摘要:
A method for making a transistor 20 that includes using a transition metal nitride layer 200 and/or a SOG layer 220 to protect the source/drain regions 60 from silicidation during the silicidation of the gate electrode 90. The SOG layer 210 is planarized to expose the transition metal nitride layer 200 or the gate electrode 93 before the gate silicidation process. If a transition metal nitride layer 200 is used, then it is removed from the top of the gate electrode 93 before the full silicidation of the gate electrode 90.
摘要:
A process for preparing a rubber composition comprises: (a) forming a mixture of: (i) at least one thiocarboxyl-functional hydrolyzable silane, (ii) at least one rubber containing carbon-carbon double bonds, (iii) at least one silane-reactive filler, (iv) at least one activating agent, and (v) water; (b) mixing the composition formed in step (a) under reactive-mechanical-working conditions and in the absence of vulcanizing agent(s); (c) adding at least one vulcanizing agent (vi) to the composition of step (b); (d) mixing the composition of step (c) under non-reactive-mechanical-working conditions; and, (e) optionally, curing the rubber composition of step (d).
摘要:
Gas switching is used during an etch process to modulate the characteristics of the etch. The etch process comprises a sequence of at least three steps, wherein the sequence is repeated at least once. For example, the first step may result in a high etch rate of oxide (108) while the second step is a polymer coating steps and the third step results in a low etch rate of oxide and high etch rate of another material (114) and/or sputtering.
摘要:
Gas switching is used during an etch process to modulate the characteristics of the etch. The etch process comprises a sequence of at least three steps, wherein the sequence is repeated at least once. For example, the first step may result in a high etch rate of oxide (108) while the second step is a polymer coating steps and the third step results in a low etch rate of oxide and high etch rate of another material (114) and/or sputtering.
摘要:
A method for making a transistor 20 that includes using a transition metal nitride layer 200 and/or a SOG layer 220 to protect the source/drain regions 60 from silicidation during the silicidation of the gate electrode 90. The SOG layer 210 is planarized to expose the transition metal nitride layer 200 or the gate electrode 93 before the gate silicidation process. If a transition metal nitride layer 200 is used, then it is removed from the top of the gate electrode 93 before the full silicidation of the gate electrode 90.
摘要:
Methods are disclosed for forming trench or via cavities in a single damascene interconnect structure, comprising etching a dielectric layer to form a cavity there and to expose an underlying etch-stop layer, and etching the exposed etch-stop layer to extend the cavity and to expose a conductive feature in an existing interconnect structure, wherein etching the portion of the dielectric layer and etching the exposed portion of the etch-stop layer are performed concurrently with substantially no intervening processing steps therebetween. Also disclosed are methods of forming a via cavity in a dual damascene interconnect structure, comprising forming an etch-stop layer over an existing interconnect structure, forming a dielectric layer over the etch-stop layer, etching a portion of the dielectric layer to form a via cavity in the dielectric layer and to expose a portion of the etch-stop layer, and etching the etch-stop layer to extend the via cavity, where the dielectric layer is covered during etching of the etch-stop layer.
摘要:
A semiconductor device is fabricated with energy based process(es) that alter etch rates for dielectric layers within damascene processes. A first interconnect layer is formed over a semiconductor body. A first dielectric layer is formed over the first interconnect layer. An etch rate of the first dielectric layer is altered. A second dielectric layer is formed on the first dielectric layer. An etch rate of the second dielectric layer is then altered. A trench etch is performed to form a trench cavity within the second dielectric layer. A via etch is performed to form a via cavity within the first dielectric layer. The cavities are filled with conductive material and then planarized to remove excess fill material.
摘要:
One or more aspects of the subject disclosure pertain to forming single or dual damascene interconnect structures in the fabrication of semiconductor devices. The interconnect structures are formed in manners that mitigate one or more adverse effects associated with conventional techniques. One or more aspects of the invention may be employed, for example, to facilitate better via critical dimension (CD) control, improve selectivity of etch-stop layer to inter layer dielectric (ILD) and/or intra-metal dielectric (IMD) material, and/or to simplify and make the fabrication process more efficient and/or cost effective.
摘要:
Disclosed are methods and related compositions for altering the physical and chemical properties of a substrate used in hydrocarbon exploitation, such as in downhole drilling operations. In a preferred embodiment a method involves formulating a fluid, tailored to the specific drilling conditions, that contains one or more inactivated enzymes. Preferably the enzyme is inactivated by encapsulation in a pH responsive material. After the fluid has been introduced into the well bore, one or more triggering signals, such as a change in pH, is applied to the fluid that will activate or reactivate the inactivated enzyme, preferably by causing it to be released by the encapsulation material. The reactivated enzyme is capable of selectively acting upon a substrate located downhole to bring about the desired change in the chemical or physical properties of the substrate.
摘要:
After via etch, a low-k dielectric layer (104) is treated with an in-situ O2 plasma. Resist poisoning is caused by a N source that causes an interaction between low-k films (104), such as OSG, and DUV resist (130, 132). The in-situ plasma treatment immediately removes the source of poisoning to reduce or eliminate poisoning at trench patterning.