Abstract: An IC assembly including an exposed pad integrated circuit (“IC”) package having a thermal pad with a top surface and a bottom surface and with at least one peripheral surface portion extending transversely of and continuous with the bottom surface. The bottom surface and the at least one peripheral surface are exposed through a layer of mold compound. Also, methods of making an exposed pad integrated circuit (“IC”) package assembly. One method includes optically inspecting a solder bond bonding a thermal pad of an exposed pad IC package to a printed circuit board. Another method includes wave soldering an exposed pad of an IC package to a printed circuit board.

Abstract: An IC assembly including an exposed pad integrated circuit (“IC”) package having a thermal pad with a top surface and a bottom surface and with at least one peripheral surface portion extending transversely of and continuous with the bottom surface. The bottom surface and the at least one peripheral surface are exposed through a layer of mold compound. Also, methods of making an exposed pad integrated circuit (“IC”) package assembly. One method includes optically inspecting a solder bond bonding a thermal pad of an exposed pad IC package to a printed circuit board. Another method includes wave soldering an exposed pad of an IC package to a printed circuit board.

Abstract: An IC assembly including an exposed pad integrated circuit (“IC”) package having a thermal pad with a top surface and a bottom surface and with at least one peripheral surface portion extending transversely of and continuous with the bottom surface. The bottom surface and the at least one peripheral surface are exposed through a layer of mold compound. Also, methods of making an exposed pad integrated circuit (“IC”) package assembly. One method includes optically inspecting a solder bond bonding a thermal pad of an exposed pad IC package to a printed circuit board. Another method includes wave soldering an exposed pad of an IC package to a printed circuit board.

Abstract: An IC assembly including an exposed pad integrated circuit (“IC”) package having a thermal pad with a top surface and a bottom surface and with at least one peripheral surface portion extending transversely of and continuous with the bottom surface. The bottom surface and the at least one peripheral surface are exposed through a layer of mold compound. Also, methods of making an exposed pad integrated circuit (“IC”) package assembly. One method includes optically inspecting a solder bond bonding a thermal pad of an exposed pad IC package to a printed circuit board. Another method includes wave soldering an exposed pad of an IC package to a printed circuit board.

Abstract: A lead frame sheet of flat no-lead lead frames having a semiconductor die on a die pad, terminals, and plastic encapsulation except on a back side of the sheet to provide an exposed thermal die pad, exposed side walls, and exposed back sides of the terminals. A solder wetable metal or metal alloy plating layer is on the back side and on the exposed the walls of the terminals. The exposed thermal pad and the back side of the terminals each include a contact region which lacks the plating layer.

Abstract: A semiconductor package includes a semiconductor die and a ceramic package body covering the semiconductor die. The ceramic package body includes a plurality of contact pads. Each of a first plurality of leads includes a top portion and a bottom portion. The top portion of each of the first plurality of leads is electrically connected to a contact pad of the plurality of contact pads. Each of a second plurality of leads includes a top portion and a bottom portion and an interconnection portion between the top portion and the bottom portion. The top portion of each of the second plurality of leads includes separate finger portions that are electrically connected to at least two of the plurality of contact pads.

Abstract: A lead frame sheet of flat no-lead lead frames having a semiconductor die on a die pad, terminals, and plastic encapsulation except on a back side of the sheet to provide an exposed thermal die pad, exposed side walls, and exposed back sides of the terminals. A solder wetable metal or metal alloy plating layer is on the back side and on the exposed the walls of the terminals. The exposed thermal pad and the back side of the terminals each include a contact region which lacks the plating layer.

Abstract: A lead frame sheet of flat no-lead lead frames having a semiconductor die on a die pad, terminals, and plastic encapsulation except on a back side of the sheet to provide an exposed thermal die pad, exposed side walls, and exposed back sides of the terminals. A solder wetable metal or metal alloy plating layer is on the back side and on the exposed the walls of the terminals. The exposed thermal pad and the back side of the terminals each include a contact region which lacks the plating layer.

Abstract: A semiconductor package includes a semiconductor die and a ceramic package body covering the semiconductor die. The ceramic package body includes a plurality of contact pads. Each of a first plurality of leads includes a top portion and a bottom portion. The top portion of each of the first plurality of leads is electrically connected to a contact pad of the plurality of contact pads. Each of a second plurality of leads includes a top portion and a bottom portion and an interconnection portion between the top portion and the bottom portion. The top portion of each of the second plurality of leads includes separate finger portions that are electrically connected to at least two of the plurality of contact pads.

Abstract: A semiconductor device comprising a stack of semiconductor chips. The semiconductor chips have an electrically active side and an opposite electrically inactive side. The active sides bordered by an edge having first lengths and the inactive sides bordered by a parallel edge having a second lengths smaller than the first lengths. A substrate has an assembly pad bordered by a linear edge having a third length equal to or smaller than the first lengths. The inactive chip side attached to the pad so that the edge of the first lengths are parallel to the edge of the third length. The active side of the attached chip forms an overhang over the pad, when the third length is smaller than the first lengths.

Abstract: A method of assembling a semi-hermetic semiconductor package includes bonding a semiconductor die having bond pads to a top side of a base region of a package substrate having vertical side walls that are hollow which define an inner open volume (gap) having an adhesive or thermoplastic material therein. There are a plurality of metal terminals providing top terminal contacts on the top side of the base region and bottom terminal contacts on a bottom side or below the base region. The bond pads are coupled to the top terminal contacts. A lid is placed which provides a top for the semiconductor package, where the lid extends to vertically oriented end protrusions so that the protrusions are positioned within the adhesive or thermoplastic material to secure the protrusions within the adhesive or thermoplastic material to provide a seal for the semiconductor package.

Abstract: A lead frame sheet of flat no-lead lead frames having a semiconductor die on a die pad, terminals, and plastic encapsulation except on a back side of the sheet to provide an exposed thermal die pad, exposed side walls, and exposed back sides of the terminals. A solder wetable metal or metal alloy plating layer is on the back side and on the exposed the walls of the terminals. The exposed thermal pad and the hack side of the terminals each include a contact region which lacks the plating layer.

Abstract: A method for fabricating a semiconductor proximity sensor includes providing a flat leadframe with a first and a second surface. The second surface is solderable. The leadframe includes a first and a second pad, a plurality of leads, and fingers framing the first pad. The fingers are spaced from the first pad by a gap which is filled with a clear molding compound. A light-emitting diode (LED) chip is assembled on the first pad and encapsulated by a first volume of the clear compound. The first volume outlined as a first lens. A sensor chip is assembled on the second pad and encapsulated by a second volume of the clear compound. The second volume outlined as a second lens. Opaque molding compound fills the space between the first and second volumes of clear compound and forms walls rising from the frame of fingers to create an enclosed cavity for the LED. The pads, leads, and fingers connected to a board using a layer of solder for attaching the proximity sensor.

Abstract: A lead frame sheet of flat no-lead lead frames having a semiconductor die on a die pad, terminals, and plastic encapsulation except on a back side of the sheet to provide an exposed thermal die pad, exposed side walls, and exposed back sides of the terminals. A solder wetable metal or metal alloy plating layer is on the back side and on the exposed the walls of the terminals. The exposed thermal pad and the back side of the terminals each include a contact region which lacks the plating layer.

Abstract: A method of assembling a semi-hermetic semiconductor package includes bonding a semiconductor die having bond pads to a top side of a base region of a package substrate having vertical side walls that are hollow which define an inner open volume (gap) having an adhesive or thermoplastic material therein. There are a plurality of metal terminals providing top terminal contacts on the top side of the base region and bottom terminal contacts on a bottom side or below the base region. The bond pads are coupled to the top terminal contacts. A lid is placed which provides a top for the semiconductor package, where the lid extends to vertically oriented end protrusions so that the protrusions are positioned within the adhesive or thermoplastic material to secure the protrusions within the adhesive or thermoplastic material to provide a seal for the semiconductor package.

Abstract: A lead frame sheet of flat no-lead lead frames having a semiconductor die on a die pad, terminals, and plastic encapsulation except on a back side of the sheet to provide an exposed thermal die pad, exposed side walls, and exposed back sides of the terminals. A solder wetable metal or metal alloy plating layer is on the back side and on the exposed the walls of the terminals. The exposed thermal pad and the back side of the terminals each include a contact region which lacks the plating layer.

Abstract: A method for fabricating a semiconductor proximity sensor includes providing a flat leadframe with a first and a second surface. The second surface is solderable. The leadframe includes a first and a second pad, a plurality of leads, and fingers framing the first pad. The fingers are spaced from the first pad by a gap which is filled with a clear molding compound. A light-emitting diode (LED) chip is assembled on the first pad and encapsulated by a first volume of the clear compound. The first volume outlined as a first lens. A sensor chip is assembled on the second pad and encapsulated by a second volume of the clear compound. The second volume outlined as a second lens. Opaque molding compound fills the space between the first and second volumes of clear compound and forms walls rising from the frame of fingers to create an enclosed cavity for the LED. The pads, leads, and fingers connected to a board using a layer of solder for attaching the proximity sensor.

Abstract: A method for fabricating a semiconductor proximity sensor includes providing a flat leadframe with a first and a second surface. The second surface is solderable. The leadframe includes a first and a second pad, a plurality of leads, and fingers framing the first pad. The fingers are spaced from the first pad by a gap which is filled with a clear molding compound. A light-emitting diode (LED) chip is assembled on the first pad and encapsulated by a first volume of the clear compound. The first volume outlined as a first lens. A sensor chip is assembled on the second pad and encapsulated by a second volume of the clear compound. The second volume outlined as a second lens. Opaque molding compound fills the space between the first and second volumes of clear compound and forms walls rising from the frame of fingers to create an enclosed cavity for the LED. The pads, leads, and fingers connected to a board using a layer of solder for attaching the proximity sensor.

Abstract: An IC assembly including an exposed pad integrated circuit (“IC”) package having a thermal pad with a top surface and a bottom surface and with at least one peripheral surface portion extending transversely of and continuous with the bottom surface. The bottom surface and the at least one peripheral surface are exposed through a layer of mold compound. Also, methods of making an exposed pad integrated circuit (“IC”) package assembly. One method includes optically inspecting a solder bond bonding a thermal pad of an exposed pad IC package to a printed circuit board. Another method includes wave soldering an exposed pad of an IC package to a printed circuit board.

Abstract: A semiconductor device comprising a stack of semiconductor chips. The semiconductor chips have an electrically active side and an opposite electrically inactive side. The active sides bordered by an edge having first lengths and the inactive sides bordered by a parallel edge having a second lengths smaller than the first lengths. A substrate has an assembly pad bordered by a linear edge having a third length equal to or smaller than the first lengths. The inactive chip side attached to the pad so that the edge of the first lengths are parallel to the edge of the third length. The active side of the attached chip forms an overhang over the pad, when the third length is smaller than the first lengths.