IMPORTANCE OF CONTACT ANGLE MEASUREMENTS IN MANUFACTURING OF ELECTRONICS

Importance of Water Contact Angle Measurements in Manufacturing of Electronics

Role of Material Science in Electronics Manufacturing

Material science is a critical and rapidly-evolving facet of the manufacturing sector. This is more
so the case with electronics manufacturing. An in-depth understanding of materials and their
properties has become necessary to determine and improve the functionality, efficiency, and
durability of electronic devices.

Importance of Wettability and Surface Preparation

One such commonly studied property is the interaction of materials with liquids, particularly
water. For testing the wettability properties of solid substrates, the contact angle meter, also
referred to as water contact angle meter, is a preferred device. This versatile instrument
provides insights into the cleanliness levels of surfaces, which is a key determinant of adhesion.
The long-term performance of electronic devices often depends on how well surfaces adhere to
each other. Poor adhesion can lead to problems such as corrosion, electrical malfunctions, and
premature product failure.

Most cases of poor adhesion arise from inadequately prepared surfaces where contamination
causes improper wetting and leads to substandard performance. For instance, if a surface isn’t
clean enough, coatings may not adhere effectively, thereby impacting the functioning and durability of the product. By evaluating the contact angle of water on surfaces such as glass, aluminum, copper, or Teflon, manufacturers can ensure surfaces are free from contamination and sufficiently prepared for optimal bonding.

Kyowa Interface Science: A Solution for the Electronics Industry

Kyowa Interface Science is a pioneer manufacturer of water contact angle meters with a model range specially designed for the electronics industry. These models are equipped with the following features which make them well suited for the electronics industry.

  • High-speed camera: The CMOS camera is optimized for evaluating electronic
    components and can capture images at 400 fps with a resolution of 640×480
  • 360º rotating sample stage: With a diameter of 335 mm, the sample stage can be fully
    rotated which makes this model ideal for evaluating large and complex electronic parts
    or components
  • Tilting stage: The instrument can be optionally fitted with a tilting stage to measure roll-
    off contact angle

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