摘要:
A method for effecting high density solder interconnects between a substrate and at least one metalized film having through holes therein is provided. Solder is first applied to metalized portions of the substrates and the solder is then subject to a reflow process to provide reflowed solder. Pressure is applied to the reflowed solder during a second reflow process to provide prestressed or shaped solder. The metalized film is then positioned with at least one metalized portion adjacent to the shaped solder. Heat, as from a laser, is directed through the through holes in the film to melt the solder and form solder interconnections between the substrate and the metalized film.
摘要:
A system for connecting a semiconductor chip carrier to a printed circuit card is described. The semiconductor chip carrier has a flexible, extendable wiring membrane attached to the bottom thereof which extends beyond the periphery of the semiconductor chip carrier and in the area beyond the periphery is provided with electrical contacts. The electrical contacts are mated to complementary contacts in a printed circuit card which is biased from the semiconductor chip carrier by electrical and thermal contact means. The membrane, inter alia, provides high density electrical contact between the semiconductor and printed circuit card. Various elements thereof and a process for forming the same are described.
摘要:
An electronics module (100), especially a power electronics module, comprising
a metal-ceramic substrate (1) serving as a carrier and having a ceramic element (10) and a primary component metallization (21), an insulation layer (40) directly or indirectly connected to the primary component metallization (21), and a secondary component metallization (22) which is connected to the side of the insulation layer (40) facing away from the metal-ceramic substrate (1) and is especially isolated from the primary component metallization (21) using the insulation layer (40), wherein the ceramic element (10) has a first size (L1, D1) and the insulation layer (40) has a second size (L2, D2) and a ratio of the second size (L2, D2) to the first size (L1, D1) has a value smaller than 0.8, to form an island-like insulation layer (40) on the primary component metallization (21).
摘要:
A semiconductor device includes a first circuit base member including a surface having multiple first electrodes formed thereon, a second circuit base member being provided above the first circuit base member and having first through holes and second through holes formed respectively above the first electrodes, a semiconductor package provided above the second circuit base member, and multiple first bumps provided inside the first through holes and the second through holes to connect the first electrodes to the semiconductor package.
摘要:
Printed circuits may be electrically and mechanically connected to each other using connections such as solder connections. A first printed circuit such as a rigid printed circuit board may have solder pads and other metal traces. A second printed circuit such as a flexible printed circuit may have openings. Solder connections may be formed in the openings to attach metal traces in the flexible printed circuit to the solder pads on the rigid printed circuit board. A ring of adhesive may surround the solder connections. The flexible printed circuit may be attached to the rigid printed circuit board using the ring of adhesive. An insulating tape may cover the solder connections. A conductive shielding layer with a conductive layer and a layer of conductive adhesive may overlap the solder joints. The conductive adhesive may connect the shielding layer to the metal traces on the rigid printed circuit board.
摘要:
Printed circuits may be electrically and mechanically connected to each other using connections such as solder connections. A first printed circuit such as a rigid printed circuit board may have solder pads and other metal traces. A second printed circuit such as a flexible printed circuit may have openings. Solder connections may be formed in the openings to attach metal traces in the flexible printed circuit to the solder pads on the rigid printed circuit board. A ring of adhesive may surround the solder connections. The flexible printed circuit may be attached to the rigid printed circuit board using the ring of adhesive. An insulating tape may cover the solder connections. A conductive shielding layer with a conductive layer and a layer of conductive adhesive may overlap the solder joints. The conductive adhesive may connect the shielding layer to the metal traces on the rigid printed circuit board.
摘要:
The present disclosure relates to a conductive structure. The conductive structure includes a first conductive layer, a conductive unit, a circuit board and a conductive material. The conductive unit is disposed on the first conductive layer. The circuit board having a first through hole is disposed on the first conductive layer. The conductive unit is exposed to the first through hole. The first through hole is filled with a conductive material, such that the conductive material is electrically connected to the conductive unit.
摘要:
A multi-chip stack module provides increased circuit density for a given surface chip footprint. Support structures are alternated with standard surface mount type chips to form a stack wherein the support structures electrically interconnect the chips. One aspect is a structure and method for interconnecting a plurality of generally planar chips in a vertical stack such that signals, which are common to the chips, are connected in the stack and signals, which are accessed individually, are separated within the stack.
摘要:
A wiring connecting structure for a piezoelectric element is capable of performing wiring to the piezoelectric element without deteriorating the quality and reliability of the piezoelectric element. The piezoelectric element is arranged between a base and head of an object, to minutely move the head in a sway direction according to deformation that occurs on the piezoelectric element in response to a voltage applied from a terminal to an electrode of the piezoelectric element. The wiring connecting structure includes first and second liquid stoppers arranged between the terminal and the electrode, the second liquid stopper being arranged outside the first liquid stopper. The wiring connecting structure also includes an adhesive part to connect the electrode to the terminal. The adhesive part has a conductive adhesive part defined by the first liquid stopper and a sealing adhesive part defined by the second liquid stopper. The sealing adhesive part seals the first liquid stopper and conductive adhesive part.
摘要:
The present disclosure relates to a conductive structure. The conductive structure includes a first conductive layer, a conductive unit, a circuit board and a conductive material. The conductive unit is disposed on the first conductive layer. The circuit board having a first through hole is disposed on the first conductive layer. The conductive unit is exposed to the first through hole. The first through hole is filled with a conductive material, such that the conductive material is electrically connected to the conductive unit.