SRAM DEVICES UTILIZING TENSILE-STRESSED STRAIN FILMS
摘要
<p>SRAM devices utilizing tensile-stressed strain films and methods for fabricating such SRAM devices are provided. An SRAM device (50), in one embodiment, comprises an NFET (54) and a PFET (52) that are electrically coupled and physically isolated. The PFET (52) has a gate region (64), a source region (60), and a drain region (58). A tensile-strained stress film (76) is disposed on the gate region (64) and at least a portion of the source region (60) and the drain region (58) of the PFET (52). A method for fabricating a cell of an SRAM device (50) comprises fabricating an NFET (54) and a PFET (52) overlying a substrate (56). The PFET (52) and the NFET (54) are electrically coupled and are physically isolated. A tensile-strained stress film (76) is deposited on the gate region (64) and at least a portion of the source region (60) and the drain region (58) of the PFET (52).</p>
