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Glite Dictionary
🧪 A chip coating 🥤 Too little filling 🥤 To fill too little
underfill

underfill

9.6
A material placed under an electronic chip to fill gaps and protect solder joints
  • noun
  • /ˈʌndərˌfɪl/
  • Specialized
translation icon : relleno inferior
  • The engineer applied an underfill to ensure better adhesion of the chip to the circuit board.

Examples

  • The technician checked the amount of underfill under the chip to confirm it met the specifications.

  • Using an underfill can help protect solder joints from mechanical stress.

  • And then you could measure the surface topography and see how much over plating or how much underfill you might have in each of those regions.

  • And then you could measure the surface topography and see how much over plating or how much underfill you might have in each of those regions.

Synonyms

underthing
vsunderfill
1 8.2

A padded layer placed under something to protect it

is a technical layer used under electronic components to protect joints and fill gaps

How Protective

underfill
  • Specialized
9.6

Surface Forms

underfill singular
underfills plural

Morphology

underfill = fill (semi-transparent) = under + fill

The components 'under' + 'fill' clearly indicate a filling placed beneath something, but the precise referent (a specialized polymer/epoxy used under chips) is technical and not predictable for general learners.

Etymology

Underfill comes from under ('below') and fill ('to make full'), and it paints a simple picture of something that fills under another thing. In electronics, an underfill is a material placed beneath a chip to fill gaps and protect the small metal joints, so the name literally means the 'filling under' the chip.