< Back to Webinar/Webtorial list

Stencil Printing - A Practical Guide to Defect Prevention and Yield Improvement

Presenter: Chrys Shea
Company: Shea Engineering Services
Date Published: 11/18/2014

Description: This brand new course begins with the basics of SMT solder paste stencil printing and ends with the latest research in stencil printing tools and technologies. The class starts with a quick description of printing fundamentals: solder paste characteristics and behaviors, the mechanics of the process and importance of a good setup, and the relationship between aperture sizes and paste deposit formations. It then progresses rapidly into troubleshooting techniques for both general and specific printing issues, and addresses problem prevention through proper stencil design and selection. Moving into advanced technology topics, the course reviews the last four years of independent research on stencil materials, manufacturing processes and nanocoatings, and closes with an update of automated Solder Paste Inspection (SPI) technologies, applications and special features. Attendees are encouraged to ask questions or bring specific problems to the class for suggestions and inputs.

Topics Covered

Solder paste Mechanics of the printing process Troubleshooting process problems Stencil design Stencil materials and manufacturing processes Automatic Solder Paste Inspection (SPI) Review and Q&A

Who should attend: SMT assembly process engineers and technicians responsible for production or new product introductions processes Engineers and technicians just entering the SMT field who want to quickly learn the science and art of stencil printing SMT quality personnel interested in helping improve print and end-of-line yields OEM supplier quality engineers responsible for supporting and/or assessing SMT assembly contractors

Instructor Bio: Chrys Shea is the President of Shea Engineering Services, a consulting firm that produces technical studies and communications tools for the electronics manufacturing industry. With several hundred publications to her credit, Chrys leverages her 20+ years of process engineering and management experience to create documents, presentations, web pages and other items that deliver complex technical topics clearly and effectively.

Chrys is a favorite speaker at SMTA events, and has twice received the SMTAI “Best of Conference” award for her work on solder paste printing. In 2012 she was honored with the SMTA “Member of Technical Distinction” award.

Chrys earned her B.S. in Mechanical Engineering from the University of Massachusetts and her M.S. in Manufacturing Engineering from the University of Rhode Island, and is a past president of the Philadelphia SMTA Chapter. She launched Shea Engineering services in 2008.

Key Words: 

Stencil, Printing, SMT, Print Yields, defect prevention

  Members: $200.00 (Log on to receive the member rate)
  Non-Members: $300.00

Want to download articles for free? Join SMTA today!


SMTA Headquarters
6600 City West Parkway, Suite 300
Eden Prairie, MN 55344 USA

Phone +1 952.920.7682
Fax +1 952.926.1819