Media

MEC from Uyemura -The Roadmap for High Density & Ultra High Density Circuits.

Uyemura’s Mission is creating and delivering practical solutions to the competitive, operational and environmental challenges our customers face. Together with MEC, we establish new benchmarks for performance, reliability and cost management.

Next-generation RAIG Process

Paper evaluates a novel RAIG formulation using a non-hazardous stabilizer without compromising performance. Novel RAIG electrolyte eliminated gold plate-out, provided excellent deposit uniformity for ENIG and ENEPIG, had corrosion product ratings of zero per IPC-4552B.

Assessing Data Independence and Normality for Statistical Process Control Charts

Data independence and normality are underlying crucial assumptions for SPC charts. Understanding how to evaluate these two before charting data is critical. Methods for checking data independence and normality are reviewed and supported with examples.

Improved Finishing Options Power EV Battery Demand

Rich DePoto explores EV battery manufacturing challenges in an article published by Finishing & Coating. Among Uyemura lab’s high-priority projects: achieving good adhesion of platinum to titanium while building uniform thickness.

Statistical Process Control Charts: Sampling Frequency, Subgroups, and Plans

SPC charts are powerful tools, but determining the appropriate data collection parameters is challenging. Regular review of control chart limits enhances continuous improvement efforts.

Cpk or Ppk? A Look at Using Both Capability Indices

In pursuing quality, "on target with minimal variation," one must eliminate assignable cause variation and reduce common cause variation. Capability indices compare the behavior of a process or product characteristic to customer specifications. Cpk provides an index of short-term actual capability, but can underestimate total variation. Ppk indexes long-term actual performance without this inherent flaw.

Semiconductor Packaging News – Viewpoint 2023

Tony Revier shared observations and predictions for 2023 in the February 23 “Viewpoint,” published by Semiconductor Packaging News. His comments covered the IC substrate marketplace, changing employee mindsets, and supply chain issues, among other topics.

Quality and Continuous Improvement

Quality and continuous improvement are an integral part of the electronics industry. Poor quality is costly. Remediation costs of poor quality can cost a company 25% of its annual sales. Poor quality and the need for high reliability are the catalysts driving continuous improvement today. An in-depth review of quality and continuous improvement is presented.

Via Plating for PWBs

Vias are an integral part of PWB design and manufacturing. They are the means by which different layers of a board are connected. There are three main types of vias: through-hole vias, buried vias, and blind vias.

Minimizing Signal Transmission Loss in High-Frequency Circuits

Semiconductor Packaging News – Viewpoint 2020

Uyemura Vice President, Don Gudeczauskas discusses how smaller form factors, shorter lead times, and harsh environment adaptability continue to push the industry into new territory.

Barrier Properties of an Electroless Deposit of Co-W-P Alloy

Surface Finishes in a Lead Free World

Direct Immersion Gold as a Final Finish

Study of Ni-P / Pd / Au as a Final Finish for Silicon Wafers

Smooth Finish – Satin Nickel Plating Scores in Auto and Other Applications

Characteristics of a Lead and Cadmium Free Electroless Nickel

Under Bump Metallization to Reduce Wafer Processing Costs

Electroless Plating for LTCC Metallization

Neutral Autocatalytic Electroless Gold Plating Process

Uyemura Surface Treatment Process Zeroes in on Tin

Elimination of Whiskers from Electroplated Tin

Electrolytic Nickel-Phosphorus Plating

Innovative Solutions for Leading Edge Designs

Surface Finishing for Lead-Free

Printed Circuit Boards: Final Finish Options

What's New in Vertical Acid Copper Plating for PCB Manufacturing

New Developments in DC Acid Copper for Vertical Plating Tanks