摘要:
A system, a method and a computer program product for analyzing a circuit design provide for discretizing the circuit design into a series of pixels. A fraction of at least one constituent material is determined for each pixel. A deflection is also determined for each pixel. The deflection is predicated upon a planarizing of the pixel, and it is calculated while utilizing an algorithm that includes the fraction of the at least one constituent material. A series of deflections for the series of pixels may be mapped and evaluated.
摘要:
A dielectric layer for a semiconductor device having a low overall dielectric constant, good adhesion to the semiconductor substrate, and good resistance to cracking due to thermal cycling. The dielectric layer is made by a process involving continuous variation of dielectric material deposition conditions to provide a dielectric layer having a gradient of dielectric constant.
摘要:
A method of forming a device is disclosed. The method includes providing a substrate prepared with a dielectric layer having first and second regions. The first region comprises wide features and the second region comprises narrow features. A depth delta exists between bottoms of the wide and narrow features. A non-conformal layer is formed on the substrate and it lines the wide and narrow trenches in the first and second regions. The non-conformal layer is removed. Removing the non-conformal layer reduces the depth delta between the bottoms of the wide and narrow features in the first and second region.
摘要:
An interlevel dielectric layer (ILD) comprises a low-k dielectric layer; and a low-k dielectric film, deposited under compressive stress, atop the dielectric layer. The dielectric layer comprises a low-k material, such as an organosilicon glass (OSG) or a SiCOH material. The dielectric film has a thickness, which is 2%-10% of the thickness of the dielectric layer, has a similar chemical composition to the dielectric layer, but has a different morphology than the dielectric layer. The dielectric film is deposited under compressive stress, in situ, at or near the end of the dielectric layer deposition by altering a process that was used to deposit the low-k dielectric layer.
摘要:
Methods for sealing an organic ILD layer and a metal layer after an etching step. The method includes etching through an ILD layer and leaving a remaining portion of an underlying metal layer cap, maintaining the device in an inert gas, and depositing at least a portion of a liner into the opening to seal the ILD layer and the metal layer. Subsequent processing may include formation of a via by etching through the portion of the liner and the remaining portion of the cap layer, and depositing a metal.
摘要:
An advanced back-end-of-line (BEOL) interconnect structure having a hybrid dielectric is disclosed. The inter-layer dielectric (ILD) for the via level is preferably different from the ILD for the line level. In a preferred embodiment, the via-level ILD is formed of a low-k SiCOH material, and the line-level ILD is formed of a low-k polymeric thermoset material.
摘要:
An interlevel dielectric layer (ILD) comprises a low-k dielectric layer; and a low-k dielectric film, deposited under compressive stress, atop the dielectric layer. The dielectric layer comprises a low-k material, such as an organosilicon glass (OSG) or a SiCOH material. The dielectric film has a thickness, which is 2%–10% of the thickness of the dielectric layer, has a similar chemical composition to the dielectric layer, but has a different morphology than the dielectric layer. The dielectric film is deposited under compressive stress, in situ, at or near the end of the dielectric layer deposition by altering a process that was used to deposit the low-k dielectric layer.
摘要:
An aluminum lateral interconnect of a Back End of the Line (BEOL) is used to define the x and y dimensions of a through-silicon via in a semiconductor chip formed in a silicon substrate. The TSV includes one or more aluminum annulus formed on a surface of the substrate, and a deep trench in the substrate having a diameter that is determined by the diameter of the aluminum annulus. The annulus can also be provided with a conductive strap upon which a capacitor can be formed. The strap can also be used to provide a connection of the TV to other BEOL interconnects.
摘要:
A computer aided design (CAD) system. A template generation engine generates templates from interconnect configuration files. A field solver generates high frequency passive element relationships from the templates. A circuit builder generates circuit description files from device technology models and from high frequency passive element relationships. Parameterized circuit description models may be generated for large range of sensitivity analyses. A simulator simulates circuit responses for transmission line models from the circuit description files. Interconnect configuration files may be generated by a geometry and material definition module that receives process description data from a designer.
摘要:
It is important to assess and reduce errors that arise in mask correction techniques such as optical proximity correction. A preliminary mask is obtained using an OPC model. An etched wafer is created from the preliminary mask using lithography, and first and second critical dimensions (CD) are measured on the wafer and. An edge placement error (EPE) is determined that corresponds to a difference between a measured value and a desired value of the second CD. These steps are repeated for a plurality of different values of the first CD, and of for each of the values of, the measured value of the second CD is correlated with its corresponding value on the mask as predicted by the OPC model. Δ difference ΔCD is obtained between the difference of the mask CDs calculated by interpolation of wafer CD measurements and by OPC model predictions and is transformed into an OPC model error.