# US 10,118,376 B2 · Process for producing a three-dimensional structure > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,118,376 B2 - Document ID: US10118376B2 - Status: Granted - Kind: B2 - Application number: 15/140,898 - Filed: 2016-04-28 - Published: 2016-11-17 - Granted: 2018-11-06 - Earliest claimed: 2015-05-13 - Assignees: Nanoscribe GmbH - Applicants: Nanoscribe GmbH - Inventors: Roman Reinhard Reiner; Yann Tanguy; Joerg Hoffmann - Web page: https://patentgrep.com/patent/US10118376B2 ## CPC - G05B 19/4099: Surface or curve machining, making three-dimensional [3D] objects, e.g. desktop manufacturing - B29C 64/135: the energy source being concentrated, e.g. scanning lasers or focused light sources - B29C 64/277: using multiple radiation means, e.g. micromirrors or multiple light-emitting diodes [LED] - B33Y 10/00: Processes of additive manufacturing - B33Y 80/00: Products made by additive manufacturing - G05B 2219/35134: 3-D cad-cam - G05B 2219/49007: Making, forming 3-D object, model, surface - G05B: CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS (systems for controlling or regulating non-electric variables G05D; systems for regulating electric or magnetic variables G05F; control devices or systems insofar as characterised by mechanical features only G05G) - B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00) - B33Y: ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING ## Abstract A method for producing a three-dimensional overall structure (18) by a structuring device (10a, 10b), which has a predefined principal direction (16) of the structure entry in a writing region (20). The overall structure (18) is defined by sequential definition of a plurality of partial structures (22) that complement one another overall to form the overall structure (18). The partial structures (22) are delimited in each case within enveloping interfaces (36). In this case, the partial structures (22) are chosen in such a way that the enveloping interfaces (36) extend obliquely with respect to the principal direction (16) of the structure entry. ## Claims ### Claim 1 A method for producing a three-dimensional overall structure (18) by an energy irradiation method in a lithography material that is structurable by energy input via a structuring device (10a, 10b), which has a predefined principal direction (16) of the structure entry in a writing region (20), the method comprising: writing the overall structure (18) by sequential writing of a plurality of partial structures (22) that complement one another overall to form the overall structure (18), delimiting the partial structures (22) in each case within enveloping interfaces (36), and writing the partial structures (22) such that the enveloping interfaces (36) run obliquely with respect to the principal direction (16) of the structure entry, wherein the lithography material is polymerized by two-photon absorption or multi-photon absorption in at least one focus region (32) of at least one writing beam (14), said at least one focus region is spatially displaceable within the writing region (20), and wherein the interface (36), which borders a respective partial structure (22) in a direction opposite to partial structures (22) that are already present, is running such that said interface (36) forms an outer side (38) of the partial structures and the outer side (38) is completely visible from a viewing point (P) spaced apart opposite to the principal direction (16), the method further comprising: providing a data set representing the overall structure (18), and determining further data sets therefrom in a computer-aided manner, said further data sets representing the partial structures (22), and controlling the structuring device (10a, 10b) in accordance with the data sets. ### Claim 2 (depends on 1) The method as claimed in claim 1, wherein the partial structures (22) are demarcated by cuts of the overall structure (18) with the enveloping interfaces (36). ### Claim 3 (depends on 1) The method as claimed in claim 1, wherein adjacent ones of the partial structures (22) in each case have at least one identical one of the enveloping interfaces (36). ### Claim 4 (depends on 1) The method as claimed in claim 1, wherein the enveloping interfaces (36) form an acute angle with the principal direction (16) of the structure entry, said acute angle being open opposite to the principal direction (16). ### Claim 5 (depends on 1) The method as claimed in claim 1, further comprising: arranging the partial structures (22) in a decomposition grid and in each case at least one of the enveloping interfaces (36) of one of the partial structures (22) extends parallel to at least one of the enveloping interfaces (36) of a further one of the partial structures (22). ### Claim 6 (depends on 1) The method as claimed in claim 1, further comprising, for sequentially writing the partial structures (22), displacing the writing region (20) of the structuring device (10a, 10b) sequentially and writing one of the partial structures (22) in each case in the writing field (20).