Abstract: Methods for fabricating semiconductor devices are provided. An exemplary method includes forming fins in a dense region and in an isolated region of a semiconductor substrate; performing a plasma dry etch process to remove a portion of at least one selected fin to form a first trench in the dense region and to remove a portion of at least one selected fin in the isolated region to form a second trench in the isolated region, wherein the plasma dry etch process includes: performing a passivation-oriented process and an etchant-oriented process; and controlling the passivation-oriented process and the etchant-oriented process to form the first trench with a desired first critical dimension and first depth and to form the second trench with a desired second critical dimension and second depth.

Abstract: Abstract of Disclosure An uplink scheduling method, for a computer communication network includes determining a ratio of a quantity of transport control protocol (TCP) data and a quantity of an acknowledgement (ACK) of the TCP according to information of a media access control (MAC) layer, system parameters of the MAC layer and transmission data of the computer communication network by a deep learning structure.

Abstract: A light source module of a photo printer includes a first micro light source, a second micro light source, a rod lens array and a microlens. The first micro light source emits a first light beam. The second micro light source emits a second light beam. The rod lens array is arranged between the first micro light source, the second micro light source and a film paper. The microlens is arranged between the first micro light source, the second micro light source and the rod lens array. The microlens is used for converging the projection angles of the first light beams and the second light beam. The microlens has an optical axis. The second micro light source is arranged along the optical axis. The first micro light source is arranged beside a first side of the optical axis.

Abstract: An image capturing device includes an optical lens module and an optical sensor. The optical lens module includes a first optical lens, a second optical lens, a third optical lens, a first combined lens assembly and a second combined lens assembly. The first combined lens assembly is a combination of a first glass lens and a silicone lens. The optical sensor is located beside the optical lens module. After the light beam passing through the optical lens module is received by the optical sensor, an image corresponding to a target object is generated.

Abstract: A light source module of a photo printer includes a first micro light source, a second micro light source, a rod lens array and a microlens. The first micro light source emits a first light beam. The second micro light source emits a second light beam. The rod lens array is arranged between the first micro light source, the second micro light source and a film paper. The microlens is arranged between the first micro light source, the second micro light source and the rod lens array. The microlens is used for converging the projection angles of the first light beams and the second light beam. The microlens has an optical axis. The second micro light source is arranged along the optical axis. The first micro light source is arranged beside a first side of the optical axis.

Abstract: An optical lens includes seven lenses. An first lens has a negative refractive power: an second lens, an third lens, an fifth lens, an sixth lens and an seventh lens have refractive powers respectively, and the fourth lens has a positive refractive power. One of the second lens and the third lens has a positive refractive power, and the other has a negative refractive power. One of the fifth lens and the sixth lens has a positive refractive power and the other has a negative refractive power. An object-side surface of the first lens has a refractive rate R1, an image-side surface of the first lens has a refractive rate R2, and |R2/R1|?0.01.

Abstract: An optical lens includes seven lenses. An first lens has a negative refractive power: an second lens, an third lens, an fifth lens, an sixth lens and an seventh lens have refractive powers respectively, and the fourth lens has a positive refractive power. One of the second lens and the third lens has a positive refractive power, and the other has a negative refractive power. One of the fifth lens and the sixth lens has a positive refractive power and the other has a negative refractive power. An object-side surface of the first lens has a refractive rate R1, an image-side surface of the first lens has a refractive rate R2, and |R2/R1|?0.

Abstract: A linear motion guide device includes a slider slidably attached onto a guide rail, two dust caps oppositely attached to end portions of the slider respectively and each having a channel formed between two legs for slidably engaging with the guide rail, and each having a lip portion directed toward the guide rail for wiping the engaging surface of the guide rail, and the lip portions of the legs of the dust caps each include an inner flange directed toward the slider and each include a number of notches and a number of projections formed in the inner flange of each of the legs and offset from each other for wiping the lubricating fluid into the notches of the legs respectively.

Abstract: A linear motion guide device includes a slider slidably attached onto a guide rail, two dust caps oppositely attached to end portions of the slider respectively and each having a channel formed between two legs for slidably engaging with the guide rail, and each having a lip portion directed toward the guide rail for wiping the engaging surface of the guide rail, and the lip portions of the legs of the dust caps each include an inner flange directed toward the slider and each include a number of notches and a number of projections formed in the inner flange of each of the legs and offset from each other for wiping the lubricating fluid into the notches of the legs respectively.

Abstract: A projector includes a polarization conversion system and a reflective polarizer. The polarization conversion system receives unpolarized light including first S-polarized light and first P-polarized light, wherein the first S-polarized light passes through the polarization conversion system, a part of the first P-polarized light is converted into second S-polarized light after passing through the polarization conversion system, and another part of the first P-polarized light remains unchanged after passing through the polarization conversion system. The reflective polarizer allows the first S-polarized light and the second S-polarized light to pass through and reflects the first P-polarized light back to the polarization conversion system.

Abstract: A projection lens, in order along an optical axis from an image formation side to an image source side, includes a first lens, an aperture, a second lens, a third lens, and a fourth lens. The first lens is a meniscus lens with positive refractive power and a convex surface thereof facing the image formation side, and has at least an aspheric surface. The second lens is a biconcave lens with negative refractive power, and has at least an aspheric surface. The third lens is a biconvex lens with positive refractive power, and the fourth lens is a biconvex lens with positive refractive power, and has at least an aspheric surface. Therefore, the projection lens has a small size and high zoom ratio.

Abstract: A projector includes a polarization conversion system and a reflective polarizer. The polarization conversion system receives unpolarized light including first S-polarized light and first P-polarized light, wherein the first S-polarized light passes through the polarization conversion system, a part of the first P-polarized light is converted into second S-polarized light after passing through the polarization conversion system, and another part of the first P-polarized light remains unchanged after passing through the polarization conversion system. The reflective polarizer allows the first S-polarized light and the second S-polarized light to pass through and reflects the first P-polarized light back to the polarization conversion system.

Abstract: A projection lens, in order along an optical axis from an image formation side to an image source side, includes a first lens, an aperture, a second lens, a third lens, and a fourth lens. The first lens is a meniscus lens with positive refractive power and a convex surface thereof facing the image formation side, and has at least an aspheric surface. The second lens is a biconcave lens with negative refractive power, and has at least an aspheric surface. The third lens is a biconvex lens with positive refractive power, and the fourth lens is a biconvex lens with positive refractive power, and has at least an aspheric surface. Therefore, the projection lens has a small size and high zoom ratio.

Abstract: A light source module of a projector includes a beam splitter, a red light source, a blue light source, and a blue light source. The beam splitter has a first reflection side, on which a first splitter film is provided, and a second reflection side, on which a second splitter film is provided. An angle between a normal line of the first reflection side, and a normal line of the second reflection side, is in a range between 165 degrees and 180 degrees. Both the first splitter film and the second splitter film permit red rays to pass therethrough. The red light source is separated from the blue and green light sources to obtain a better thermal dissipation.

Abstract: An optical polarization converter system includes a plurality of lenses, a light incident surface, a light emitting surface, a first optical coating, a second optical coating and a half-wave plate. The lenses are made of light permeable medium and mutually and tightly arranged. A plurality of basic widths are defined on the light incident surface and the light emitting surface. The first optical coating and second optical coating, configured between the light incident surface and the light emitting surface and having an inclined angle of forty-five degrees relative to the light incident surface, are spaced apart one basic width. The half-wave plate is disposed on the light emitting surface corresponding to one of the first optical coating and the second optical coating. The first and second optical coatings are provided with properties of splitting an incident beam and beam reflection.

Abstract: A light source module of a projector includes a beam splitter, a red light source, a blue light source, and a blue light source. The beam splitter has a first reflection side, on which a first splitter film is provided, and a second reflection side, on which a second splitter film is provided. An angle between a normal line of the first reflection side, and a normal line of the second reflection side, is in a range between 165 degrees and 180 degrees. Both the first splitter film and the second splitter film permit red rays to pass therethrough. The red light source is separated from the blue and green light sources to obtain a better thermal dissipation.

Abstract: An anti-dust structure for a sliding block of a linear guideway comprises a sliding block, two end caps, plural rolling elements, a flexible anti-dust strip and a rail. The two end caps are assembled to both ends of the sliding block, the rolling elements are disposed on the rail. Between the end cap and the sliding block is defined a circulating path. The two end caps are each extended from an inner side thereof to form a linking portion, and the two linking portions of the two end caps are linked to each other to define an endless positioning groove including two longitudinal grooves and two transverse grooves. The flexible anti-dust strip is disposed in the positioning groove of the end caps and integrally formed with protruding lip portions for cooperating with the two longitudinal grooves.

Abstract: A rolling element chain system for a linear guideway comprises a slide rail, a slide block, a plurality of rolling elements and a rolling element chain. The circulating path of the slide block is interiorly provided with a guiding groove with a width C, and the rolling elements roll within the circulating path and are confined by the rolling element chain. The rolling element chain has a plurality of spacers for separating the rolling elements from one another and linking portions with a thickness t for linking the rolling elements with one another. The spacer at each end of the rolling element chain has a retaining capacity B for holding the corresponding rolling element. The above structure satisfies the relation: C<t+B/?.

Abstract: A linear guideway essentially comprises plural bolt-hole covers, and each of the bolt-hole covers essentially includes a main body and an elastic part. The main boy includes a cover plate and a positioning portion. The periphery of the positioning portion is provided with a guiding portion and a groove, and the positioning portion is provided with plural cutting grooves vertical to the cover plate for offering flexibility to the positioning portion. The elastic part is installed in the groove of the positioning portion. With the elastic functions of the positioning portion and the elastic part, the bolt-hole cover can be fixed in the bolt hole more stably through the interference with the bolt hole.