摘要:
The invention relates to a chip arrangement (10) and a method for forming a contact connection (11) between a chip (18), in particular a power transistor or the like, and a conductor material strip (14), said conductor material strip being formed on a non-conductive substrate (12) and the chip being arranged on the substrate or on a conductor material strip (15). A silver paste (29) or copper paste is applied to a chip contact surface (25) of the chip and of the conductor material strip (28), a contact conductor (30) is dipped into the silver paste or the copper paste on the chip contact surface and into the silver paste or the copper paste on the conductor material strip, and a solvent contained in the silver paste or the copper paste is at least partially evaporated by heating. The silver paste or the copper paste is then sintered by means of laser energy, thereby forming the contact connection.
摘要:
The power conversion apparatus 30 uses the semiconductor device 29. Said semiconductor device 29 includes a first group of power semiconductor elements 1a, 1b at least one of which is electrically connected between a first potential 5a and a third potential 6a, a second group of power semiconductor elements 2a-2d at least one of which is electrically connected between a second potential 7a and the third potential 6a, and a third group of power semiconductor elements lc, ld at least one of which is electrically connected between the first potential 5a and the third potential 6a. The second group 2a-2d is disposed between the first group 1a, 1b and third group lc, ld. Thereby, a low-loss semiconductor device 29 having both inductance reducibility and heat generation balancing capability and an electric power conversion apparatus 30 using the same are provided.
摘要:
In a power semiconductor module, a semiconductor device (40) including electrode surfaces for connection on its front side and back side is connected on its back side to a first extraction electrode (60) through soldering (20); a metal surface of one side of a laminated conductor (30) having a laminated structure in which at least two types of metals (32,33) are laminated is directly, intermetallically connected to the front side of the semiconductor device; a second extraction electrode (10) is connected to a metal surface of another side of the laminated conductor through soldering (21); and the laminated conductor (30) includes a plurality of arch-like protrusions (35) and a straight section (36) connecting the arch-like protrusions, the straight section (36) is connected with the front side of the semiconductor device (40), and the protrusions (35) are connected with the second extraction electrode (10).
摘要:
A semiconductor device according to an embodiment is a semiconductor device in which a semiconductor chip mounted on a chip mounting part is sealed by resin and a first member is fixed to a chip mounting surface side between a peripheral portion of the semiconductor chip and a peripheral portion of the chip mounting part. Also, the first member is sealed by the resin. Also, a length of the first part of the chip mounting part in the first direction is larger than a length of the semiconductor chip in the first direction, in a plan view.
摘要:
A ball-bump bonded ribbon-wire interconnect has a ball-bump (16) attached to an integrated circuit's bond pad (14). A ribbon-wire (18) has one end attached to the ball-bump (14) and its opposing end attached to a substrate's metallized surface (22). The ribbon-wire (18) may be wider than the ball-bump (16), and the ball-bump (16) may separate the ribbon-wire (18) from the integrated circuit's surface. The ribbon-wire may interconnect multiple integrated circuits, each of which has a ball-bump or a suitably wide metallized surface, to a substrate's metallized surface. The present invention also includes a method of electrically connecting an electronic component to a substrate.
摘要:
A solderable bar bond connector (16) establishes a primary interconnect between a substrate (12) and a high current terminal (34) of an IC chip (14) mounted on the substrate (12), and one or more secondary interconnects between the substrate (12) and low current terminals (36, 38, 40) of the IC chip (14). The bar bond connector (16) includes a plate portion (18) soldered to the high current terminal (34) of the IC chip (14) and a plurality of leg elements (20-32) extending from the plate portion (18) to multiple bond sites (42, 44, 46, 48) on the substrate (12). The underside of at least one leg element (20/26/32) is provided with a secondary circuit (50/52/54) including a conductor (58) that is electrically isolated from the respective leg element (20/26/32). The conductor (58) of the secondary circuit (50/52/54) is soldered to both the substrate (12) and a low current terminal (36/38/40) of the IC chip (14) for establishing a secondary interconnect in addition to the primary interconnect established by the plate portion (18) and the other leg elements (22, 24, 28, 30).
摘要:
Provided is a semiconductor device of improved reliability and ease of assembly associated with the downsizing thereof, in which a long shelf life of a solder joining a lead frame having a large current capacity and efficient release of heat from the lead frame can be achieved. In the semiconductor device, electronic components (23, 24) on an insulating substrate formed with a metal layer configuring a conductive pattern (12) are electrically connected to each other by a rectangular lead frame (22). In so doing, the lead frame (22) can correctly be positioned by inserting a wire member (27), which is disposed so as to bridge between the electronic components (23, 24), into an opening (21) formed to penetrate through the lead frame (22). Solder plates (28, 29) are sandwiched, respectively, between the electrode surfaces of the electronic components (23, 24) and joints (22a, 22b) of the lead frame (22), and are melted in a subsequent reflow step. The solder plates (28, 29) are provided with slits (28s, 29s) that are sized corresponding to the width of the opening (21) of the lead frame (22).
摘要:
The power conversion apparatus 30 uses the semiconductor device 29. Said semiconductor device 29 includes a first group of power semiconductor elements 1a, 1b at least one of which is electrically connected between a first potential 5a and a third potential 6a, a second group of power semiconductor elements 2a-2d at least one of which is electrically connected between a second potential 7a and the third potential 6a, and a third group of power semiconductor elements lc, ld at least one of which is electrically connected between the first potential 5a and the third potential 6a. The second group 2a-2d is disposed between the first group 1a, 1b and third group 1c, 1d. Thereby, a low-loss semiconductor device 29 having both inductance reducibility and heat generation balancing capability and an electric power conversion apparatus 30 using the same are provided.
摘要:
A power module comprises a heat radiation layer (13) having the first main surface and the second main surface of reverse side opposed to the first main surface, an insulation layer (12) disposed on the first main surface of a radiation layer, a wiring potion for current circuit (11) disposed on the insulation layer and a plurality of switching elements (10) disposed on the insulation layer and electrically connected to the wiring portion of current circuit. A plurality of external terminals (20) are electrically connected to the wiring portions of current circuit. Furthermore, the module has a resin (2) sealing all of the insulation layer, a wiring portion for current circuit, switching elements and the first main surface of the radiation layer, and a resin sealing a portion of the second main surface of the radiation layer with the resin.