Warpage Of Compression Molded SiP Strips


By Eric Ouyang, Yonghyuk Jeong, JaeMyong Kim, JaePil Kim, OhYoung Kwon, and Michael Liu of JCET; and Susan Lin, Jenn An Wang, Anthony Yang, and Eric Yang of CoreTech System (Moldex3D). Abstract System-in-Package (SiP) technology has been used for a wide range of electronic devices, but the warpage behavior of the package can be difficult to control and predict due to complex manufacturing p... » read more

Chip-Last HDFO (High-Density Fan-Out) Interposer-PoP


Interposer Package-on-Package (PoP) technology was developed and has been in very high-volume production over the last several years for high-end mobile application processors (APs). This is due to its advantages of good package design flexibility, controllable package warpage at room temperature (25°C) and high temperature (260°C), reduced assembly manufacturing cycle time and chip-last asse... » read more

3D-IC: Great Opportunities, Great Challenges


The growing adoption of 2.5D and 3D integrated circuits (3D-ICs) marks a major inflection point in the world of semiconductor design. Electronic designers demand greater integration densities and faster data transfer rates to meet the growing performance requirements of AI/ML, 5G/6G networks and autonomous vehicles as these technologies have outpaced the capabilities of any single chip. 3D-IC t... » read more

Precision Selective Etch Tools Pave The Way For The Next Technology Inflection


Over the past decade, the need for increasingly smaller, denser, more powerful chips has been driving semiconductor manufacturers to move away from planar structures in favor of increasingly complex three-dimensional (3D) structures. Why? Simply put, stacking elements vertically enables greater density. Use of 3D architectures to support advanced logic and memory applications represents the ... » read more

Unsolved Issues In Next-Gen Photomasks


Experts at the Table: Semiconductor Engineering sat down to discuss optical and EUV photomasks issues, as well as the challenges facing the mask business, with Naoya Hayashi, research fellow at DNP; Peter Buck, director of MPC & mask defect management at Siemens Digital Industries Software; Bryan Kasprowicz, senior director of technical strategy at Hoya; and Aki Fujimura, CEO of D2S. What f... » read more

A Sub-1 Hz Resonance Frequency Resonator Enabled By Multi-Step Tuning For Micro-Seismometer


We propose a sub-1 Hz resonance frequency MEMS resonator that can be used for seismometers. The low resonance frequency is achieved by an electrically tunable spring with an ultra-small spring constant. Generally, it is difficult to electrically fine-tune the resonance frequency at a near-zero spring constant because the frequency shift per voltage will diverge at the limit of zero spring const... » read more

Manufacturing Bits: Feb. 15


Strong plastics The Massachusetts Institute of Technology has developed a new material that is stronger than steel but is light as plastic. The new material, which can be made in large quantities, involves a two-dimensional polymer that self-assembles into sheets. The material’s Young modulus—or a measure of how much force it takes to deform a material—is between four and six times gr... » read more

Week In Review: Manufacturing, Test


Fab tools Lam Research has rolled out a new suite of selective etch products for use in developing next-generation technologies, such as gate-all-around (GAA) transistors. In the fab, selective etch helps chipmakers with complex structures. These etch tools provide selective and precision etching without modifying or causing damage to other critical material layers. Composed of three new... » read more

Manufacturing Bits: Feb. 7


Design tools for solid-state batteries Oak Ridge National Laboratory has devised a new tool designed to accelerate the development of energy-dense solid-state batteries. The tool, called the Solid-State Battery Performance Analyzer and Calculator (SolidPAC), enables researchers to assess the impact of battery designs and choice of cell components for solid-state batteries. It can be used to... » read more

Week In Review: Manufacturing, Test


Government policy The Government of Quebec and IBM have announced a new partnership to establish Quebec as a technology hub in the development of quantum computing, artificial intelligence, semiconductors and high-performance computing. The two entities have formed the Quebec-IBM Discovery Accelerator. The new technology hub aims to focus on developing new projects, collaborations, and skills-... » read more

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