On-Die And In-Package Interconnects: eBook


We live in the Information Age, but if information cannot get to where it's intended to go, it does no good. And the way information gets from here to there is through interconnects. This report focuses on different interconnect structures, such as lines, vias, buses, and networks-on-chip, and how they’re constructed. As always, we consider the design, test, reliability, and security impli... » read more

Five Questions To Ask When Selecting A Temporary Bonding And Debonding System


High-bandwidth memory blocks (HBM) memory, microprocessors, field-programmable gate arrays (FPGA), AI accelerators, and other devices used in advanced system-level packaging all rely on temporary bonding and debonding systems to shrink their footprint. Understanding which properties play the most crucial role in device reliability and efficient production will ensure you are maximizing your yie... » read more

Research Bits: July 1


Copper-to-copper bonding for GaN integration Researchers from MIT, Georgia Tech, and Air Force Research Laboratory propose a bonding process to integrate gallium nitride (GaN) transistors onto standard silicon CMOS chips. They used the process to create a power amplifier. “We wanted to combine the functionality of GaN with the power of digital chips made of silicon, but without having to ... » read more

Backside Power Delivery Nears Production


Backside power delivery is being called a game changer — a breakthrough technology and the next great enabler in CMOS scaling. It promises significant PPA advances, including faster switching, lower voltage droop, and reduced power supply noise. And it is poised to deliver these benefits below the 2nm node, despite a substantial disruption in front-end processes from lithography pattern di... » read more

Low-Temperature Solid-Liquid Interdiffusion Bonding For High-Density Interconnect Applications


A new technical paper titled "Facilitating Small-Pitch Interconnects with Low-Temperature Solid-Liquid Interdiffusion Bonding" was published by researchers at Aalto University in Finland. Abstract "The trend for 3D heterogeneous integration drives the need for a low-temperature bonding process for high-density interconnects (HDI). The Cu-Sn-In based solid-liquid interdiffusion (SLID) is a p... » read more

LAB Flip Chip Reflow Process Robustness Prediction By Thermal Simulation


By Gabriel Chang and Ricky Zang Nowadays, there are many interconnects in IC chips. One of the packaging goals is to connect an IC to the next level of subsystem circuitry (package substrates/print circuit boards). Mass reflow (MR) of solder joints is a widely adapted and stable process in the industry. The applications of MR include flip chip, ball mounting, surface mount technology (SMT), ... » read more

Reverse Laser Assisted Bonding (R-LAB) Technology For Chiplet Module Bonding On Substrate


By SeokHo Na, MinHo Gim, GaHyeon Kim, DongSu Ryu, DongJoo Park, and JinYoung Kim In the recent semiconductor market, there are many applications including smartphone, tablets, central processing units (CPUs), artificial intelligence (AI), data cloud and more that are expecting and experiencing rapid growth. As most of these applications require high performance, single-die Flip Chip packages... » read more

Nine Essential Criteria To Achieve A Successful Bonding Process


A photosensitive permanent bonding material enables the creation of high-quality permanent bonds between dissimilar materials used in the creation of MEMS and sensors. Having a thorough understanding of the materials and product performance is crucial to the success of the end application. In this article, we explore nine criteria used to evaluate a polymeric photosensitive permanent bonding ma... » read more

A Technical Guide To Selecting A Photosensitive Permanent Bonding Material


A photosensitive permanent bonding material enables the creation of high-quality permanent bonds between dissimilar materials used in the creation of MEMS and sensors. Having a thorough understanding of the materials and product performance is crucial to the success of the end application. In this article, we explore nine criteria used to evaluate a polymeric photosensitive permanent bonding ma... » read more

Next Gen Laser Assisted Bonding (LAB) Technology


In the semiconductor market, there are many applications including smartphone, tablets, central processing units (CPUs), artificial intelligence (AI), data cloud and more that are expecting rapid growth. Among them, CPU data processing, AI and data cloud require much higher power consumption than smart phones or tablets. For the higher power applications, Flip Chip ball grid array (FCBGA) or 2.... » read more

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