Patent classifications
H01L2224/84214
SEMICONDUCTOR DEVICES AND METHODS OF MANUFACTURING SEMICONDUCTOR DEVICES
A method includes providing a substrate having substrate terminals and providing a first component having a first terminal and a second terminal. The method includes providing a clip structure having a first clip, a second clip, and a clip connector coupling the first clip to the second clip. The method includes coupling the first clip to the first terminal and a substrate terminal and coupling the second clip to another substrate terminal. The method includes encapsulating the structure and removing a portion of the clip connector. In some examples, the first portion of the clip connector includes a first portion surface, the second portion of the clip connector includes a second portion surface, and the first portion surface and the second portion surface are exposed from a top side of the encapsulant. Other examples and related structures are also disclosed herein.
Laser welding machine and laser welding method using the same
A laser welding machine includes: an elevator that is capable of sliding an elevating platform; a pressing actuator that is fixed to the elevating platform at a base part of the pressing actuator and has a tip slidably connected to the base part and pressing a conductive upper terminal toward a conductive lower terminal; a laser oscillator; a machining optical device that is fixed to the elevating platform and has a lens to focus the laser light emitted from the laser oscillator; a position detector that detects a vertical positioning of the pressing actuator; a counter that receives an output of the position detector and delivers position information; and a control circuit that controls, based on the received signal from the counter, the elevator, the pressing actuator, and the machining optical device, and controls operation of the laser oscillator.
Method for manufacturing semiconductor module and intermediate assembly unit of the same
A method for manufacturing a semiconductor module includes the step of soldering two or more semiconductor elements having substrate materials and heights different from each other to a metal foil disposed at one side of an insulating substrate; connecting a plurality of wiring members, not interconnecting the semiconductor elements, to front face electrodes of the semiconductor elements through solder so that heights from a surface of the insulating substrate to top faces of the wiring members become same level with each other; inspecting a leakage current while applying electricity on each one of semiconductor elements individually through the wiring members; and connecting the top faces of the wiring members with a bus bar.
SEMICONDUCTOR DEVICES AND METHODS OF MANUFACTURING SEMICONDUCTOR DEVICES
In one example, a method of manufacturing a semiconductor device includes providing a substrate having substrate terminals and providing a component having a first component terminal and a second component terminal adjacent to a first major side of the component. The method includes providing a clip structure having a first clip, a second clip, and a clip connector coupling the first clip to the second clip. The method includes coupling the first clip to the first component terminal and a first substrate terminal and coupling the second clip to a second substrate terminal. The method includes encapsulating the component, portions of the substrate, and portions of the clip structure. the method includes removing a sacrificial portion of the clip connector while leaving a first portion of the clip connector attached to the first clip and leaving a second portion of the clip connector attached to the second clip. In some examples, the first portion of the clip connector includes a first portion surface, the second portion of the clip connector includes a second portion surface, and the first portion surface and the second portion surface are exposed from a top side of the encapsulant after the removing. Other examples and related structures are also disclosed herein.
Semiconductor module mounted on a cooling device for use in a vehicle
A semiconductor module includes a semiconductor device, and a cooling device. The semiconductor device has: an input terminal; a wiring portion that includes a first end portion, and a second end portion, and extends in one direction, the first end portion being connected to the input terminal; a circuit substrate that includes a top surface, and a bottom surface, the top surface being provided with a first circuit board and a second circuit board along the one direction, the bottom surface being arranged on a top surface of the cooling device; a metal body connected between the wiring portion, and a top surface of the first circuit board; and a semiconductor chip that includes a top surface electrode, and a bottom surface electrode, the top surface electrode being connected to the second end portion, the bottom surface electrode being connected to a top surface of the second circuit board.
SEMICONDUCTOR DEVICE AND METHOD FOR FABRICATING THE SAME
A method for fabricating a semiconductor device includes providing a semiconductor die, arranging an electrical connector over the semiconductor die, the electrical connector including a conductive core, an absorbing feature arranged on a first side of the conductive core, and a solder layer arranged on a second side of the conductive core, opposite the first side and facing the semiconductor die, and soldering the electrical connector onto the semiconductor die by heating the solder layer with a laser, wherein the laser irradiates the absorbing feature and absorbed energy is transferred from the absorbing feature through the conductive core to the solder layer.
SEMICONDUCTOR DEVICE
Semiconductor device A1 of the present disclosure includes: semiconductor element 10 (semiconductor elements 10A and 10B) having element obverse face and element reverse face facing toward opposite sides in z direction; support substrate 20 supporting semiconductor element 10; conductive block 60 (first block 61 and second block 62) bonded to element obverse face via first conductive bonding material (block bonding materials 610 and 620); and metal member (lead member 40 and input terminal 32) electrically connected to semiconductor element 10 via conductive block 60. Conductive block 60 has a thermal expansion coefficient smaller than that of metal member. Conductive block 60 and metal member are bonded to each other by a weld portion (weld portions M4 and M2) at which a portion of conductive block 60 and a portion of metal member are welded to each other. Thus, the thermal cycle resistance can be improved.
SEMICONDUCTOR DEVICE WITH A LASER-CONNECTED TERMINAL
A semiconductor device, including a capacitor, a semiconductor module having a first power terminal formed on a front surface of a first insulating member, and a connecting member electrically connecting and mechanically coupling the semiconductor module and the capacitor to each other, the connecting member having a front surface and a rear surface opposite to each other, the rear surface being on a front surface of the first power terminal. The connecting member is bonded to the semiconductor module via a first welded portion, which penetrates the front and rear surfaces of the connecting member, and penetrates the front surface of the first power terminal, in a thickness direction of the semiconductor device, a distance in the thickness direction between a bottommost portion of first welded portion and the front surface of the first insulating member being 0.3 mm or more.
SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING SEMICONDUCTOR DEVICE
A semiconductor device A1 includes a semiconductor element 10A having an element obverse face 101 and an element reverse face 102, the element obverse face 101 having an obverse face electrode 11 formed thereon and the element reverse face 102 having a reverse face electrode 12 formed thereon, a conductive substrate 22A including an obverse face 221A opposed to the element reverse face 102, and to which the reverse face electrode 12 is conductively bonded, a conductive substrate 22B including an obverse face 221B and spaced from the conductive substrate 22A in a width direction x, and a lead member 51 extending in the width direction x, and electrically connecting the obverse face electrode 11 and the conductive substrate 22B. The lead member 51 is located ahead of the obverse face 221B in the direction in which the obverse face 221B is oriented, and bonded to the obverse face electrode 11 via a lead bonding layer 32. The conductive substrate 22A, the semiconductor element 10A, and the lead bonding layer 32 overlap with the conductive substrate 22B, as viewed in the width direction x.
SEMICONDUCTOR DEVICE AND BONDING METHOD
Semiconductor device A1 of the disclosure includes: semiconductor element 11 having element obverse surface 11a and element reverse surface 11b spaced apart from each other in z direction (first direction) with first region 111 formed on the element obverse surface 11a; metal plate 31 (electrode member) disposed on the element obverse surface 11a and electrically connected to the first region 111; electrically conductive substrate 22A (first conductive member) disposed to face the element reverse surface 11b and bonded to the semiconductor element 11; electrically conductive substrate 22B (second conductive member) spaced apart from the conductive substrate 22A (first conductive member); and lead member 5 (connecting member) electrically connecting the metal plate 31 (electrode member) and the conductive substrate 22B (second conductive member). The lead member 5 (connecting member) is bonded to the metal plate 31 (electrode member) by laser welding. The semiconductor device of this configuration provides improved reliability.