AZOM: Cleaving Sapphire Wafers - Reducing Material Loss and Increasing the Yield
AZOM: Methods for Cleaving Sapphire Wafers Reduce Material Loss and Increase Yield
EDN: MicroSense ships Novel LED Sapphire Wafer Measurement Tools for Process Control
“LED manufacturers typically don't make their own sapphire wafers, so incoming quality control has become a requirement for LED chip makers as the industry continues to migrate from primarily 2″ ...
Sapphire is a precious gemstone, a variety of the mineral corundum, consisting of aluminium oxide (α- Al 2 O 3) with trace amounts of elements such as iron, titanium, cobalt, lead, chromium, vanadium, magnesium, boron, and silicon.
Sapphires are super cool rocks that come in many colors and forms, known as the different types of sapphire. Blue sapphire, padparadscha sapphire, and Montana sapphire are just a few examples showing how awesome they can be. Each type of sapphire has its own special color and story.
Everything you ever wanted to know about sapphire. Find value guidelines, scientific data, expert comments, and more in our Gem Listings.
Besides blue sapphire and ruby, the corundum family also includes so-called “fancy sapphires.” They come in violet, green, yellow, orange, pink, purple, and intermediate hues.
As a sibling to the ruby, the sapphire shares its value, appeal, and scarcity. They are both members of the corundum family with rubies being red and sapphires covering all the other colors. Sapphires are famously blue, but yellow, green, or purple versions are objects of true wonder.
Sapphire, transparent to translucent, natural or synthetic variety of corundum (q.v.; aluminum oxide, Al2O3) that has been highly prized as a gemstone since about 800 bc.