| Sponsor |
|
Discover consistency for your operations
Explore the reliable solutions for jet dispensing, conformal coating, plasma treatment, and selective soldering from Nordson.
Nordson Electronics Solutions
|
|
| Sponsor |
|
Fastest 3D AOI in the Market
Experience the latest, fastest AOI on the market: the TR7700QH SII, an Ultra-High-Speed 3D AOI capable of up to 80 cm²/sec. Smart Factory Ready solution.
Test Research, Inc.
|
|
| Ask the Experts |
|
|
August 11, 2010 - Updated
August 9, 2010 - Originally Posted
Solder Mask Contributing To Solder Balls
Is there any relationship between the shape of the solder mask defined area around surface mount pads and the rate at which we see solder balls?
Could increasing or decreasing this area effect solder ball formation?
F. D.
|
| Expert Panel Responses |
From my perspective as a chemist, the solder balls form when the surface tension of the solder mask will allow them to form.
Also surface roughness may contribute to their formation by means of allowing a crack or crevice to initiate the formation.
Jim Williams
Chairman
Polyonics, Inc.
Jim Willimas is a PhD Chemist in Polymers and Materials Science. He specialize in printing, cleaning, inks, and coatings used in electronics manufacturng operations. Williams has more than 30 years experience.
|
|
Submit A Comment
|
Comments are reviewed prior to posting. You must include your full name to have your comments posted. We will not post your email address.
|
Free Newsletter Subscription
Circuitnet is built for professionals who bear the responsibility of looking ahead, imagining the future, and preparing for it.
Insert Your Email Address
|
| Sponsor |
|
SMT Line Builder Tool – Fast & Easy
Skip the guesswork. Our SMT Line Builder gives you instant, expert-recommended setups based on your budget and output. Or send us your BOM—we'll handle it.
Manncorp Inc.
|
|
|
