Abstract:
A method of manufacturing a semiconductor apparatus according to the invention includes the steps of: coating solder 31 on an predetermined area in the upper surface of lead frame 30; mounting chip 32 on solder 31; melting solder 31 with hot plate 33 for bonding chip 32 to lead frame 30; wiring with bonding wires 34; turning lead frame 30 upside down; placing lead frame 30 turned upside down on heating cradle 35; coating solder 36, the melting point of which is lower than the solder 31 melting point; mounting electronic part 37 on solder 36; and melting solder 36 with heating cradle 35 for bonding electronic part 37 to lead frame 30. The bonding with solder 36 is conducted at a high ambient temperature. The semiconductor apparatus and the manufacturing method thereof facilitate mounting semiconductor devices and electronic parts on both surfaces of a lead frame divided to form wiring circuits without through complicated manufacturing steps.
Abstract:
LED chip packaging assembly that facilitates an integrated method for mounting LED chips as a group to be pre-wired to be electrically connected to each other through a pattern of extendable metal wiring lines is provided. LED chips which are electrically connected to each other through extendable metal wiring lines, replace pick and place mounting and the wire bonding processes of the LED chips, respectively. Wafer level MEMS technology is utilized to form parallel wiring lines suspended and connected to various contact pads. Bonding wires connecting the LED chips are made into horizontally arranged extendable metal wiring lines which can be in a spring shape, and allowing for expanding and contracting of the distance between the connected LED chips. A tape is further provided to be bonded to the LED chips, and extended in size to enlarge distance between the LED chips to exceed the one or more prearranged distances.
Abstract:
The invention relates to a strip-type substrate (10) consisting of a foil (15) comprising a number of substrate units (11) for producing chip card modules, the substrate (10) having an inner face (13) for at least partial direct or indirect contacting of a semiconductor chip and an outer face (12) lying opposite the inner face (13). According to the invention, the foil (15) consists of steel, in particular high-grade steel, and a first layer (21) of nickel or a nickel alloy is provided on at least some sections of the outer face (12).
Abstract:
A lead frame includes: a second terminal that is disposed to surround terminals on a package plane and can be grounded; and a conductive member that covers molded resin and is electrically connected to the second terminal.
Abstract:
Provided are a semiconductor device and a bidirectional field effect transistor which can easily overcome the tradeoff relation between the high voltage resistance and high speed in the semiconductor device using a polarization super junction, realize both the high voltage resistance and elimination of the occurrence of current collapse, operate at a high speed, and further the loss is low. The semiconductor device comprises a polarization super junction region and a p-electrode contact region. The polarization super junction region comprises an undoped GaN layer 11, an undoped Al x Ga 1-x N layer 12 with a thickness not smaller than 25nm and not larger than 47nm and 0.17‰¤x‰¤0.35, an undoped GaN layer 13 and a p-type GaN layer 14. When the reduced thickness tR is defined as tR=u+v(1+w×10 -18 ) for the thickness u [nm] of the undoped GaN layer 13, the thickness v [nm] and the Mg concentration w[cm -3 ] of the p-type GaN layer 14, tR‰¥0.864/(x-0.134)+46.0 [nm] is satisfied. The p-electrode contact region comprises a p-type GaN contact layer formed to be in contact with the p-type GaN layer 14 and a p-electrode that is in contact with the p-type GaN contact layer.
Abstract translation:本发明提供一种半导体器件和双向场效应晶体管,其能够容易地克服使用偏振超结的半导体器件中高压电阻与高速度之间的折衷关系,实现高电压电阻和消除电流崩溃的发生 ,高速运转,损失更低。 该半导体器件包括极化超结区和p电极接触区。 偏振超结区包括未掺杂的GaN层11,厚度不小于25nm且不大于47nm和0.17‰x‰0.35的未掺杂的Al x Ga 1-x N层12,未掺杂的GaN层13和 p型GaN层14.当对于未掺杂的GaN层13的厚度u [nm],将减小的厚度t R定义为t R = u + v(1 + w×10 -18)时,厚度v [nm] 并且p型GaN层14的Mg浓度w [cm -3]满足tR≥0.864/(x-0.134)+46.0 [nm]。 p电极接触区域包括形成为与p型GaN层14接触的p型GaN接触层和与p型GaN接触层接触的p电极。
Abstract:
A method of dividing a two dimensional array of encapsulated integrated circuits into individual integrated circuit packages uses a first series of parallel cuts (32) extending fully through the leadframe (16) and encapsulation layer (14), and defining rows of the array. The cuts terminate before the beginning and end of the rows such that the integrity of the array is maintained by edge portions (34) at the ends of the rows. After plating contact pads (18), a second series of parallel cuts (36) is made extending fully through the leadframe (16) and encapsulation layer (14). This separates the array into columns thereby providing singulation of packages between the edge portions (34).
Abstract:
A stacked integrated circuit (IC) system including a substrate, a contour support, and a first and second IC dies. The contour support including a first support frame attached to the substrate defining a first lateral contact surface substantially orthogonal to the substrate, a support plate on the first support frame substantially parallel to the substrate, and a second support frame on the support plate defining a second lateral contact surface substantially orthogonal to the substrate, with the first and second lateral contact surfaces laterally offset from each other. The first integrated circuit die with a side abutting the first lateral contact surface, the second integrated circuit die with a side abutting the second lateral contact surface such that at least a portion of the support plate is between the first and second integrated circuit dies.
Abstract:
A conductor pad and a flexible circuit including a conductor pad are provided. The conductor pad includes a first contact region, a second contact region, and a body portion configured to establish a conductive path between the first contact region and the second contact region. The body portion includes a perimeter edge having at least a first convex segment and a second convex with a first non-convex segment disposed between the first convex segment and the second convex segment. A method of constructing a flexible circuit to facilitate roll-to-roll manufacturing of the flexible circuit is also provided.
Abstract:
To provide a semiconductor module that has high reliability of electric connection by a solder and is inexpensive. A joint surface of an electrode-jointing portion (36bb) that is opposed to a surface to be jointed of a gate electrodes (G) of a bare-chip FET (35) and a joint surface of a substrate-jointing portion (36bc) that is opposed to a surface to be jointed of another wiring pattern (33c) include an outgas releasing mechanism that makes outgas generated from a molten solder during solder jointing of a metal plate connector. (3Gb) be released from solders (34c and 34f) interposed between the joint surfaces and the surfaces to be jointed.
Abstract:
The invention concerns a method for producing a printed circuit for a chip card module. This method involves producing two layers of electrically conductive material insulated from each other by a layer of insulating material, connection holes extending through the layer of insulating material and blocked by one of the layers of electrically conductive material, an area free of conductive material being provided in the other layer of electrically conductive material around the connection holes. The invention also concerns a printed circuit for a chip card produced using this method and a chip card module comprising such a printed circuit.