this Volume 4764 of the conference proceedings contains 32 papers. Topics discussed include next generation masks, mask applications, pattern generation, materials and processes, enhanced techniques and data processin...
详细信息
this Volume 4764 of the conference proceedings contains 32 papers. Topics discussed include next generation masks, mask applications, pattern generation, materials and processes, enhanced techniques and data processing, metrology, inspection and repair.
this Volume 5148 of the conference proceedings contains 33 papers. Topics discussed include optical proximity correction, mask industry, metrology, defect printability and repair, inspection, data flow and process aut...
详细信息
this Volume 5148 of the conference proceedings contains 33 papers. Topics discussed include optical proximity correction, mask industry, metrology, defect printability and repair, inspection, data flow and process automation and mask optimization.
the proceedings contains 26 papers from the 20theuropeanconference on masktechnology for integratedcircuits and microcompounds. Topics discussed include: determining the transfer function of a mask fabrication pro...
详细信息
the proceedings contains 26 papers from the 20theuropeanconference on masktechnology for integratedcircuits and microcompounds. Topics discussed include: determining the transfer function of a mask fabrication process;towards systematic CD process control for e-beam lithography;optimized processes and absorber-stack materials for EUV masks;investigation of Cr etch chamber seasoning;metrological characterization of new CD photomask standards;dynamic mask defects in hot embossing lithography and predicting microfluidic response during immersion lithography scanning.
mask definition was performed by use of nanoimprint lithography and subsequent reactive ion etching in an oxygen plasma. Polystyrene was chosen as a polymer mask material. Different features ranging from 400 nm up to ...
详细信息
ISBN:
(纸本)0819440396
mask definition was performed by use of nanoimprint lithography and subsequent reactive ion etching in an oxygen plasma. Polystyrene was chosen as a polymer mask material. Different features ranging from 400 nm up to 4 mum were produced in the polymer layer by nanoimprint. Optimisation of the residual layer removal process in oxygen RIE was performed at different pressures and self-bias voltages. Low pressure and high bias voltage are required for high quality mask definition.
A comparison of the achievements of charged particle beam induced processes as published is evaluated to judge on the applicability of this technology for Next Generation Lithography mask repair. Methods for repair of...
详细信息
ISBN:
(纸本)0819440396
A comparison of the achievements of charged particle beam induced processes as published is evaluated to judge on the applicability of this technology for Next Generation Lithography mask repair. Methods for repair of defects of different types on different masks are reviewed. this compares the achievements of ion beam technologies as well as of electron beam technologies. Withthese techniques the properties of the deposited materials for open defect repair can be selected using different precursors, currents, temperatures and voltages for the deposition process. Very high resolution is achievable. For opaque defects the etching and trimming of a surplus of absorber or scattering material with electrons or ions is compared.
As device dimensions shrink, a detailed understanding of the exposure and development of masks is necessary to optimize electron-beam lithography. Because of proximity effects and dose distributions within the resist,...
详细信息
ISBN:
(纸本)0819440396
As device dimensions shrink, a detailed understanding of the exposure and development of masks is necessary to optimize electron-beam lithography. Because of proximity effects and dose distributions within the resist, achieving small-pattern fidelity is one of the most challenging tasks in maskmaking. the research discussed in this paper examines the exposure and process parameters that influence the fidelity of features on a photomask, with a focus on critical dimension (CD uniformity, CD linearity, small-feature resolution, and long-term system performance. In accordance with operating recommendations for the MEBES(R) 5500 system, all experiments are performed with ZEP 7000 resist, 10 muC/cm(2) dose, ZED 750 developer, and dry etch. Some experiments employ GHOST proximity effect correction (FastPEC). these results are instructive for improved 130 nm node lithography and 180 nm node productivity.
In this study, we focus on mask manufacturing contribution on 248nm & 193nm lithography performances. the masks are manufactured at DPI using both E-beam/Laser writing technologies (e-beam/laser) and two etching p...
详细信息
ISBN:
(纸本)0819440396
In this study, we focus on mask manufacturing contribution on 248nm & 193nm lithography performances. the masks are manufactured at DPI using both E-beam/Laser writing technologies (e-beam/laser) and two etching processes (Wet/Dry). masks are optimized for 150nm node at wafer scare, neither RET nor tuning are used, despite of this, we obtain excellent and unexpected results for inferior nodes which highlight the robustness of the manufacturing mask processes being used.
through application of modern supply chain concepts in combination with state-of-the-art Information technology, mask manufacturing performance and customer satisfaction can be improved radically the AutoMOPS solution...
详细信息
ISBN:
(纸本)0819440396
through application of modern supply chain concepts in combination with state-of-the-art Information technology, mask manufacturing performance and customer satisfaction can be improved radically the AutoMOPS solution emphasises on the elimination of the order verification through paperless, electronically linked information sharing/exchange between chip design, mask production and prototype production stages.
We have experimentally studied a possibility of chemically amplified (CA) resist process for mask production in various aspects. the pattern fidelity of CA resist for small patterns such as serifs and scattering bars ...
详细信息
ISBN:
(纸本)0819440396
We have experimentally studied a possibility of chemically amplified (CA) resist process for mask production in various aspects. the pattern fidelity of CA resist for small patterns such as serifs and scattering bars was compared to that of ZEP7000, the most frequently used e-beam resist. We elucidated the degree of delay effect in vacuum during a long e-beam writing time. It proved that critical-dimension (CD) change occurred with an acetal. type resist compared to an acrylate type resist. We have achieved CD uniformity of < 10nm in 3 sigma within 135 X 135 mm(2) field showing a high possibility for CAR process to be applied to the mask production for device generations, beyond 180nm.
As critical dimensions and exposure wavelengths approach the physical limitations of optical lithography, the use of newer techniques such as Phase Shift Photomask Technologies become necessary to extend the viability...
详细信息
ISBN:
(纸本)0819440396
As critical dimensions and exposure wavelengths approach the physical limitations of optical lithography, the use of newer techniques such as Phase Shift Photomask Technologies become necessary to extend the viability of DUV lithographic tools. Alternating Phase Shift mask technologies are challenging the capabilities of current quartz dry etch processes;as this phase shift technique is achieved by the precise removal of quartz, the need for ever improving phase shift uniformity across the photomask surface requires extremely uniform quartz etch depth. To this end, a Next Generation ICP (Inductively Coupled Plasma) hardware configuration has been adopted. In this article, the quartz etch parameter space of this new ICP source is explored. Finally, process results including, quartz roughness, sidewall profile, and most importantly quartz etch rate uniformity will be presented.
暂无评论