Room-Temperature Metal Bonding Technology That Facilitates The Fabrication of 3D-ICs & 3D Integration With Heterogeneous Devices


A technical paper titled "Room-Temperature Direct Cu Semi-Additive Plating (SAP) Bonding for Chip-on-Wafer 3D Heterogenous Integration With μLED" was published by researchers at Tohoku University in Japan. Abstract: "This letter describes a direct Cu bonding technology to there-dimensionally integrate heterogeneous dielets based on a chip-on-wafer configuration. 100- μm -cubed blue μ LED... » read more

New Method to Measure, At The Wafer Scale, Direct Bonding Energies (CEA-LETI)


A new technical paper titled "Double cantilever beam bonding energy measurement using confocal IR microscopy" was published by researchers at Univ. Grenoble Alpes, CEA-LETI and SOITEC, Parc Technologique des Fontaines. "A new technique is assessed in order to measure, at the wafer scale, direct bonding energies. It is derived from the standard Double Cantilever Beam (DCB) method and uses int... » read more

Research Bits: Nov. 15


Low temperature 3D bonding Scientists from Osaka University developed a new method for the direct three-dimensional bonding of copper electrodes using silver layers. The method works at low temperatures and does not require external pressure. "Our process can be performed under gentle conditions, at relatively low temperatures and without added pressure, but the bonds were able to withstand... » read more

Big Changes In Materials And Processes For IC Manufacturing


Rama Puligadda, CTO at Brewer Science, sat down with Semiconductor Engineering to talk about a broad set of changes in semiconductor manufacturing, packaging, and materials, and how that will affect reliability, processes, and equipment across the supply chain. SE: What role do sacrificial materials play in semiconductor manufacturing, and how is that changing at new process nodes? Puliga... » read more

Get Ready For Integrated Silicon Photonics


Long-haul communications and data centers are huge buyers of photonics components, and that is leading to rapid advances in the technology and opening new markets and opportunities. The industry has to adapt to meet the demands being placed on it and solve the bottlenecks in the design, development and fabrication of integrated silicon photonics. "Look at the networking bandwidth used across... » read more