Abstract: A circuit board includes an inner circuit substrate and an outer circuit substrate electrically connected to the inner circuit substrate. The outer circuit substrate includes an outer dielectric layer and an outer circuit layer facing the inner circuit substrate embedded in the outer dielectric layer. A portion of the outer circuit layer facing away from the inner circuit substrate protruding from the outer dielectric layer. The circuit board can increase contact area between the outer circuit layer and the outer dielectric layer, improving adhesion between the outer circuit layer and the outer dielectric layer, and reducing a thickness of the outer circuit substrate, thereby reducing the overall thickness of the circuit board.

Abstract: A method for manufacturing a circuit board embeds a portion of an outer circuit layer in an outer dielectric layer which increases contact area between the outer circuit layer and the outer dielectric layer, improving adhesion between the outer circuit layer and the outer dielectric layer, and reducing a thickness of the outer circuit substrate, thereby reducing the overall thickness of the finished circuit board.

Abstract: A method for manufacturing a circuit board comprises steps of providing a single-sided board comprising a first insulating base, a copper layer, and at least one first conductive structure; providing a laminated board comprising a metal layer, a third insulating base, a metal shielding layer, and a second insulating base; forming a wiring layer by the metal layer comprising at least one signal wire and at least one connecting pad; defining at least one second through hole each passing through the second insulating base, the metal shielding layer, and the third insulating base; forming a second conductive structure in each second through hole; providing a double-sided board comprising a wiring layer, a fourth insulating base, a first copper foil; and at least one third conductive structure; pressing the single-sided board, at least one middle structure, and the double-sided board in that sequence to form the circuit board.

Abstract: A method for manufacturing a circuit board embeds a portion of an outer circuit layer in an outer dielectric layer which increases contact area between the outer circuit layer and the outer dielectric layer, improving adhesion between the outer circuit layer and the outer dielectric layer, and reducing a thickness of the outer circuit substrate, thereby reducing the overall thickness of the finished circuit board.

Abstract: An interposer, which is used to connect two circuit boards, includes an inner structure (10), an outer structure (20), and a protective layer (50). The inner structure (10) includes a first base layer (11) and a first wiring layer (131) formed on the first base layer (11). The outer structure (20) includes a second base layer (21) and a second wiring layer (231) formed on the second base layer (21). An end portion of at least wiring line of the first wiring layer (131) and the second wiring layer (231) extends to a sidewall of the interposer (100). An end of another wiring line extends to the other sidewall of the interposer (100). The first wiring layer (131) is electrically connected to the second wiring layer (231) by a conductive blind hole (41).

Abstract: A method for manufacturing a circuit board comprises steps of providing a single-sided board comprising a first insulating base, a copper layer, and at least one first conductive structure; providing a laminated board comprising a metal layer, a third insulating base, a metal shielding layer, and a second insulating base; forming a wiring layer by the metal layer comprising at least one signal wire and at least one connecting pad; defining at least one second through hole each passing through the second insulating base, the metal shielding layer, and the third insulating base; forming a second conductive structure in each second through hole; providing a double-sided board comprising a wiring layer, a fourth insulating base, a first copper foil; and at least one third conductive structure; pressing the single-sided board, at least one middle structure, and the double-sided board in that sequence to form the circuit board.

Abstract: A circuit board includes a multilayer wiring board including a first wiring board and a second wiring board. A receiving cavity penetrates the second wiring board and corresponds to at least one connecting pad of the first wiring board. The receiving cavity includes a receiving portion penetrating the second wiring board and a plurality of recessed portions. Each recessed portion penetrates the second wiring board and is recessed from an inner wall defining the receiving portion. A width of each recessed portion gradually increases from a surface of the second wiring board facing the first wiring board toward a surface of the second wiring board facing away from the first wiring board. An electronic component is received in the receiving cavity and electrically connected to the at least one connecting pad. An adhesive fills in a gap between the electronic component and the second wiring board.

Abstract: A package circuit structure includes a metal board including a first surface and a second surface, a plurality of embedded components, an insulating layer, and two antenna circuit boards. At least one first groove is recessed from the first surface. At least one second groove is recessed from the second surface. The first groove and the second groove are spaced with each other along a first direction perpendicular to a thickness direction of the metal board. Each embedded component is mounted in the first groove or the second groove. The insulating layer covers the first surface and the second surface and fills the first groove and the second groove. The antenna circuit boards are respectively stacked on two opposite sides of the insulating layer. Each antenna circuit board includes at least one antenna and at least one ground wiring. The metal board is electrically connected to each ground wiring.

Abstract: A package circuit structure includes a metal board including a first surface and a second surface, a plurality of embedded components, an insulating layer, and two antenna circuit boards. At least one first groove is recessed from the first surface. At least one second groove is recessed from the second surface. The first groove and the second groove are spaced with each other along a first direction perpendicular to a thickness direction of the metal board. Each embedded component is mounted in the first groove or the second groove. The insulating layer covers the first surface and the second surface and fills the first groove and the second groove. The antenna circuit boards are respectively stacked on two opposite sides of the insulating layer. Each antenna circuit board includes at least one antenna and at least one ground wiring. The metal board is electrically connected to each ground wiring.

Abstract: A circuit board includes a multilayer wiring board including a first wiring board and a second wiring board. A receiving cavity penetrates the second wiring board and corresponds to at least one connecting pad of the first wiring board. The receiving cavity includes a receiving portion penetrating the second wiring board and a plurality of recessed portions. Each recessed portion penetrates the second wiring board and is recessed from an inner wall defining the receiving portion. A width of each recessed portion gradually increases from a surface of the second wiring board facing the first wiring board toward a surface of the second wiring board facing away from the first wiring board. An electronic component is received in the receiving cavity and electrically connected to the at least one connecting pad. An adhesive fills in a gap between the electronic component and the second wiring board.

Abstract: A method for manufacturing a circuit board with a small size a communication unit comprising a radio frequency (RF) component, an antenna, and an encapsulation layer. The RF component is embedded in the encapsulation layer, the antenna is positioned on the encapsulation layer and electrically connected to the RF component. A rigid substrate is formed on a flexible substrate, and a receiving groove is defined in the rigid substrate to expose the flexible substrate. The communication unit is in the receiving groove, thus causing connection between the RF component and the flexible substrate, thereby the circuit board is formed.

Abstract: A rigid-flex circuit board includes a core substrate, a first adhesive layer, and a first outer conductive circuit layer. The core substrate includes a first and a second base layer, a first and a second conductive circuit layer respectively on the first and second base layer, and an insulating layer between the first and second base layer. The first and second conductive circuit layer are embedded in the insulating layer. The first adhesive layer is on the first base layer and defines a first opening which exposes the first opening. The first outer conductive circuit layer is on the first adhesive layer and defines an opening aligned with the first opening. A portion of the core substrate located within the first opening is defined as a flexible board section, and the portions of the core substrate located outside of the first opening are defined as a hard board section.

Abstract: A method for manufacturing a circuit board with a small size a communication unit comprising a radio frequency (RF) component, an antenna, and an encapsulation layer. The RF component is embedded in the encapsulation layer, the antenna is positioned on the encapsulation layer and electrically connected to the RF component. A rigid substrate is formed on a flexible substrate, and a receiving groove is defined in the rigid substrate to expose the flexible substrate. The communication unit is in the receiving groove, thus causing connection between the RF component and the flexible substrate, thereby the circuit board is formed.

Abstract: A circuit board with anti-EMI proofing for each component on the board includes a first outer wiring layer, electronic components mounted on the first outer wiring layer, and at least one electromagnetic shielding unit. Each electromagnetic shielding unit has a shielding layer and conductive posts formed on the shielding layer, the shielding layer and conductive posts defining a receiving space to house and shield one of the electronic components. An adhesive layer formed on the first outer wiring layer bonds each electromagnetic shielding unit to the first outer wiring layer.

Abstract: A circuit board includes a circuit substrate, a heat dissipation dielectric film and a ground circuit board stacked orderly. At least one conductive structure passes through the heat dissipation dielectric film to electrically connect the circuit substrate and the ground circuit board. An insulating layer is disposed on a side of the circuit substrate facing away from the heat dissipation dielectric film. The circuit board further includes at least one connecting unit. Each connecting unit passes through the insulating layer to be electrically connected to the circuit substrate. A height of each connecting unit is gradually increased from a center of the connecting unit to a periphery of the connecting unit. A method for manufacturing a circuit board is provided.

Abstract: A circuit board with anti-EMI proofing for each component on the board includes a first outer wiring layer, electronic components mounted on the first outer wiring layer, and at least one electromagnetic shielding unit. Each electromagnetic shielding unit has a shielding layer and conductive posts formed on the shielding layer, the shielding layer and conductive posts defining a receiving space to house and shield one electronic component. An adhesive layer formed on the first outer wiring layer bonds each electromagnetic shielding unit to the first outer wiring layer.

Abstract: A method for manufacturing a circuit board comprises steps of providing a single-sided board comprising a first insulating base, a copper layer, and at least one first conductive structure; providing a laminated board comprising a metal layer, a third insulating base, a metal shielding layer, and a second insulating base; forming a wiring layer by the metal layer comprising at least one signal wire and at least one connecting pad; defining at least one second through hole each passing through the second insulating base, the metal shielding layer, and the third insulating base; forming a second conductive structure in each second through hole; providing a double-sided board comprising a wiring layer, a fourth insulating base, a first copper foil; and at least one third conductive structure; pressing the single-sided board, at least one middle structure, and the double-sided board in that sequence to form the circuit board.

Abstract: A rigid-flex circuit board includes a core substrate, a first adhesive layer, and a first outer conductive circuit layer. The core substrate includes a first and a second base layer, a first and a second conductive circuit layer respectively on the first and second base layer, and an insulating layer between the first and second base layer. The first and second conductive circuit layer are embedded in the insulating layer. The first adhesive layer is on the first base layer and defines a first opening which exposes the first opening. The first outer conductive circuit layer is on the first adhesive layer and defines an opening aligned with the first opening. A portion of the core substrate located within the first opening is defined as a flexible board section, and the portions of the core substrate located outside of the first opening are defined as a hard board section.

Abstract: A circuit board includes at least two circuit board units. Each of the circuit board units includes a baseboard having a conductive hole filled with an electrical conductor, and a cover layer arranged on the baseboard and defining at least one trench and at least one opening. The at least one opening exposes out the electrical conductor. A circuit pattern is embedded in the at least one trench and includes a connecting portion. The connecting portion is embedded in the opening and is electrically coupled to the electrical conductor. The at least two circuit board units are stacked. Two sides of the at least one cover layer are respectively adhered to the corresponding baseboard. Two ends of the at least one connecting portion are respectively electrically coupled to the corresponding electrical conductor and electrically coupled the two adjacent circuit patterns.

Abstract: A rigid-flex circuit board includes a core substrate, a first outer conductive circuit layer, and a second outer conductive circuit layer. The core substrate includes a first base layer and a second base layer. A first conductive circuit layer is formed on a surface of the first base layer, and a second conductive circuit layer is formed on a surface of the second base layer. An insulating layer is located between the first base layer and the second base layer. The first conductive circuit layer and the second conductive circuit layer are embedded within the insulating layer. A portion of the core substrate located within the first opening and the second opening is defined as a flexible board section, and the portions of the core substrate located outside of the first opening and the second opening are defined as a hard board section.