A manufacturing method includes a first repeating step of irradiating a base material with a pulse laser, having a spot diameter S, while relatively moving a laser head and the base material in a first direction, moving the laser head by a predetermined pitch width P in a second direction that intersects the first direction, and repeating irradiation by the pulse laser along the first direction and movement of the laser head in the second direction, and a second repeating step of irradiating the base material with the pulse laser while relatively moving the laser head and the base material in the second direction, moving the laser head by the pitch width in the first direction, and repeating irradiation by the pulse laser along the second direction and movement of the laser head in the first direction, wherein S<P<100 ?m.

Disclosed are a mold assembly for making alkali metal wax packets, a method for preparing same, and a method for using same. The mold assembly comprises a silicon substrate (10), the silicon substrate (10) comprising a mold isolator (11) at the edge of the silicon substrate (10) and a silicon substrate central portion (18). The upper surface of the silicon substrate central portion (18) is indented to form a plurality of wax packet receiving cavities (12). A cavity isolator (13) locates between adjacent wax packet receiving cavities (12). A release sacrificial layer (15) is formed on the upper surface of the silicon substrate (10), and a paraffin layer (16) is formed on the upper surface of the release sacrificial layer (15) away from the silicon substrate (10). Cavities (121) for containing alkali metal are formed on a side of the paraffin layer (16) away from the release sacrificial layer (15). The mold isolator (11) is provided with corrosion release holes (14). The mold assembly can reliably and controllably achieve batch production of uniform alkali metal wax packet arrays and is completely compatible with MEMS and microelectronic processes, with simple processes that can be easily implemented and high operability. The wax packet mold assembly can be reused, such that wasting of raw materials can be avoided, and the cost of batch production can be effectively reduced.

Disclosed herein are devices, systems, and methods for fabricating alkali vapor cells. The methods disclosed herein comprise depositing a fluid into a reservoir of a device, the device comprising: a reservoir, a set of receptacles, and a set of conduits fluidly connecting each of the receptacles to the reservoir; such that, when a fluid is placed in the reservoir, the fluid flows to each of the receptacles via capillary action. Also disclosed herein are methods comprising flowing a fluid from an inlet to an outlet of a lumen of a main conduit of a device, the device further comprising a set of receptacles, each of the receptacles being in fluid communication with the lumen of the main conduit; such that, when a fluid flows from the inlet to the outlet through the lumen of the main conduit, the fluid further flows into each of the receptacles via capillary action.

A method that prints a functional element on a surface of a receiving area of a timepiece component of a timepiece contributing to regulating the rate of this timepiece includes preparing a solution containing a material constituting the functional element and depositing the prepared solution onto the surface of the receiving area. Specific properties of the solution are defined as a function of preparation criteria and include at least one structural modification feature of the timepiece component, at least one construction feature of the functional element on the receiving area, at least one structural feature of the material to be applied to the receiving area, and at least one feature of the receiving area of the component.

A watch component of the present disclosure includes a substrate, and a multilayer film covering at least a part of the substrate. A plurality of recesses is formed in a surface, of the substrate, facing the multilayer film. In a cross-sectional view obtained by cutting the substrate in a thickness direction, the plurality of recesses is defined by a first side, and a second side tilted with respect to the first side and being in contact with the first side at an end portion. In the cross-sectional view, a ratio of a length of the second side along the thickness direction of the substrate with respect to a length of the second side along a direction orthogonal to the thickness direction of the substrate is greater than ?. The multilayer film includes three or more layers of a color absorption film composed of a material including Cr. A value of a brightness L* in a L*a*b* color space is equal to or less than 10 in plan view as viewed from the thickness direction of the substrate.

The spiral includes turns of rectangular section, whose pitch p and/or thickness e can vary from the inside curve towards the outside curve, or whose winding can deviate from the line of a perfect spiral. The inside curve can also be extended by a self-locking washer for fixing the spiral on the balance arbour with no play. The spiral is manufactured by photolithography and galvanic growth, or by micro-machining an amorphous or crystalline material, such as a silicon wafer.

A method for fabricating an external element or a timepiece dial from non-conductive material, by performing or repeating a basic cycle of making a base from a non-conductive, or ceramic, or glass. or sapphire substrate; dry coating the base with a first sacrificial protective metal layer; etching a decoration with an ultrashort pulse laser to a depth at least equal to the local thickness of the first layer; dry coating the decoration and the remaining part of the first layer with a second metal and/or coloured decorative treatment layer; chemically removing each first layer; and before or after chemical removal of each first layer, mechanically levelling on the upper level of the base the compound thus formed.

Preform and manufacturing process producing heterogeneous components with a first fraction (11) made from a first metallic material and having a cellular structure with stochastic or regular cells, and a second fraction (12) made from a second metallic material different from the first metallic material, in which the second fraction (12) at least partly infiltrates the cells of the first fraction (11). The second fraction is poured into the preform which also acts as a mould. The finished product after machining may have a unified surface of the second fraction or several zones exposing the second fraction, the first fraction, the cellular structure which is open or infiltrated with the second metallic fraction, or open zones, in a predetermined design.

A method for fabricating a timepiece component made of conductive material includes: making a base from conductive material; coating the base with a first layer of sacrificial metal protection material; etching a recessed decoration mechanically or with a laser; coating the first recessed decoration and the remaining part of the first layer with a second metal and/or coloured decorative treatment layer; and removing each first sacrificial metal protection layer by chemical devices, to obtain a blank including a first decoration formed by the remaining part of the second layer.

In manufacturing of a first electroformed component and a second electroformed component having portions fitted to each other into close contact, after the first electroformed component is formed, the first electroformed component is used as a portion of an electroforming mold to form the second electroformed component. Using the first electroformed component as a portion of the electroforming mold to form the second electroformed component, the shape of the first electroformed component is transferred to the second electroformed component. As a result, multiple types of components differing in shape may be accurately manufactured concurrently in a series of manufacturing steps.