Method and apparatus for direct self assembly in target design and production

Target designs methods and targets are provided, in which at least some of the differentiation between target elements and their background is carried out by segmenting either of them. Directed self-assembly (DSA) processes are used to generate fine segmentation, and various characteristics of the p...

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Bibliographische Detailangaben
Hauptverfasser:	Yohanan, Raviv, Choi, Dongsub, Amit, Eran, Itzkovich, Tal, Amir, Nuriel, Volkovich, Roie
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS SPECIALLY ADAPTED THEREFOR BASIC ELECTRIC ELEMENTS CALCULATING CINEMATOGRAPHY COMPUTING COUNTING ELECTRIC DIGITAL DATA PROCESSING ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY ELECTROGRAPHY HOLOGRAPHY INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM MATERIALS THEREFOR MEASURING ORIGINALS THEREFOR PERFORMING OPERATIONS PHOTOGRAPHY PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES PHYSICS SEMICONDUCTOR DEVICES TESTING TRANSPORTING
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Beschreibung
Zusammenfassung:	Target designs methods and targets are provided, in which at least some of the differentiation between target elements and their background is carried out by segmenting either of them. Directed self-assembly (DSA) processes are used to generate fine segmentation, and various characteristics of the polymer lines and their guiding lines are used to differentiate target elements from their background. Target designs and design principles are disclosed in relation to the DSA process, as well as optimization of the DSA process to yield high metrology measurement accuracy in face of production inaccuracies. Furthermore, designs and methods are provided for enhancing and using ordered regions of a DSA-produced polymer surface as target elements and as hard masks for production processes. The targets and methods may be configured to enable metrology measurements using polarized light to distinguish target elements or DSA features.