Patent ID: 8816409
Filing Date: 2014-08-26
Classification: H01L

Abstract:
1. A metal-oxide semiconductor (MOS) transistor, comprising: a semiconductor substrate including a shallow trench isolation; a first photo-etched layer comprising a gate disposed on the semiconductor substrate, wherein the gate comprises four sidewalls, and two of the four sidewalls opposite to each other comprise a spacer thereon while the other two sidewalls opposite to each other comprise no said spacer, wherein the gate is of a rectangular shape and has a second photo-etched slot directly formed on one sidewall of the gate and exposing the shallow trench isolation, of which no spacer is disposed thereon; a recess in the semiconductor substrate adjacent two sides of the spacers; and an epitaxial layer disposed in the recess in the semiconductor substrate adjacent to two sides of the spacer; and wherein the second photo-etched slot is formed without a line end bridge.