A circuit board with a substrate made of silicon includes a silicon substrate made of silicon; an adhering layer which is a gluing layer and is adhered on the silicon substrate; a metal layer formed as a metal plate layer or a metal circuit layer; the metal layer being adhered on the adhering layer; and wherein the metal layer is formed with metal circuits by screen printing. Electronic elements are adhered on the metal layer to form as circuits with specific functions. Materials of the adhering layer contains Organic silicon polyester copolymer resin, Ethyl acetate and Organic silicon resin. Material of the metal layer is selected from copper, aluminum, sliver, and gold. A packaging silicon layer encapsulates the metal layer and the electronic elements for packaging. Material of the metal layer is selected from copper, aluminum, sliver, and gold.

A device source wafer includes a wafer substrate, devices formed on or in the wafer substrate at a location on the wafer substrate, and test structures disposed on the wafer substrate connected to some but not all of the devices. The devices include a first device disposed at a first location and a second device disposed at a second different location on the wafer substrate. The test structures include at least a first test structure connected to the first device and a second test structure connected to the second device. The first test structure is adapted to measuring a characteristic of the first device and the second test structure is adapted to measuring the characteristic of the second device. An estimated characteristic of unmeasured devices is derived from the first and second device locations and measured characteristics and the device is selected based on the estimated characteristic.

A method for manufacturing a multilayer coil includes preparing a first substrate by forming a first conductor pattern on a first insulating base material layer, preparing a second substrate by forming a second conductor pattern on a second insulating base material layer, and joining a surface of the first substrate on which the first conductor pattern is formed and a surface of the second substrate on which the second conductor pattern is formed together with only a joining layer made of a thermoplastic resin interposed therebetween. Amounts of deformation of the first and second insulating base material layers are less than that of the joining layer at a fusion temperature. The first and second conductor patterns are each a coil pattern having a coil axis that extends in a lamination direction in which the first substrate and the second substrate are laminated together.

A circuit board with a substrate made of silicon includes a a silicon substrate made of silicon; an adhering layer which is a gluing layer and is adhered on the silicon substrate; a metal layer formed as a metal plate layer or a metal circuit layer; the metal layer being adhered on the adhering layer. Furthermore, the method for forming the circuit board with silicon substrate is proposed, in that a method for forming a circuit board suitable for etching and a method for forming a circuit board for screen printing are proposed.

A solvent-free method for fabricating conductors is disclosed. A thick patterned layer up to 13 microns containing metal precursor and reducing agent precursor are initially deposited onto a substrate using laser printing technology. The deposited patterned precursor materials are then irradiated with a newly developed high energy intense pulsed light (IPL) system in order to transform the deposited materials to thick conductive metal patterns. The easy metallization of printed patterns makes this invention an especially effective method for massive production of flexible printed circuits.

A wiring board includes a conductor pattern formed on a board, and an insulating film that covers at least part of the conductor pattern. A first insulating film is provided in a first region on the board, the first region covering at least part of the conductor pattern and having a first border segment. A second insulating film is provided in a second region on the board, the second region covering at least part of the first region and having a second border segment. The second border segment is located outside the first region, and the shortest distance from any point belonging to the second border segment to the first border segment is not more than 400 ?m.

The present invention relates to a method for manufacturing a circuit board including the steps of preparing a substrate containing silicon at least at a surface, applying a paste containing aluminum particles onto the substrate, forming a conductor layer on the substrate by firing the substrate to which the paste has been applied, forming a resist film having a specific pattern on the conductor layer, and removing with an etchant, the conductor layer in a portion where the resist film has not been formed, the etchant containing fluoride ions and metal ions of a metal M of which standard electrode potential is higher in value than a standard electrode potential of aluminum, and to a circuit board which can be manufactured with such a method.

A circuit board element includes a glass substrate, a first dielectric layer, and a first patterned metal layer. The glass substrate has an edge. The first dielectric layer is disposed on the glass substrate and has a central region and an edge region. The edge region is in contact with the edge of the glass substrate, and the thickness of the central region is greater than the thickness of the edge region. The first patterned metal layer is disposed on the glass substrate and in the central region of the first dielectric layer.

A touch display module, a manufacturing method thereof and a display device are provided. The touch display module includes a display panel and a touch module attached to the display panel; the touch module includes a touch region provided with a touch electrode and a border region provided with a black matrix, and the touch module includes a base substrate and includes a first anti-shadow layer and a second anti-shadow layer which are at a side, close to the display panel, of the base substrate; the first anti-shadow layer is between the touch electrode and the base substrate; the second anti-shadow layer is at a side, away from the base substrate, of the touch electrode; and in a dark state display mode, a color difference between the touch region and the border region is smaller than a preset value.

A piezochromic stamp is provided, wherein when a pressing side of the piezochromic stamp is subjected to a pressure, a light transmittance effect of the pressing side is changed from allowing a light having a specific wavelength to pass through to blocking the light having the specific wavelength, or the light transmittance effect of the pressing side is changed from blocking the light having the specific wavelength to allowing the light having the specific wavelength to pass through.