摘要:
A semiconductor integrated circuit device, and method of manufacturing the same, having a conventional-type lead frame with the die paddle removed. In particular, the die paddle is replaced with a section of tape that is supported by the ends of the lead fingers. The semiconductor die is attached to the tape so that it may be wire bonded to the lead fingers. The tape contains at least one slot to allow for expansion and/or contraction of the tape due to various temperatures experienced during the manufacturing process so that the tape does not wrinkle or warp to alter the position of the die.
摘要:
A semiconductor integrated circuit device, and method of manufacturing the same, having a conventional-type lead frame with the die paddle removed. In particular, the die paddle is replaced with a section of tape that is supported by the ends of the lead fingers. The semiconductor die is attached to the tape so that it may be wire bonded to the lead fingers. The tape contains at least one slot to allow for expansion and/or contraction of the tape due to various temperatures experienced during the manufacturing process so that the tape does not wrinkle or warp to alter the position of the die.
摘要:
An LOC die assembly including a die dielectrically adhered to the under of lead frame. The adhesive is applied over a minimum cross-sectional area and number of attachment points to maximize flexure of leads extending over the active surface of the die. In this manner, flexure of the leads to accommodate filler particles lodged between the leads and the active surface of the die during transfer molding of a plastic encapsulant is maximized, and the point stresses on the active surface caused by the filler particles are reduced by the lead flexure.
摘要:
A semiconductor integrated circuit device, and method of manufacturing the same, having a conventional-type lead frame with the die paddle removed. In particular, the die paddle is replaced with a section of tape that is supported by the ends of the lead fingers. The semiconductor die is attached to the tape so that it may be wire bonded to the lead fingers. The tape contains at least one slot to allow for expansion and/or contraction of the tape due to various temperatures experienced during the manufacturing process so that the tape does not wrinkle or warp to alter the position of the die.
摘要:
A semiconductor integrated circuit device, and method of manufacturing the same, having a conventional-type lead frame with the die paddle removed. In particular, the die paddle is replaced with a section of tape that is supported by the ends of the lead fingers. The semiconductor die is attached to the tape so that it may be wire bonded to the lead fingers. The tape contains at least one slot to allow for expansion and/or contraction of the tape due to various temperatures experienced during the manufacturing process so that the tape does not wrinkle or warp to alter the position of the die.
摘要:
A component module holder is adapted to hold a plurality of integrated circuit devices in alignment with one another in a way that enables the devices to be directly plugged to a printed circuit board. In this condition, the holder is secured to said printed circuit board with the contacts on said integrated circuit devices making contacts with appropriate contacts on the printed circuit board. This direct contact between the packaged integrated circuit device leads and a board may reduce the die bond pad to board pad stub length, improving speed. This arrangement may also allow the integrated circuit devices to be replaced and upgraded as a whole as needed. The holder may be utilized, for example, to upgrade system integrated circuit devices in computer systems by providing a plurality of connected, integrated circuit dynamic random access memory elements directly pluggable onto a computer system motherboard.
摘要:
An LOC die assembly including a die dielectrically adhered to the underside of a lead frame. The adhesive is applied over a minimum cross-sectional area and number of attachment points to maximize flexure of leads extending over the active surface of the die. In this manner, flexure of the leads to accommodate filler particles lodged between the leads and the active surface of the die during transfer molding of a plastic encapsulant is maximized, and the point stresses on the active surface caused by the filler particles are reduced by the lead flexure.
摘要:
An LOC die assembly including a die dielectrically adhered to the underside of a lead frame. The adhesive is applied over a minimum cross-sectional area and number of attachment points to maximize flexure of leads extending over the active surface of the die. In this manner, flexure of the leads to accommodate filler particles lodged between the leads and the active surface of the die during transfer molding of a plastic encapsulant is maximized, and the point stresses on the active surface caused by the filler particles are reduced by the lead flexure.
摘要:
Electronic device packages comprise transparent substrates covering an active surface of an optically interactive electronic device. In some embodiments, the optically interactive electronic device is bonded to conductive traces formed directly on the transparent substrate. In other embodiments, a secondary substrate comprising a plurality of conductive traces is disposed between the transparent substrate and the optically interactive electronic device.
摘要:
A 256 Meg dynamic random access memory is comprised of a plurality of cells organized into individual arrays, with the arrays being organized into 32 Meg array blocks, which are organized into 64 Meg quadrants. Sense amplifiers are positioned between adjacent rows in the individual arrays while row decoders are positioned between adjacent columns in the individual arrays. In certain of the gap cells, multiplexers are provided to transfer signals from I/O lines to datalines. A data path is provided which, in addition to the foregoing, includes array I/O blocks, responsive to the datalines from each quadrant to output data to a data read mux, data buffers, and data driver pads. The write data path includes a data in buffer and data write muxes for providing data to the array I/O blocks. A power bus is provided which minimizes routing of externally supplied voltages, completely rings each of the array blocks, and provides gridded power distribution within each of the array blocks. A plurality of voltage supplies provide the voltages needed in the array and in the peripheral circuits. The power supplies are organized to match their power output to the power demand and to maintain a desired ratio of power production capability and decoupling capacitance. A powerup sequence circuit is provided to control the powerup of the chip. Redundant rows and columns are provided as is the circuitry necessary to logically replace defective rows and columns with operational rows and columns. Circuitry is also provided on chip to support various types of test modes.