessel, and nerve ...
Jie Chen +11 more
wiley +1 more source

