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Industrial Radiography — CT Scanning for Metrology Applications


Xray technology, more specifically computed tomography (CT), has been adapted for use as an instrument of industrial metrology. Early adopters have quickly recognized the benefits of internal and external nondestructive testing for 3D defect detection and geometric analysis, while those considering adoption may be uncertain how to implement the technology effectively. This study was conducted t... » read more

Automated ESD Protection Verification For 2.5D And 3D ICs


While automated flows for ESD protection verification are well-established for 2D ICs, 2.5D and 3D designs present new challenges in both ESD circuit design and verification. Advanced automated ESD verification methodology accurately and effectively evaluates ESD protection in 2.5/3D IC designs. Ensuring correct and consistent ESD protection in 2.5/3D ICs raises the reliability and product life... » read more

Why Wafer Bumps Are Suddenly So Important


Wafer bumps need to be uniform in height to facilitate subsequent manufacturing steps, but a push for 100% inspection in packaging in mission-critical markets is putting a strain on existing measurement technologies. Bump co-planarity is essentially a measure of flatness. Specifically, it measures the variation in bump height, which may have a target, for example, of about 100 microns. As a ... » read more

Making Chip Packaging More Reliable


Packaging houses are readying the next wave of IC packages, but these products must prove to be reliable before they are incorporated into systems. These packages involve several advanced technologies, such as 2.5D/3D, chiplets and fan-out, but vendors also are working on new versions of more mature package types, like wirebond and leadframe technologies. As with previous products, packaging... » read more

3D Stacking For Performance And Efficiency


Moore’s Law scaling is slowing down and limited improvements in performance, power, area, and cost are available from one process node to the next. As a result, advanced packaging and 3D stacking technologies are taking a front seat as the key drivers for next-generation high-performance energy-efficient designs. These types of system-in-package (SiP) technologies require designers to reima... » read more

Brazil Paves New Semiconductor Path


After struggling to get its semiconductor industry off the ground for the last several years, Brazil finally may have found its place in the market with the development of IC design services, memory modules and packaging. Brazil exists well under the radar when it comes to semiconductors. But with little or no fanfare, the nation over the years has been trying to build fabs, assemble chips a... » read more

Momentum Builds For Advanced Packaging


The semiconductor industry is stepping up its efforts in advanced packaging, an approach that is becoming more widespread with new and complex chip designs. Foundries, OSATs and others are rolling out the next wave of advanced packaging technologies, such as 2.5D/3D, chiplets and fan-out, and they are developing more exotic packaging technologies that promise to improve performance, reduce p... » read more

Redefining The Power Delivery Network


Reliably getting power around a package containing multiple dies, potentially coming from multiple sources, or implemented in diverse technologies, is becoming much more difficult. The tools and needed to do this in an optimized manner are not all there today. Nevertheless, the industry is confident that we can get there. For a single die, the problem has evolved slowly over time. "For a ... » read more

Advanced Packaging Makes Testing More Complex


The limits of monolithic integration, together with advances in chip interconnect and packaging technologies, have spurred the growth of heterogeneous advanced packaging where multiple dies are co-packaged using 2.5D and 3D approaches. But this also raises complex test challenges, which are driving new standards and approaches to advanced-package testing. While many of the showstopper issues... » read more

Manufacturing Bits: June 30


1μm pitch wafer bonding At the recent IEEE Electronic Components and Technology Conference (ECTC), Imec presented a paper on a fine-pitch hybrid wafer-to-wafer bonding technology for heterogeneous integration. Imec described a way to enable hybrid bond pitches down to 1μm using a novel Cu/SiCN (copper/silicon-carbon-nitrogen) surface topography. Today, the industry is developing or shi... » read more

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