What’s Next for 2.5D Packaging?


Interposers and bridges, two of the key elements for interconnecting multiple chips and chiplets in an advanced package, are undergoing fundamental changes in how they're built and assembled. Interposers are becoming thicker and more complex, while bridges are being used to reduce the assembled cost. Both efforts are facing new challenges. Interposers are effectively platforms on which mu... » read more

Reticle Stitching Bumps Up Silicon Interposer Costs


Advanced packaging often relies on silicon interposers to connect chiplets and other components inside a package. The problem is that interposers typically exceed the reticle limit, which adds both complexity and cost. An interposer is essential for 2.5D and 3.5D architectures. As device scaling runs out of steam, chipmakers are decomposing planar SoCs into chiplets and connecting them throu... » read more

Physics Limits Interposer Line Lengths


Electrical interposers provide a convenient surface for mounting multiple chips within a single package, but even though interposer lines theoretically can be routed anywhere, insertion losses limit their practical length. Lines on interposers — and on silicon interposers in particular — can be exceedingly narrow. Having a small cross-section makes such lines resistive, degrading signals... » read more

Overview Of The Current State of the Development Of Curvilinear Masks


A technical paper titled "Curvilinear masks overview: manufacturable mask shapes are more reliably manufacturable" was published by researchers at D2S. The paper covers: The rationale for curvilinear masks The application of the curvilinear inverse lithography technology The state of readiness of the curvilinear mask-making infrastructure, including mask rule checking, metrology, ... » read more

Chip Industry Week In Review


The U.S. Department of Commerce and Amkor Technology signed a deal to provide up to $400 million in funding, under the CHIPS and Science Act, to build a previously announced end-to-end advanced packaging plant. The combined funding is expected to total about $2 billion. The new facility will add some 2,000 jobs in Peoria, Arizona. The SK hynix Board approved its Yongin Semiconductor Cluster... » read more

Precision Patterning Options Emerge For Advanced Packaging


The chip industry is ratcheting up investments in advanced packaging as it strives to keep pace with demands for increased functionality and higher performance, including novel patterning technologies that can reduce costs and speed time to market. Success in advanced packages is partly dependent on effectively managing the interconnectivity between the chips, which requires increasingly pre... » read more

Mapping The Future Of Lithography


The SPIE Advanced Lithography + Patterning (AL+P) Symposium is always an informative event for lithographers, and looking at the Advance Program, it appears that AL+P 2023 will be no exception. The progress being made on key lithographic challenges is consistently of interest to attendees, and there will be many timely presentations that address issues of current significance. For example, r... » read more

Manufacturing Bits: Oct. 11


IC security using AFMs The National Institute of Standards and Technology (NIST) has developed a probe assisted doping technique (PAD), a technology that could help prevent counterfeit chips and electronic devices from entering the market. PAD involves creating a unique ID tag on every chip using an atomic force microscope (AFM). Basically, an AFM system incorporates a cantilever with a tin... » read more

Week In Review: Manufacturing, Test


Fab tools PDF Solutions has entered into a definitive agreement to acquire Cimetrix. Under the terms, PDF will pay a cash amount of $35.0 million, net of cash on Cimetrix’s balance sheet as of closing, and subject to other closing adjustments. With the move, PDF will expand into new markets. Cimetrix is a provider of equipment connectivity products for smart manufacturing and Industry 4.0... » read more

Week In Review: Manufacturing, Test


Top story NVIDIA and SoftBank Group Corp. (SBG) have announced a definitive agreement under which NVIDIA will acquire Arm from SBG and the SoftBank Vision Fund in a transaction valued at $40 billion. Market research Here’s the latest fab equipment forecast from VLSI Research: “The semiconductor equipment market has been very resilient in 2020 despite a very challenging macroeconomic ... » read more

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