214 were donated in November
This month, we are on track to donate 216

feedthrough

Definition

feedthrough rate
(Noun) A connector made by fusing a glass bead to a tubular ferrule and a concentric conductor wire. Ferrule and wire are typically low-expansion alloys such as Kovar, Alloy 42 or Alloy 48. The glass bead is expansion-matched to the alloy used so that temperature cycling will not break the chemical bond between the metal alloy and the glass. Good feedthroughs (FTs) are hermetic, i.e. helium leak-free.
Usage: 12 glass-to-metal feedthroughs were fused (melted) into place in the microelectronics package.


Link to this page:

Add or improve a definition

All definitions are approved by humans before publishing. Any promotional content will be deleted.
HTML tags are not allowed and will be encoded.
Use square brackets to link a word. For example, [abc] will render as abc. External links will be removed
home   recent additions   webmaster page   banners   feed a child