Patent ID: 9126826
Filing Date: 2015-09-08
Classification: B81B,B81C,G01L,H01L

Abstract:
1. A micro-electromechanical semiconductor component comprising: a first substrate comprising a silicon layer and a silicon oxide layer applied thereon and forming an upper side of the first silicon semiconductor substrate, wherein in the first substrate there is formed a cavity delimited by side walls as well as a bottom wall and open at the upper side of the first substrate, a second substrate comprising a silicon oxide layer applied on a silicon layer and a polysilicon layer applied on the silicon oxide layer and having a thickness, wherein the polysilicon layer of the second substrate is arranged to face the upper side of the first substrate, and is directly bonded to the silicon oxide layer of the first substrate, wherein the second substrate covers the cavity in the first substrate, wherein trenches are arranged in the second substrate in a region of a section thereof that covers the cavity, wherein the trenches are open to a side of the second substrate facing away from the cavity, and wherein the trenches extend through both the silicon layer and the silicon oxide layer of the second substrate and up to its polysilicon layer.