Week In Review: Auto, Security, Pervasive Computing


The American Foundries Act, a bipartisan initiative to revive U.S. leadership in the global microelectronics sector, was announced by U.S. Democratic Senator Chuck Schumer from New York. “The economic and national security risks posed by relying too heavily on foreign semiconductor suppliers cannot be ignored, and Upstate New York, which has a robust semiconductor sector, is the perfect place... » read more

Effective Post-TSV-DRIE Wet Clean Process For Through Silicon Via Applications


Deep Reactive Ion Etch (DRIE) processes used to form through silicon vias (TSVs) achieve high aspect ratios by depositing polymer on the vertical sidewalls of the features. This polymer material must be removed before other materials (including dielectric liner, Cu barrier, and Cu) are deposited in the TSVs. Clean processes adapted from Cu damascene integration flows use a combination of oxygen... » read more

Week In Review: Auto, Security, Pervasive Computing


Internet of Things SEMI-FlexTech launched six flexible hybrid electronics (FHE) projects, collaborating with U.S. Army Research Laboratory (ARL), to accelerate innovations in sensor and sensor systems. Participating in the projects are American Semiconductor, Inc., University of Texas El Paso, Tekscan, PARC, Alertgy, and Iowa State University, among others. Some of the projects include develop... » read more

Accelerating Silicon Carbide Power Electronics Devices Into High Volume Manufacturing With Mechanical Dicing System


Silicon carbide (SiC) is a wideband gap semiconductor material that has huge potential to enrich our lives by enabling better technology with improved connectivity and efficiency. It offers many advantages over common silicon (Si) for power applications as it can be doped much higher than silicon to achieve optimal blocking voltage. In addition, SiC high thermal conductivity characteristic enab... » read more

Process To Produce High Aspect Ratio Electroplated Copper Pillars On 300 mm Wafers


This work provides details of a complete and partially optimized process to manufacture high aspect ratio copper pillars with heights of up to 80 µm on 200 and 300 mm wafers. Across wafer uniformity data for all materials and process steps are given. Results will show excellent resist adhesion on copper and electroplating durability. Cross sectional SEM analysis of resist and electroplated pil... » read more

External Resistance Reduction By Nanosecond Laser Anneal In Si/SiGe CMOS Technology


Authors: 1Oleg Gluschenkov, 1Heng Wu, 1Kevin Brew, 2Chengyu Niu, 1Lan Yu, 1Yasir Sulehria, 1Samuel Choi, 22Curtis Durfee, 1James Demarest, 1Adra Carr, 3Shaoyin Chen, 3Jim Willis, 3Thirumal Thanigaivelan, 1Fee-li Lie, 2Walter Kleemeier, and 1Dechao Guo 1IBM Research, 257 Fuller Road, Albany, NY 12203, USA, email: olegg@us.ibm.com 2GLOBALFOUNDRIES Inc., Albany, NY, USA, 3ULTRATECH, a division ... » read more

Intra-Field Stress Impact on Global Wafer Deformation


One of the contributors to layer-to-layer overlay in today’s chip manufacturing process is wafer distortion due to thin film deposition. Mismatch in the film specific material parameters (e.g., thermal expansion coefficients) may result in process-induced warpage of the wafers at room temperature. When these warped wafers are loaded onto the scanner for the next layer exposure, in-plane disto... » read more

One Micron Damascene Redistribution for Fan-Out Wafer Level Packaging Using a Photosensitive Dielectric Material


Authors: Warren W. Flack, Robert Hsieh, Ha-Ai Nguyen Ultratech, a division of Veeco 3050 Zanker Road, San Jose, CA 95134 USA wflack@ultratech.com John Slabbekoorn, Samuel Suhard, Andy Miller IMEC Kapeldreef 75 B-3001 Leuven, Belgium John.Slabbekoorn@imec.be Akito Hiro, Romain Ridremont JSR MICRO NV Technologielaan 8 B-3001 Leuven, Belgium akito.hiro@jsrmicro.be Abstract This... » read more

Low Ripple Notch Filter Designs Using Apodized Thickness Modulation


An apodized discrete layer thickness design method for notch filters is presented. The method produces error tolerant designs with low ripple in the pass band regions without any additional numerical optimization. Sample designs are presented. Multiple approaches have been used in the past for producing notch filters (also called minus filters). The two main approaches can be grouped into ru... » read more

Gaps In 5G Test


Add one more industry to the long list that analysts expect 5G technology to disrupt—test. While the initial versions of this wireless technology will be little more than a faster version of 4G, concern is growing about exactly how to test the second phase of this technology, which will be based upon millimeter wave. A number of fundamental problems need to be addressed. Among them: T... » read more

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