TPoS（有分大小寫）是什麽意思

a kind of filters with the piezoelectric layer stacked on a relatively thicker substrate which forms the bulk of the device, which are referred to as the thinfilm piezoelectric-on-substrate (TPoS) devices.

來自文獻 low-loss lateral-extensional piezoelectric filters on ultrananocystalline diamond的introduction 部分

應該是壓電濾波器的壹種，結構為在相對厚的襯底上堆垛壓電層。