摘要:
A semiconductor device (100) is disclosed, comprising stack of a first metal layer (110), a first dielectric layer (120), a second metal layer (130),a second dielectric layer (140), and a third metal layer (150). Further, a magnetic tunnel junction, MTJ, device (160) is arranged in the first dielectric layer and the second metal layer and electrically connected to the first metal layer and the third metal layer. A method for manufacturing such as semiconductor device is also disclosed.
摘要:
An interconnect structure (12) comprising: a. a first entity (1) comprising a first set of two or more conductive lines (2) having coplanar top surfaces (5), the conductive lines (2) being separated by a first set of one or more dielectric lines (3) having coplanar top surfaces (6) positioned above the top surfaces (5) of the conductive lines (2) thereby forming dielectric ridges (4) between the conductive lines (2), b. a first dielectric etch-stop layer (7a) overlaying the first entity (1), and c. a low-k dielectric material (8) overlaying the first dielectric etch-stop layer (7a), wherein a via (9) is formed through the low-k dielectric material (8) and the first dielectric etch stop layer (7a), the via (9) exposing a portion (11) of a conductive line (2), the via (9) being filled with a conductive material (18); and a method for making the same.
摘要:
The present invention is related to a method for producing an integrated circuit device, comprising a Front-end-of-line (FEOL) portion and a Back-end-of-line (BEOL) portion (102). The metallization layers comprise dielectric layers, preferably low-k dielectric layers, with metal conductors and/or interconnect structures incorporated within said dielectric layers. In a device according to the invention, in at least some of the metallization layers of the BEOL stack, the elastic modulus of the dielectric material varies from one area of the layer to one or more other areas of the layer. In the method of the invention, a mask layer (21) is applied on the BEOL stack or on one of the metallization layers during fabrication of the stack, said mask layer covering portions of the stack area and exposing other portions of said area. Then a treatment is performed that changes the elastic modulus of the dielectric material in one or more of the metallization layers, but only in the areas not covered by the mask layer.
摘要:
A method for forming a pattern for an integrated circuit, comprising the steps of: a. providing a hardmask layer (3), b. overlaying the hard mask layer (3) with a set of parallel material lines (41) delimiting gaps (6) therebetween, c. providing a spacer layer (5) following the shape of the material layer (4), d. removing a top portion (5t) of the spacer layer (5), thereby forming spacer lines (5I) alternatively separated by material lines (4I) and by gaps (6), e. providing a blocking element (7b) in a portion of a gap (6), f. etching selectively the hard mask layer (3) by using the material layer (4), the spacer lines (5I) and the blocking element (7b) as a mask, thereby providing a first set of parallel trenches (8) in the hardmask layer (3), wherein a trench (8a) has a blocked portion (3b), and g. selectively removing the blocking element (7b).
摘要:
The present invention is related to a method for producing an integrated circuit device, comprising a Front-end-of-line (FEOL) portion and a Back-end-of-line (BEOL) portion (102). The metallization layers comprise dielectric layers, preferably low-k dielectric layers, with metal conductors and/or interconnect structures incorporated within said dielectric layers. In a device according to the invention, in at least some of the metallization layers of the BEOL stack, the elastic modulus of the dielectric material varies from one area of the layer to one or more other areas of the layer. In the method of the invention, a mask layer (21) is applied on the BEOL stack or on one of the metallization layers during fabrication of the stack, said mask layer covering portions of the stack area and exposing other portions of said area. Then a treatment is performed that changes the elastic modulus of the dielectric material in one or more of the metallization layers, but only in the areas not covered by the mask layer.