Method for modulating stresses of a contact etch stop layer
First Claim
Patent Images
1. A method for forming a semiconductor structure, the method comprising:
- providing a substrate comprising a first device region;
forming a first metal-oxide-semiconductor (MOS) device in the first device region;
forming a stressed layer over the first MOS device;
implanting the stressed layer; and
performing a post-treatment to modulate a stress of the stressed layer, wherein the post-treatment is selected from the group consisting essentially of ultra-violet (UV) curing, laser curing, e-Beam curing and combinations thereof.
1 Assignment
0 Petitions
Accused Products
Abstract
A method for forming a semiconductor structure includes providing a substrate comprising a first device region, forming a metal-oxide-semiconductor (MOS) device in the first device region, forming a stressed layer over the MOS device, and performing a post-treatment to modulate a stress of the stressed layer. The post-treatment is selected from the group consisting essentially of ultra-violet (UV) curing, laser curing, e-Beam curing, and combinations thereof.
-
Citations
9 Claims
-
1. A method for forming a semiconductor structure, the method comprising:
-
providing a substrate comprising a first device region; forming a first metal-oxide-semiconductor (MOS) device in the first device region; forming a stressed layer over the first MOS device; implanting the stressed layer; and performing a post-treatment to modulate a stress of the stressed layer, wherein the post-treatment is selected from the group consisting essentially of ultra-violet (UV) curing, laser curing, e-Beam curing and combinations thereof. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. A method for forming a semiconductor structure, the method comprising:
-
providing a substrate having a first active region and a second active region; forming a first MOS device in the first active region; forming a second MOS device having an opposite conductivity type than the first MOS device in the second active region; forming a contact etch stop layer overlying the first and the second MOS devices; forming a mask layer to mask the first MOS device; performing an implantation in the contact etch stop layer; and performing a curing process to modulate a stress of the contact etch stop layer over the second MOS device, wherein, after the curing process, the stress is of an opposite type than before the curing process, and wherein the curing process is selected from the group consisting essentially of ultra-violet (UV) curing, laser curing, e-Beam curing, and combinations thereof. - View Dependent Claims (8, 9)
-
Specification