Corrosion Short Courses: Corrosion in Microelectronics and Semiconductor Industry,presented by NACE certified Corrosion Specialist , WebCorr Corrosion Consulting Services.

Corrosion Control and Prevention in Microelectronics and Semiconductor Industry

Course Overview

Corrosion is responsible for more than 50% of microelectronic device failures. It is dependent on the package type, electronic materials, fabrication and assembly processes, and environmental conditions (such as humidity, contaminants, temperature, stress and electrical bias etc.) This course thoroughly and systematically covers the causes and prevention of corrosion in microelectronics and semiconductor industry.

This 2-day corrosion short course can be taken as in-house training course, online course and distance learning course worldwide. It can also be customized to meet the specific needs of your organization.

Course Outline

1 Fundamentals of Corrosion

1.1 Corrosion: what it is

1.2 Impact of Corrosion on society

1.3 Why Do Metals Corrode

1.4 Basic Concepts in Corrosion

1.4.1 Primer in Chemistry

1.4.2 Ionization of Metals in Water

1.4.3 Galvanic Cell and Galvanic Series

1.4.4 the Corrosion Cell

         1.4.5 Potential-pH Diagram
   1.5 Different Forms of Corrosion
   1.6 Corrosion in Atmosphere

1.6.1 Effect of Relative Humidity

1.6.2 Effect of Temperature

1.6.3 Effect of Air Pollutants

2 Corrosion in Microelectronics

2.1 Characteristics of corrosion in microelectronics

2.1.1 Properties of Electronic Materials

2.1.2 Failure modes, defects, mechanisms, and causes

2.1.3 Design and Packaging

2.1.4 The Environment
2.2 Common sources of corrosion in microelectronics

2.2.1 Relative Humidity and Moisture

2.2.2 Temperature

2.2.3 Contaminants

2.2.4 In-Process Sources

2.2.5 Storage and shipping

2.2.6 Human contamination

2.2.7 In-service Contamination

         2.2.8 Electrical bias
   2.3 Common forms of corrosion in microelectronics
         2.3.1 Anodic, Cathodic, and Electrolytic Reactions

2.3.2 Uniform Corrosion
2.3.3 Galvanic Corrosion

         2.3.4 Pitting Corrosion
         2.3.5 Creep Corrosion
         2.3.6 Dendrite Growth
         2.3.7 Fretting
         2.3.8 Stress Corrosion Cracking
         2.3.9 Hydrogen Embrittlement
         2.3.10 Whisker Growth

3 Corrosion in the Assembly of Semiconductor Integrated Circuits

3.1 Major Factors Causing Corrosion

3.2 Chip Corrosion

3.3 Oxidation of Tin and Tin Lead Alloys (Solders)

3.4 Mechanism of Tarnished Leads (Terminations)

3.4.1 Tarnished Leads Caused by a Galvanic Corrosion

3.4.2 Tarnishing due to Chemical Residues

3.4.3 Tarnishing Caused by Base Metal Migration

3.4.4 Tarnishing by Plating Additives

3.5 Controlling Tarnished Leads at the Assembly

3.6 Plague and Plague-like Corrosion

3.6.1 Purple Plague

3.6.2 White Plague

3.6.3 Red Plague

4 Corrosion in Semiconductor Wafer Fabrication

4.1 Corrosion During Fabrication

4.1.1 Metallization and Chlorine-Induced Corrosion

4.1.2 Corrosion Prior to the Metal Lead Etch Process

4.1.3 Corrosion Issues Related to Batch Metal-Etch Systems

4.1.4 Corrosion Issues Related to Single-Wafer Metal-Etch Systems

4.1.5 Solvent Cleanup after Metal Etch

4.2 Corrosion Due to Environmental Effects

5 Corrosion Control and Prevention in Microelectronics

    5.1 Materials Selection in Microelectronics
    5.2 Design
    5.3 Use of Packaging Materials in Microelectronics
    5.4 Control of Environment in Microelectronics

6 Corrosion Test

    6.1 Accelerated Tests
    6.2 AC Impedance
    6.3 Galvanic Effect
    6.4 Corrosion Rate Determination
    6.5 Service Life Prediction

6.6 CIPAL-Compass: Copper and Intermetallics Induced Pitting in Aluminum Alloys
- Modeling, Life Prediction and Process Control

7. Exercises and Case Studies

Who Should Attend

Engineers, designers, and QA/QC personnel working in the microelectronics and semiconductor industry.

Registration for This Corrosion Course

Click here to register for this corrosion course online, or
Click here to download this corrosion course brochure with registration form in PDF format.

In-House Training Corrosion Courses

If you are concerned with corrosion in your business, in-house training is a great solution to train a group of employees from design, production, operation, quality assurance, inspection and maintenance, and technical sales and support on corrosion control and corrosion prevention technology. The contents of all corrosion courses can be customized to fit your organization's needs.

There is no minimum or maximum number of participants required for in-house training corrosion courses. We conduct the in-house training corrosion course at your company's premises and at a time convenient to your company. Requests for in-house training corrosion courses from overseas countries are also welcome.

Click here to contact us for a quotation.

Corrosion Course-On-Demand

All our publicly scheduled corrosion short courses are conducted once a year. However, you do not need to wait for one year if you have missed any of the publicly scheduled corrosion courses as we have this unique corrosion course-on-demand scheme: we will conduct the course just for you on an one-on-one basis at a time and in a location convenient to you. This option costs significantly less than a full-scale in-house training program.

Click here to contact us for a quotation for taking this course as course-on-demand.

Online and Distance Learning Corrosion Courses

All corrosion courses can be conducted through online or distance learning. An username and password will be emailed to course participants for accessing the online course materials. Alternatively, a CD-ROM containing the same online course material or a master hard copy of corrosion course notes can be sent to your organization. Instructions, course assignments, discussions and questions related to the corrosion courses are posted on the website. Free email support for online courses is provided for a period up to 12 months. A Certificate of Completion will be issued to participants who pass the online test with a score of 70% and above.

Click here to register this corrosion short course for online or distance learning.

PowerPoint Slides and Test Banks for Trainers, Instructors, Tutors, University Lecturers and Professors

If you are involved in teaching or training, you may wish to purchase a complete set of the trainer's package for this training course. The trainer's package comes complete with ready-to-use PowerPoint slides (fully editable) and test bank (with answer keys). These ready-to-use PowerPoint slides contain high quality color photographs, illustrations, animations, audio and video clips. The test bank contains questions in four categories: (1) true or false, (2) multiple choice, (3) calculation, and (4) reasoning and open-ended discussions. The trainer's package is suitable for in-house training and university teaching. This is exactly the same package that WebCorr uses to deliver our current training course.

The one-time lump sum fee allows your organization to use the training package and also modify it. For example, your organization may modify the course contents and re-name/re-brand the course under your organization’s name. WebCorr only retains the copyright of the original PowerPoint slides and test bank.

Click here to contact us if you need more information on the trainer's package.

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