In 2005, Professor Wang Yan used copper-assisted chemical etching to successfully fabricate an inverted pyramid structure, bringing hope for low-cost fabrication of inverted pyramid structures
In 2005, Professor Wang Yan successfully made the inverted pyramid structure with copper-assisted chemical etching, which brought hope for the low-cost preparation of the inverted pyramid structure
In 2005, Professor Wang Yan successfully fabricated inverted pyramid structure with copper assisted chemical etching, which brings hope for low-cost preparation of inverted pyramid structure<BR>