Abstract: A 3D printing method using strengthened auxiliary wall is provided. The method is to control a 3D printer to retrieve multiple layers of object print data corresponding to a 3D object, and multiple layers of wall print data and raft print data, print multiple layers of raft slice physical models on a print platform layer by layer according to the raft print data, print multiple layers of wall slice physical models on the printed raft slice physical models layer by layer according to the wall print data, and print multiple layers of 3D slice physical models layer by layer according to the object print data during printing the raft slice physical models and the wall slice physical models. It can effectively prevent the auxiliary wall form collapsing and failure of printing a whole 3D physical model via making a raft structure be arranged under the auxiliary wall.

Abstract: An inkjet method adapting to a three-dimensional printing device is provided. The inkjet method includes following steps: judging whether a first reference pixel value of a first reference pixel in a first reference image is greater than or equal to a preset threshold value to determine a first pixel value of a first pixel in a first inkjet image; generating a weight value corresponding to a second reference pixel according to number of the second reference pixel adjacent to the first reference pixel in the first reference image and a second reference image; and adjusting a second reference pixel value of the second reference pixel in the first reference image and the second reference image according to the first reference pixel value, the first pixel value, and the weight value. In addition, the above three-dimensional printing device is also provided.

Abstract: A method for indenting coloring-areas of a colored 3D object includes: importing a 3D object; performing a slicing process on the 3D object for generating multiple object printing data-records and multiple color printing data-records of multiple printing layers; performing an indenting process on a color printing data-record of a lowest coloring-required printing layer for generating an indented color printing data-record; storing the multiple object printing data-records, the multiple color printing data-records, and the indented color printing data-record.

Abstract: A warpage prevented printing method includes following steps: obtaining raft printing information when a printing action is about to be performed by a 3D printer (1); controlling a print-head (12) of the 3D printer (1) to print a raft (4) on a printing platform (11) of the 3D printer (1) according to the raft printing information; obtaining object printing information corresponding to a first printing layer of a 3D object; controlling the print-head (12) raising along a Z axis to a printing height of the first printing layer; controlling the print-head (12) to print a slicing object (31) of the first printing layer on the raft according to the object printing information; determining whether the 3D object is printed completely; and, re-executing above steps for printing next slicing object (31) of next printing layer of the 3D object until the 3D object is printed completely.

Abstract: A color three-dimensional printing method and a three-dimensional printing equipment are provided. A slicing processing is performed on a 3D model to obtain a printing path file and a plurality of inkjet images. A first layer controlling data in the printing path file is read, wherein the first layer controlling data records a plurality of printing position points and a plurality of inkjet position points. Movement of a printing head is controlled according to the printing position points, and the printing head is controlled to extrude a forming material, to establish a first layer object. A first inkjet image among the inkjet images is read. Movement of an inkjet head on a plane is controlled according to the inkjet position points, and the inkjet head is controlled to spray the ink on the first layer object according to the first inkjet image.

Abstract: A method for printing a model for a 3D printer includes: perform a slicing process on an outer-frame object for generating multiple slicing-route files of multiple printing layers; perform the slicing process on a modeling object for generating multiple inkjet graphic files of the multiple printing layers; print a slicing object of one printing layer according to corresponding one of the slicing-route files; perform a filling process to the inside of the printed slicing object; perform a coloring process on the inside of the printed slicing object according to one of the inkjet graphic files corresponding to the same printing layer; and re-execute the above printing steps until all the printing layers are printed. The inside of the 3D model is colored via the inkjet graphic files generated after processing on the modeling object generating the visual effect that the modeling object is accommodated within the 3D model.

Abstract: A three dimension (3D) printing coloring method and a 3D printing system are provided. The method includes: generating printing object information according to model information of a 3D object, where the printing object information includes first contour coloring information and second contour coloring information; determining whether a similarity degree of the first contour coloring information and the second contour coloring information conforms to a default condition; if the similarity degree conforms to the default condition, controlling, according to the first contour coloring information and the second contour coloring information, a 3D printing device to perform a simultaneous coloring operation on a first printing layer and a second printing layer of a 3D object. Therefore, a working efficiency of the 3D printing device can be improved.

Abstract: A three-dimensional (3-D) printing apparatus and an inkjet coloring method thereof are provided. The 3-D printing apparatus includes a platform, a three-dimensional printing head, an inkjet head and the method includes following steps. A layer thickness of at least one layer object forming a 3-D object is obtained. An ink discharge volume of an ink layer is adjusted according to the layer thickness, wherein the ink discharge volume is in positive correlation with the layer thickness. A building material is melted and printed out on the platform according to the layer thickness by the three-dimensional printing head to form the at last one layer object. Ink is dispensed on the at last one layer object according to the adjusted ink discharge volume by the inkjet head to form the ink layer.

Abstract: A three dimensional printing apparatus and a controlling method thereof are provided. A first forming material and a second forming material are adapted for being fed into a melting nozzle. A controller determines a first pulling-back amount according to a first feeding-in ratio of the first forming material and determines a second pulling-back amount according to a second feeding-in ratio of the second forming material. During a period in which a printing module stops extruding any material, the controller controls a feeding module to pull back the first forming material along a direction which is departing from a melting nozzle and controls the feeding module to pull back the second forming material along the direction which is departing from the melting nozzle.

Abstract: An image file transform method and a three-dimensional (3D) printing system are provided. The method includes: analyzing a first slicing image file having a first size to obtain a valid region in the first slicing image file; performing an image file transform operation on the first slicing image file according to the valid region to generate a second slicing image file having a second size, wherein the second slicing image file includes the valid region, and the second size is smaller than the first size; and setting an index for the second slicing image file according to the image file transform operation, wherein the index is used for a 3D printing apparatus to set a printing start point corresponding to the second slicing image file. Therefore, a storage efficiency of slicing image files for 3D printing is improved.

Abstract: A printing method for color compensation adopted by a 3D printer (1) having a 3D nozzle (121) and a 2D nozzle (122) is disclosed. The printing method includes following steps of: controlling the 3D nozzle (121) to print a slicing object (2) of the 3D object upon a printing platform (11) according to a route file; controlling the 2D nozzle (122) to perform coloring on the printed slicing object (2) according to an image file; controlling the 2D nozzle (122) and the printing platform (1) to rotate relatively for creating an angular transposition between the 2D nozzle (122) and the printing platform (1) after the slicing object (2) is colored completely; and, controlling the 2D nozzle (122) to again perform coloring on the colored slicing object (2) after the 2D nozzle (2) and the printing platform (11) rotated relatively.

Abstract: This invention provides a novel tool path planning method for five-axis flank milling by imposing the constraints of curve interpolation on the tool path. The tool motion is described in the form of spline curves during its optimization-driven calculation process, instead of discrete cutter locations in CNC linear interpolation. The coefficients of the curve equations are generated by minimizing accumulated geometrical errors on the machined surface using optimization algorithms. The continuity imposed by the spline motion reduces uneven modifications of cutter locations during the optimization process. The resultant tool path yields superior.

Abstract: A manufacturing method of a semiconductor device includes the following steps. A first gate dielectric layer is formed in a first gate trench and a second gate dielectric layer is formed in a second gate trench. A first bottom barrier layer is formed on the first gate dielectric layer and the second gate dielectric layer. A first conductivity type work function layer is formed on the first bottom barrier layer. A first treatment to the first gate dielectric layer and/or a second treatment to the first bottom barrier layer on the first gate dielectric layer are performed before the step of forming the first conductivity type work function layer. The first treatment and the second treatment are used to modify threshold voltages of specific transistors, and thicknesses of work function layers formed subsequently may be modified for increasing the related process window accordingly.

Abstract: A three dimensional printing method and a three dimensional printing apparatus are provided. Layer information of a three dimensional object is obtained, wherein the three dimensional object includes at least one layer object and the layer information includes a plurality of coordinate point locations of the at least one layer object. A geometry parameter is calculated according to the coordinate point locations, and whether the layer object includes at least one small-area object is determined according to the geometry parameter. If the layer object includes the at least one small-area object, a feed-material output amount associated with the small-area object is reduced. A printing module is controlled to print the small-area object according to the reduced feed-material output amount.

Abstract: An optical system, an optical module and a method of manufacture thereof are provided. The optical module includes a top membrane and a bottom electrode. The top membrane includes a supporting layer, a first metal layer and an isolating layer with an opening. The first metal layer is disposed on lower surface of the supporting layer. The isolating layer is disposed on lower surface of the first metal layer. The bottom electrode, disposed below the top membrane, includes a second metal layer and a plurality of pillars. The pillars are disposed on upper surface of the second metal layer and below the isolating layer, wherein some of the pillars support the isolating layer. Wherein the pillars are used for preventing the top membrane from being pulled down to touch the second metal layer through the opening when a voltage is applied between the first and the second metal layers.

Abstract: This invention provides a novel tool path planning method for five-axis flank milling by imposing the constraints of curve interpolation on the tool path. The tool motion is described in the form of spline curves during its optimization-driven calculation process, instead of discrete cutter locations in CNC linear interpolation. The coefficients of the curve equations are generated by minimizing accumulated geometrical errors on the machined surface using optimization algorithms. The continuity imposed by the spline motion reduces uneven modifications of cutter locations during the optimization process. The resultant tool path yields superior.

Abstract: The present invention discloses a five-axis flank milling system for machining a curved surface and a tool-path planning method. The method generates a tool path comprising a series of cutter locations by optimization with minimizing machining errors. The tool path planning method includes a reciprocating tool path planning method and a multi-pass tool path planning method. The reciprocating tool path planning method eliminates the “forward only” limitation. The tool is allowed to move backward in certain regions, producing smaller machining errors compared with forward only cutter movement. Furthermore, the multi-pass tool path planning method computes various tool paths applied to finish milling multiple times. Each path can be chosen to be generated by minimizing undercut error, overcut error, or the total machining error. The machining errors are reduced in a progressive manner, resulting in better machining quality than single pass tool path.

Abstract: An optical system, an optical module and a method of manufacture thereof are provided. The optical module includes a top membrane and a bottom electrode. The top membrane includes a supporting layer, a first metal layer and an isolating layer with an opening. The first metal layer is disposed on lower surface of the supporting layer. The isolating layer is disposed on lower surface of the first metal layer. The bottom electrode, disposed below the top membrane, includes a second metal layer and a plurality of pillars. The pillars are disposed on upper surface of the second metal layer and below the isolating layer, wherein some of the pillars support the isolating layer. Wherein the pillars are used for preventing the top membrane from being pulled down to touch the second metal layer through the opening when a voltage is applied between the first and the second metal layers.

Abstract: The invention discloses a five-axis flank milling system for machining curved surface and the method thereof, the system is capable of generating a tool path that minimizes the undercut error, overcut error, or the total machining error. The amount of the overcut, undercut, or total machining errors can be precisely controlled by adjustment of the cutter locations contained in a tool path. This invention is to transform tool path planning in five-axis flank milling into an optimal matching problem. The proposed mechanism of the invention significantly improves the manufacturing capability of five-axis flank milling. It enhances the machining quality by reducing various machining errors and provides a systematic approach to precise control of machining error in five-axis flank milling.

Abstract: A method for fabricating micro-lenses and a method for fabricating micro-lenses by photolithography are provided. The method includes forming a plurality of micro-cavities in a substrate, filling lens material into each of the micro-cavities, and heating the lens material, thereby reflowing the lens material so as to form a plurality of micro-lenses in the substrate. The micro-cavities define a boundary of each of the micro-lenses formed by reflowing the lens material, thereby preventing adjacent micro-lenses from fusing together by reflowing when overheated. The process uses negative photoresist and positive photoresist as micro-cavities and lens material respectively, thereby streamlining the fabrication method and its steps.