摘要:
A method is provided for etching silicon in a plasma processing chamber, having an operating pressure and an operating bias. The method includes: performing a first vertical etch in the silicon to create a hole having a first depth and a sidewall; performing a deposition of a protective layer on the sidewall; performing a second vertical etch to deepen the hole to a second depth and to create a second sidewall, the second sidewall including a first trough, a second trough and a peak, the first trough corresponding to the first sidewall, the second trough corresponding to the second sidewall, the peak being disposed between the first trough and the second trough; and performing a third etch to reduce the peak.
摘要:
A method is provided for etching silicon in a plasma processing chamber, having an operating pressure and an operating bias. The method includes: performing a first vertical etch in the silicon to create a hole having a first depth and a sidewall; performing a deposition of a protective layer on the sidewall; performing a second vertical etch to deepen the hole to a second depth and to create a second sidewall, the second sidewall including a first trough, a second trough and a peak, the first trough corresponding to the first sidewall, the second trough corresponding to the second sidewall, the peak being disposed between the first trough and the second trough; and performing a third etch to reduce the peak.
摘要:
A method for etching features into an etch layer in a plasma processing chamber, comprising a plurality of cycles is provided. Each cycle comprises a deposition phase and an etching phase. The deposition phase comprises providing a flow of deposition gas, forming a plasma from the deposition gas in the plasma processing chamber, providing a first bias during the deposition phase to provide an anisotropic deposition, and stopping the flow of the deposition gas into the plasma processing chamber. The etching phase, comprises providing a flow of an etch gas, forming a plasma from the etch gas in the plasma processing chamber, providing a second bias during the etch phase, wherein the first bias is greater than the second bias, and stopping the flow of the etch gas into the plasma processing chamber.
摘要:
A method for etching features into an etch layer in a plasma processing chamber, comprising a plurality of cycles is provided. Each cycle comprises a deposition phase and an etching phase. The deposition phase comprises providing a flow of deposition gas, forming a plasma from the deposition gas in the plasma processing chamber, providing a first bias during the deposition phase to provide an anisotropic deposition, and stopping the flow of the deposition gas into the plasma processing chamber. The etching phase, comprises providing a flow of an etch gas, forming a plasma from the etch gas in the plasma processing chamber, providing a second bias during the etch phase, wherein the first bias is greater than the second bias, and stopping the flow of the etch gas into the plasma processing chamber.
摘要:
A method for etching features into an etch layer in a plasma processing chamber is provided. An optically timed deposition phase is provided comprising providing a flow of deposition phase gas, detecting the presence of deposition gas within the plasma processing chamber, providing RF energy for forming a plasma from the deposition phase gas in the plasma processing chamber, and stopping the flow of the deposition gas into the plasma processing chamber. An optically timed etching phase is provided, comprising providing a flow of an etch gas, detecting the presence of the etch gas within the plasma processing chamber, providing RF energy for forming a plasma from the etch gas in the plasma processing chamber, and stopping the flow of the etch gas into the plasma processing chamber.
摘要:
A method for etching features in a silicon layer disposed below a mask in a plasma processing chamber a plurality of cycles is provided. A deposition phase forming a deposition on the silicon layer in the plasma processing chamber is provided comprising providing a deposition gas into the plasma processing chamber wherein the deposition gas comprises a halogen containing etchant component and a fluorocarbon deposition component, forming the deposition gas into a plasma, which provides a net deposition on the silicon layer, and stopping the flow of the deposition gas. A silicon etch phase is provided, comprising providing a silicon etch gas into the plasma processing chamber that is different than the deposition gas, forming the silicon etch gas into a plasma to etch the silicon layer, and stopping the flow of the silicon etch gas.
摘要:
A method for etching features into an etch layer in a plasma processing chamber is provided. An optically timed deposition phase is provided comprising providing a flow of deposition phase gas, detecting the presence of deposition gas within the plasma processing chamber, providing RF energy for forming a plasma from the deposition phase gas in the plasma processing chamber, and stopping the flow of the deposition gas into the plasma processing chamber. An optically timed etching phase is provided, comprising providing a flow of an etch gas, detecting the presence of the etch gas within the plasma processing chamber, providing RF energy for forming a plasma from the etch gas in the plasma processing chamber, and stopping the flow of the etch gas into the plasma processing chamber.
摘要:
A method for etching features in a silicon layer disposed below a mask in a plasma processing chamber a plurality of cycles is provided. A deposition phase forming a deposition on the silicon layer in the plasma processing chamber is provided comprising providing a deposition gas into the plasma processing chamber wherein the deposition gas comprises a halogen containing etchant component and a fluorocarbon deposition component, forming the deposition gas into a plasma, which provides a net deposition on the silicon layer, and stopping the flow of the deposition gas. A silicon etch phase is provided, comprising providing a silicon etch gas into the plasma processing chamber that is different than the deposition gas, forming the silicon etch gas into a plasma to etch the silicon layer, and stopping the flow of the silicon etch gas.
摘要:
A trademark retrieval method, comprising: establishing a sample trademark library and establishing a correlation between sample trademarks and division data for figurative element codes of known pending or registered figurative trademarks; extracting and processing image feature information about the sample trademarks, and establishing a correlation between the sample trademarks and the extracted image feature information; extracting image feature information about a trademark to be retrieved; carrying out matching retrieval by taking the image feature information as a retrieval condition, and finding out a sample trademark reaching a pre-determined similarity degree, and a sample trademark with the highest similarity degree and a corresponding figurative element code; acquiring and confirming a figurative element code of the trademark to be retrieved; taking the figurative element code as a retrieval condition to carry out matching retrieval, and finding out a matching sample trademark; collecting a result retrieved by taking the image feature information as the retrieval condition and a result retrieved by taking the figurative element code as the retrieval condition; and sequencing the collected trademarks according to the similarity degree of the image feature information. By means of the present disclosure, the standardized retrieval of figurative trademarks can be realized.
摘要:
A rhizopus oryzae strain, mutagenesis and screening methods thereof, and methods of producing fumaric acid by fermentation. The strain is named as Rhizopus oryzae ME-F13, and deposited in China Center for Type Culture Collection with depository number CCTCC M 2010351. The strain is obtained by physically mutagenizing the original strain ME-F12 through ion injection, culturing the processed bacteria on the solid selective plate containing 2-D-deoxylucose (2-DG) and picking up 2-DG-resistant single colony. The strain is capable of simultaneously saccharifying starchy material and fermenting it to produce fumaric acid. With an improved enzymatic activity, the strain can be directly used to ferment raw starchy materials without needing pre-saccharifying.
摘要翻译:根霉菌株,其诱变和筛选方法,以及通过发酵产生富马酸的方法。 该菌株被命名为米曲霉ME-F13,并存放于中国型号培养基中心,存放号码为CCTCC M 2010351.该菌株是通过离子注射物理诱变原始菌株ME-F12获得的, 含有2-D脱氧葡萄糖(2-DG)的固体选择性板和拾取2-DG抗性单个菌落。 该菌株能够同时糖化淀粉物质并发酵以产生富马酸。 具有改善的酶活性,该菌株可以直接用于发酵生淀粉材料,而不需要预糖化。