Invention Grant
US08278718B2 Stressed barrier plug slot contact structure for transistor performance enhancement 有权
用于晶体管性能提升的阻塞插塞槽接触结构

Stressed barrier plug slot contact structure for transistor performance enhancement
Abstract:
A method for forming a slot contact structure for transistor performance enhancement. A contact opening is formed to expose a contact region, and a slot contact is disposed within the contact opening in order to induce a stress on an adjacent channel region. In an embodiment, a stress inducing barrier plug is disposed within a portion of the contact opening and the remainder of the contact opening is filled with a lower resistivity contact metal. By selecting the proper materials and deposition parameters, the slot contact can be tuned to induce a tensile or compressive stress on the adjacent channel region, thus being applicable for both p-type and n-type devices.
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