摘要:
A manufacturing process of a high-power LED radiating structure includes steps of: (1) preparing parts or material such as a PCB board (4), a heat conducting plate (6) and a heat dissipating plate (9); (2) providing a first locating hole and a first fixing hole passing through the PCB board, welding a copper plate layer on one side of the PCB board, and welding an electrode weld pad on the other side of the PCB board, and then applying soldering paste on the surface of the copper plate layer; (3) providing a second locating hole and a second fixing hole passing through the heat conducting plate; (4) inserting a fixing pole into the first and second fixing holes to fixedly connect the PCB board and the heat conducting plate together; (5) inserting the heat conducting pole into the first and second locating holes; (6) proving the heat conducting plate and the PCB board resulted from step (5) on a stamping equipment, and adjusting the length of the protruding end of the heat conducting pole. The inventive process is simple, and the manufactured dissipating structure is advantageous for a simple construction and good heat conducting and dissipating effects.
摘要:
An electronic device including a first ground conductor layer positioned at an underside of a first insulation layer; a second ground conductor layer positioned at an upper side of the first insulation layer; a second insulation layer positioned at an upper side of the second ground conductor layer; a first connection pattern formed in inside wall of a first opening penetrating the first insulation layer and the second insulation layer and interconnecting the first ground conductor layer and the second ground conductor layer; a conductive member provided in the first opening and connected to the first ground conductor layer; and an electronic element mounted on the member and grounded to the member.
摘要:
Verfahren zur Bestückung einer Leiterplatte (1), die mindestens eine ein- oder beidseitig kupferkaschierte oder mit Leiterbahnen versehene Lage (2) aufweist, wobei in einem Montageschritt mindestens ein starrer Flanscheinsatz (4) in eine zugeordnete Aussparung (5, 6) in der Leiterplatte (1) oder in einem der Leiterplatte (1) zugeordneten Bauteil eingesetzt wird und wobei in einem nachfolgenden Applikationsschritt auf den eingesetzten Flanscheinsatz (4) mindestens ein Halbleiter-Nacktchip (7) eines Halbleiter-Bauteils appliziert wird.
摘要:
A thermal pad (602,612,622,702,712) formed on a Printed Circuit Board and a method (900) of formed the thermal pad (602,612,622,702,712) are provided. The thermal pad (602,612,622,702,712) comprises in its interior one or more coins (604,614,624,704,714) has a height equal to a thickness of the PCB, and is made of metal or alloy, inserted into a corresponding one of one or more plated cutouts straight through the PCB in the thermal pad, and bonded to side walls of the corresponding one of the one or more plated cutouts with a paste capable of resisting a temperature of 250° C or above. The plurality of through via (606,616,626,706,716) are plated, and lugged with a solder mask. The thermal pad (602,612,622,702,712) has a flat top surface and a flat bottom surface, either of which is coplanar with a corresponding one of top and bottom surfaces of the PCB. A PCB having formed thereon the above thermal pad (602,612,622,702,712) is also provided.
摘要:
A light emitting diode is provided, including an LED chip, a reflector, a lens, a circuit plate, a circuit substrate and an electrical conductivity device. The LED chip is disposed in the reflector and the lens is disposed on the reflector, covering the reflector and the LED chip. The LED chip is electrically connected to the circuit plate. The circuit plate further includes a first through hole therein and the circuit substrate further includes a second through hole therein. The electrical conductivity device passes through the first through hole and the second through hole so that the circuit plate is electrically connect to the circuit substrate. The reflector is installed between the circuit plate and the circuit substrate. The first through hole and the second through hole are not connected to the reflector.
摘要:
A print circuit board including a dielectric substrate (12) having via-holes (16) perforated therethrough, an implant material (15) filled in the via-holes (16) and selected from a group consisting of oxygen free copper, phosphorus-deoxidized copper and tough pitch copper, and interconnect patterns formed on both surfaces of the substrate (12) and electrically connected to the implant material (15). The probability of generating the deficiencies in the print circuit board of the present invention is reduced under the conditions of the repeated heating and cooling between higher temperatures and lower temperatures to which the print circuit board is likely exposed because the via-holes (16) are made of the highly resistant oxygen free copper, phosphorus-deoxidized copper or tough pitch copper, and the print circuit board is used for a longer period of time as a highly heat-resistant print circuit board.
摘要:
The invention concerns a module comprising a metal substrate (10) based on aluminium and at least one bar (12) forming an equipotential connection made of a copper-based material, fixed to the substrate via an insulating layer. A power component (16) is in direct contact with the bar on a surface lower than that of the insulating layer. A printed circuit card (18) mounted on the bar or bars and by overlap bears the reduced heat dissipating components of the module.