tag: FOWLP

Nearly Invisible: Defect Detection Below 5nm
By Gregory Haley - 08 Apr, 2025 - Comments: 0

Detecting sub-5nm defects creates huge challenges for chipmakers, challenges that have a direct impact on yield, reliability, and profitability. In addition to being smaller and harder to detect, defects are often hidden beneath intricate device structures and packaging schemes. Moreover, traditional optical and electrical probing methods, trusted for decades, are proving inadequate against ... » read more

Defect Analysis and Testing Framework For FOWLP Interconnects
By Technical Paper Link - 24 Mar, 2025 - Comments: 0

A new technical paper titled "Defect Analysis and Built-In-Self-Test for Chiplet Interconnects in Fan-out Wafer-Level Packaging" was published by researchers at Arizona State University. Abstract "Fan-out wafer-level packaging (FOWLP) addresses the demand for higher interconnect densities by offering reduced form factor, improved signal integrity, and enhanced performance. However, FOWLP fa... » read more

FOWLP Warpage: Review Of Causes, Modeling And Methodologies For Controlling
By Technical Paper Link - 14 Feb, 2025 - Comments: 0

A new technical paper titled "Warpage in wafer-level packaging: a review of causes, modelling, and mitigation strategies" was published by researchers at Arizona State University. Abstract "Wafer-level packaging (WLP) is a pivotal semiconductor packaging technology that enables heterogeneously integrated advanced semiconductor packages with high-density electrical interconnections through i... » read more

Precision Patterning Options Emerge For Advanced Packaging
By Gregory Haley - 23 Jul, 2024 - Comments: 0

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

Integration Hurdles For Analog And RF In Next-Gen Packages
By Gregory Haley - 23 May, 2024 - Comments: 0

A rapid increase in wireless connectivity and more sensors, coupled with a shift away from monolithic SoCs toward heterogeneous integration, is driving up the amount of analog/RF content in systems and changing the dynamics within a package. Since the early 2000s, the majority of chips used at the most advanced nodes were systems-on-chip (SoCs). All features had to fit into a single planar S... » read more

Photonic Debond: Scalability And Advancements
By Brewer Science - 17 May, 2023 - Comments: 0

Advanced packaging technology has continuously evolved over the past 10-20 years to become a major driving force in improving integrated circuit (IC) performance. This improvement in IC performance is assisted by the ability to place specialized components near each other for shorter interconnects in the IC packages. Temporary bond and debond (TB/DB) is an enabling technique for this work. TB/D... » read more

Mastering FOWLP And 2.5D Design Is Easier Than You Think
By Bill Acito - 22 Nov, 2022 - Comments: 0

IC packaging has come into its own, where once traditional packaging was a “necessary evil,” today’s packaging can add significant value. There is an increase in functional density and flexibility by providing a platform for heterogeneous design assembly. Where designs implemented in an SoC can become too large to yield satisfactorily and too difficult to implement on one process node, pa... » read more

Improving Redistribution Layers for Fan-out Packages And SiPs
By Laura Peters - 15 Sep, 2022 - Comments: 2

Redistribution layers (RDLs) are used throughout advanced packaging schemes today including fan-out packages, fan-out chip on substrate approaches, fan-out package-on-package, silicon photonics, and 2.5D/3D integrated approaches. The industry is embracing a variety of fan-out packages especially because they deliver design flexibility, very small footprint, and cost-effective electrical connect... » read more

Fan-Out Packaging Gets Competitive
By Karen Heyman and Laura Peters - 18 Aug, 2022 - Comments: 0

Fan-out wafer-level packaging (FOWLP) is a key enabler in the industry shift from transistor scaling to system scaling and integration. The design fans out the chip interconnects through a redistribution layer instead of a substrate. Compared to flip-chip ball grid array (FCBGA) or wire bonds, it creates lower thermal resistance, a slimmer package, and potentially lower costs. Yet, if the h... » read more

Study Of Bondable Laser Release Material Using 355nm Energy To Facilitate RDL-First And Die-First Fan-Out Wafer-Level Packaging (FOWLP)
By Brewer Science - 18 May, 2022 - Comments: 0

A thorough evaluation on selecting a bondable laser release material for redistribution layer (RDL)-first and die-first fan-out wafer-level packaging (FOWLP) is presented in this article. Four laser release materials were identified based on their absorption coefficient at 355 nm. In addition, all four of these materials possess thermal stability above 350 °C and pull-off adhesion on a Ti/Cu l... » read more

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