摘要:
A multiple-chip package has top and bottom pre-molded leadframes formed prior to the flip-chip attachment of semiconductor die to the leadframes. After die attachment, underfill is used to encase all but one surface of the die, and the top and bottom leadframes are joined together by solder bump balls with the exposed surfaces of the semiconductor dice proximate to each other.
摘要:
Disclosed are semiconductor die packages constructed from modules of embedded semiconductor dice and electrical components. In one embodiment, a semiconductor die package comprises a first module and a second module attached to the first module. One or more semiconductor dice are embedded in the first module, and one or more electrical components, such as surface-mounted components, are embedded in the second module. The first module may be formed by a lamination process, and the second module may be formed by a lamination process or a molding process. Patterned metal layers and vias provide electrical interconnections to the package and among the die and components of the package. The second module may be attached to the first module by coupling interconnect lands of separately manufactured modules to one another, or may be directly attached by lamination or molding.
摘要:
A multiple-chip package has top and bottom pre-molded leadframes formed prior to the flip-chip attachment of semiconductor die to the leadframes. After die attachment, underfill is used to encase all but one surface of the die, and the top and bottom leadframes are joined together by solder bump balls with the exposed surfaces of the semiconductor dice proximate to each other.
摘要:
Disclosed in this specification is a buck converter package with stacked dice and a process for forming a buck converter. The package includes a die attach pad with a low side die mounted on one surface and a high side die mounted on the opposing surface. The die attach pad is conductive, such that the drain of the low side die is connected to the source of the high side die through the pad. A controller die controls the gates of the high and low side dies. A plurality of leads extends outside of the package to permit electrical connections to the inside of the package. The high side drain is exposed to one of the surfaces of the package.
摘要:
Optocoupler packages and methods of making the same. An exemplary package comprises a substrate having a first surface, a second surface opposite the first surface, and a body of electrically insulating material disposed between the first and second surfaces; a first optoelectronic device embedded in the body of electrically insulating material of the substrate and disposed between the substrate's first and second surfaces, the first optoelectronic device having a first conductive region and a second conductive region; a second optoelectronic device embedded in the body of electrically insulating material of the substrate and disposed between the substrate's first and second surfaces and optically coupled to the first optoelectronic device, the second optoelectronic device having a first conductive region and a second conductive region; and a plurality of electrical traces disposed on one or both surfaces of the substrate and electrically coupled to the conductive regions of the optoelectronic devices.
摘要:
An encapsulated buck converter module includes a low side transistor and a control integrated circuit bonded to a first section on a first side of a leadframe, a first clip between a source of the low side transistor and a second section, a source contact of a high side transistor attached to the first section on a second side of the leadframe with a gate contact of the high side transistor attached to a third section, a conductive member attached to the first and second sections on the second side of the leadframe wherein the first side of the conductive member attached to the second conductive member forms a conductive path with a portion of a second side of the conductive member while any portion of the first side of the conductive member attached to the first component attachment section is insulated from the first side of the conductive member, a first plate of a capacitor attached to a drain contact of the high side transistor and a second plate of the capacitor attached to the second side of the conductive member, and means for forming an external connection to the drain contact of the high side transistor.
摘要:
A semiconductor die package. The semiconductor die package includes a leadframe structure comprising a first die attach pad, and a second die attach pad laterally spaced from the first die attach pad, a first side and a second side opposite to the first side. The semiconductor die package further includes a first semiconductor die attached the first die attach pad at the first side of the leadframe structure, and a second semiconductor die attached to the second die attach pad at the second side of the leadframe structure. The semiconductor die package further includes a housing material covering at least a portion of the leadframe structure, the first semiconductor die, and the second semiconductor die.
摘要:
A semiconductor die package. It includes a substrate having a first surface and a second surface, a first semiconductor die having its front surface facing the first surface of the substrate, a conductive adhesive disposed between the first semiconductor die and the first surface of the substrate, and a second semiconductor die located on the first semiconductor die. The front surface of second semiconductor die faces away from the first semiconductor die, and the back surface faces toward the first semiconductor die. A plurality of conductive structures electrically couple regions at the front surface of the second semiconductor die to conductive regions at the first surface of the substrate.
摘要:
A multichip module buck converter 10 has a high side power mosfet 12, a low side power mosfet 22 and a pre-molded leadframe 40 between the two mosfets for connecting the source of mosfet 12 to the drain of mosfet 22. Clips 14, 16, 18 and 26 carry the source, gate and drain terminals of the mosfet from planes parallel but spaced apart to a common plane.
摘要:
A multichip module buck converter 10 has a high side power mosfet 12, a low side power mosfet 22 and a pre-molded leadframe 40 between the two mosfets for connecting the source of mosfet 12 to the drain of mosfet 22. Clips 14, 16, 18 and 26 carry the source, gate and drain terminals of the mosfet from planes parallel but spaced apart to a common plane.