The disclosure discloses a flexible copper clad laminate (FCCL) having a high peel strength and a manufacturing method thereof. The FCCL includes: an organic polymer film layer (1), an adjusting layer (2), a transition layer (3) and a copper layer (4).

The present invention provides a printed circuit board fabricated by a Non-Plating Process that includes at least one plating bar disposed around at least one package unit of the printed circuit board. The package unit includes at least one ground line, at least one power line and a plurality of signal lines. The ground line has a first contact pad exposed on a surface of the printed circuit board, and at least one of the ground lines is connected to the plating bar. The power line has a second contact pad exposed on the surface, and at least one of the power lines is connected to the neighboring plating bar. The signal line has a third contact pad exposed on the surface.

A printed circuit board has a double-sided substrate with an insulation layer, a bonding member, a base layer of an aluminum material, and a circuit pattern; a second insulation layer; a second bonding member; a second base layer; a through hole; a zinc substitution layer; a plating layer; and a second circuit pattern.

In one example an electronic device comprises a controller and a chassis comprising a polymer layer, a first metallic layer deposited on a first side of the polymer layer, and a second metallic layer deposited on a second side of the polymer layer, wherein at least one of the first metallic layer or the second metallic layer comprises an electrically functional integrated structure. Other examples may be described.

PROBLEMS TO BE SOLVED: To provide a process for roughening both sides of a copper plate by forming a protrusion with a fine bump shape on the both sides of the copper plate, and then to provide a process for a deterioration of an electroplating solution for plating copper to become hard to progress therein. MEANS FOR SOLVING THE PROBLEMS: First of all, there is designed to be arranged electrodes (3, 3) as a similar pole for therebetween to be opposed to each other in an electroplating copper solution 2, and then to be arranged a copper plate 4 at therebetween. And then at first there becomes to be performed an anodic treatment for generating a copper fine particles on both surfaces of the copper plate 4, by performing an electrolytic process with the copper plate 4 as a positive electrode and the electrodes 3 as negative electrodes. And then thereafter there becomes to be performed a cathodic treatment, by performing an electroplating of copper with the copper plate 4 as a negative electrode and the electrodes 3 as positive electrodes, for the copper fine particles to be fixed onto the surfaces of the copper plate 4. Furthermore, there becomes to be formed the above mentioned protrusion with the fine bump shape thereon, by performing the anodic treatment and then the cathodic treatment as not less than one cycle thereof.

Disclosed is a ceramic substrate manufacturing method in which a copper sheet is etched and then bonded to a ceramic substrate, so that the ceramic substrate has reduced to overall processing time and improved reliability and product lifespan. The disclosed ceramic substrate manufacturing method comprises the steps of: etching a copper sheet so as to prepare a metal substrate; etching a ceramic substrate so as to prepare a unit ceramic substrate; assembling the metal substrate and the unit ceramic substrate; bonding the metal substrate and the unit ceramic substrate so as to form a stack; partially printing a metal paste on the surface of the stack; and sintering the metal paste.

The present disclosure is related to systems and methods for electrochemical process. The system may include a first electrode, a second electrode, an electric field distribution simulation optimizer, an electric field distribution controller, and a signal controller. The first electrode and the second electrode may form an electric field to change a substance on the second electrode. A morphology of the second electrode may be uneven. The first electrode may include an electrically conducting plate. A morphology of the electrically conducting plate may be in conformity with the morphology of the second electrode. A protruding portion of the electrically conducting plate may correspond to a recessing portion of the second electrode. A recessing portion of the electrically conducting plate may correspond to a protruding portion of the second electrode. The electric field distribution controller may be electrically connected to the signal controller and the electric field distribution simulation optimizer, respectively. The signal controller may be electrically connected to the electrically conducting plate. The signal controller may be configured to apply a processing signal to the electrically conducting plate.

A co-axial structure includes a substrate, a first conductive structure, a second conductive structure, and an insulating layer. The substrate includes a first surface. The first conductive structure includes a first circuit deposited on the first surface and a first via penetrating the substrate. The second conductive structure includes a second circuit deposited on the first surface and a second via penetrating the substrate. The first via and the second via extend along a first direction. The first circuit and the second circuit extend along a second direction, and the second direction is perpendicular to the first direction. The insulating layer is located between the first via and the second via. The first conductive structure and the second conductive structure are electrically insulated. The first circuit and the second circuit are coplanar.

The present invention relates to printed circuit boards (PCBs), and more particularly, to methods of forming high aspect ratio through holes and high precision stub removal in a printed circuit board (PCB). The high precision stub removal processes may be utilized in removing long stubs and short stubs. In the methods, multiple holes of varying diameter and depth are drilled from an upper and/or lower surface of the printed circuit board utilizing drills of different diameters.

A circuit board includes first circuit substrate and second circuit substrate; first circuit substrate includes: a first base layer arranged on the first circuit layer and a plurality of first conductive bodies on the substrate layer; the first circuit layer includes a hot pressing area and a non-hot pressing area except the hot pressing area. One end of the first conductive body is electrically connected to the hot pressing area and the other end is exposed to the first base layer; second circuit substrate includes: a second base layer, a second base layer arranged on the second circuit layer and a plurality of second conductive bodies; one end of the second conductive body is electrically connected to the second circuit layer, and the other end is exposed on the second base layer; The body is electrically connected to the second conductive body.