摘要:
Processes of assembling microelectronic packages with lead frames and/or other suitable substrates are described herein. In one embodiment, a method for fabricating a semiconductor assembly includes forming an attachment area and a non-attachment area on a lead finger of a lead frame. The attachment area is more wettable to the solder ball than the non-attachment area during reflow. The method also includes contacting a solder ball carried by a semiconductor die with the attachment area of the lead finger, reflowing the solder ball while the solder ball is in contact with the attachment area of the lead finger, and controllably collapsing the solder ball to establish an electrical connection between the semiconductor die and the lead finger of the lead frame.
摘要:
Processes of assembling microelectronic packages with lead frames and/or other suitable substrates are described herein. In one embodiment, a method for fabricating a semiconductor assembly includes forming an attachment area and a non-attachment area on a lead finger of a lead frame. The attachment area is more wettable to the solder ball than the non-attachment area during reflow. The method also includes contacting a solder ball carried by a semiconductor die with the attachment area of the lead finger, reflowing the solder ball while the solder ball is in contact with the attachment area of the lead finger, and controllably collapsing the solder ball to establish an electrical connection between the semiconductor die and the lead finger of the lead frame.
摘要:
Several embodiments of microelectronic packages with enhanced heat dissipation and associated methods of manufacturing are disclosed herein. In one embodiment, a microelectronic package includes a semiconductor die having a first side and a second side opposite the first side and a lead frame proximate the semiconductor die. The lead frame has a lead finger electrically coupled to the first side of the semiconductor die. The microelectronic package also includes an encapsulant at least partially encapsulating the semiconductor die and the lead frame. The encapsulant does not cover at least a portion of the second side of the semiconductor die.
摘要:
Several embodiments of microelectronic packages with enhanced heat dissipation and associated methods of manufacturing are disclosed herein. In one embodiment, a microelectronic package includes a semiconductor die having a first side and a second side opposite the first side and a lead frame proximate the semiconductor die. The lead frame has a lead finger electrically coupled to the first side of the semiconductor die. The microelectronic package also includes an encapsulant at least partially encapsulating the semiconductor die and the lead frame. The encapsulant does not cover at least a portion of the second side of the semiconductor die.
摘要:
The present technology discloses a stacked die package. In one embodiment, a package comprises a first die, a second die, and a leadframe. The first die is electrically coupled to the bottom surface of the leadframe through contact bump/bumps. The second die is electrically coupled to the top surface of the leadframe through wirebond/wires. The second die is mounted on the top surface of the first die.
摘要:
An integrated circuit for implementing a switch-mode power converter is disclosed. The integrated circuit comprises at least a first semiconductor die having an electrically quiet surface, a second semiconductor die for controlling the operation of said first semiconductor die stacked on said first semiconductor die having said electrically quiet surface and a lead frame structure for supporting said first semiconductor die and electrically coupling said first and second semiconductor dies to external circuitry.
摘要:
A method for producing a circuit board having an integrated electronic component comprising providing a circuit board substrate having a first substrate surface and a second substrate surface, securing an integrated electronic component to the first substrate surface, and disposing a first dielectric layer on the first substrate surface and over the first integrated electronic component. The method additionally includes disposing a metallic layer on the first dielectric layer to produce an integrated electronic component assembly, producing in the integrated electronic component assembly at least one via having a metal lining in contact with the metallic layer, and disposing a second dielectric layer over the via and over the metallic layer. At least one metal-lined opening is formed in the second dielectric layer and in the first dielectric layer to expose at least part of the integrated electronic component, and to couple the metal lining of the opening to the first integrated electronic component to produce a circuit board having at least one integrated electronic component. A multi-layer printed circuit board having at least one prefabricated, integrated electronic component.
摘要:
Multilayer circuit lamination methods and circuit layer structures are disclosed which enable one to manufacture high-density multichip module boards and the like at lower cost, with higher yield, with higher signal densities, and with fewer processing steps.
摘要:
The present technology discloses a multi-die package. The package comprises a lead frame structure and three dies including a first flip chip die, a second flip chip die and a third flip chip die stacked vertically. The first flip chip die is mounted on the bottom surface of the lead frame structure through the flip chip bumps; the second flip chip is mounted on the top surface of the first flip chip die through flip chip bumps; and the third flip chip die is mounted on the top surface of the lead frame structure through flip chip bumps.