防污染浮动障碍物 Barriers (Floating anti-pollution –) 防热辐射合成物 Radiation of heat (Compositions to prevent the –) 防热散发合成物 Heat (Compositions to prevent the radiation of –) ..
The block layer 14 suppresses the radiationofheat towards the top electrode 15 and greatly limits the phase change region when a write current is applied.