Abstract:
The chip stack of semiconductor chips with enhanced cooling apparatus includes a first chip with circuitry on a first side and a second chip electrically and mechanically coupled to the first chip by a grid of connectors. The apparatus further includes a thermal interface material pad placed between the first chip and the second chip, wherein the thermal interface material pad includes nanofibers aligned parallel to mating surfaces of the first chip and the second chip and nanofibers aligned perpendicular to mating surfaces of the first chip and the second chip
Abstract:
In various embodiments of the present invention a circuit apparatus having a rounded trace, a method to manufacture the circuit apparatus, and a design structure used in the design, testing, or manufacturing of the circuit apparatus are described. An artwork layer having an adaptable-mask section allows a graded amount of light to pass into an underlying photoresist layer. Subsequent to developing the photoresist layer, the graded amount of light creates a rounded geometric void used as a mold or sidewall for the creation of at least a portion of a rounded trace. The photoresist layer is removed resulting in a circuit apparatus having a rounded trace.
Abstract:
A method, system and apparatus for preferential cooling of an electrical circuit board via a cradle having a cooling shell. An enhanced connector cradle enables the secure and precise placement of a connector on a circuit board by using a cooling component which selectively enables only the connector leads to reach reflow temperature levels. The cradle aligns and securely connects the circuit board to the connector via a comb structure of the cradle to form a single connector unit. Heat is applied to the single connector unit to initiate bond formation. The cradle selectively minimizes the heat to the circuit board and other board components by enabling the circulation of de-ionized water through the cooling component during the heating process. As a result, the cradle restricts reflow temperature levels to the connector leads. The cradle mechanism is removed from the board after the connector is securely bonded to the board.
Abstract:
A first artwork layer having a first adaptable-mask section allows a graded amount of light to pass into an underlying first photoresist layer. Subsequent to developing the first photoresist layer, the graded amount of light creates a rounded geometric void used as a mold or sidewall for the creation of at least a lower portion of a rounded trace. A dielectric layer is laminated upon the lower portion and a second artwork layer having an second adaptable-mask section allows a graded amount of light to pass into a second photoresist layer. Subsequent to developing the second photoresist layer, the graded amount of light creates a rounded geometric void used as a mold or sidewall for the creation of at least an upper portion of a rounded trace. The photoresist and dielectric layers are removed resulting in a circuit apparatus having a rounded differential pair trace.
Abstract:
The chip stack of semiconductor chips with enhanced cooling apparatus includes a first chip with circuitry on a first side and a second chip electrically and mechanically coupled to the first chip by a grid of connectors. The apparatus further includes a thermal interface material pad placed between the first chip and the second chip, wherein the thermal interface material pad includes nanofibers aligned parallel to mating surfaces of the first chip and the second chip. The method includes creating a first chip with circuitry on a first side and creating a second chip electrically and mechanically coupled to the first chip by a grid of connectors. The method further includes placing a thermal interface material pad between the first chip and the second chip, wherein the thermal interface material pad includes nanofibers aligned parallel to mating surfaces of the first chip and the second chip.
Abstract:
A first artwork layer having a first adaptable-mask section allows a graded amount of light to pass into an underlying first photoresist layer. Subsequent to developing the first photoresist layer, the graded amount of light creates a rounded geometric void used as a mold or sidewall for the creation of at least a lower portion of a rounded trace. A dielectric layer is laminated upon the lower portion and a second artwork layer having an second adaptable-mask section allows a graded amount of light to pass into a second photoresist layer. Subsequent to developing the second photoresist layer, the graded amount of light creates a rounded geometric void used as a mold or sidewall for the creation of at least an upper portion of a rounded trace. The photoresist and dielectric layers are removed resulting in a circuit apparatus having a rounded differential pair trace.
Abstract:
The exemplary embodiments of the present invention provide a method and system for aligning graphite nanofibers in a thermal interface material to enhance the thermal interface material performance. The method includes preparing the graphite nanofibers in a herringbone configuration, and dispersing the graphite nanofibers in the herringbone configuration into the thermal interface material. The method further includes applying a magnetic field of sufficient intensity to align the graphite nanofibers in the thermal interface material. The system includes the graphite nanofibers configured in a herringbone configuration and a means for dispersing the graphite nanofibers in the herringbone configuration into the thermal interface material. The system further includes a means for applying a magnetic field of sufficient intensity to align the graphite nanofibers in the thermal interface material.
Abstract:
The chip stack of semiconductor chips with enhanced cooling apparatus includes a first chip with circuitry on a first side and a second chip electrically and mechanically coupled to the first chip by a grid of connectors. The apparatus further includes a thermal interface material pad placed between the first chip and the second chip, wherein the thermal interface material pad includes nanofibers aligned parallel to mating surfaces of the first chip and the second chip. The method includes creating a first chip with circuitry on a first side and creating a second chip electrically and mechanically coupled to the first chip by a grid of connectors. The method further includes placing a thermal interface material pad between the first chip and the second chip, wherein the thermal interface material pad includes nanofibers aligned parallel to mating surfaces of the first chip and the second chip.
Abstract:
Two test coupons are utilized in an apparatus, method and design process/structure for determining the moisture content in an electronic circuit board (e.g., a printed circuit board (PCB) or panel). The first coupon has a laminate stack-up with voltage planes separated from each other by dielectric material. These voltage planes include etched clearances with neither plated through holes (PTHs) nor drilled holes extending therethrough. The second coupon is substantially identical to the first coupon except that each of the voltage planes of the first coupon includes PTHs extending through etched clearances corresponding to the etched clearances of the first coupon. In one embodiment, an alarm indicating unacceptably high moisture content is generated if a delta capacitance calculated as a difference between capacitance measurements acquired from the respective coupons is greater than a threshold. Preferably, the alarm notifies a user that at least one aqueous process related to PTH formation is implicated.
Abstract:
In various embodiments of the present invention a circuit apparatus having a rounded trace, a method to manufacture the circuit apparatus, and a design structure used in the design, testing, or manufacturing of the circuit apparatus are described. An artwork layer having an adaptable-mask section allows a graded amount of light to pass into an underlying photoresist layer. Subsequent to developing the photoresist layer, the graded amount of light creates a rounded geometric void used as a mold or sidewall for the creation of at least a portion of a rounded trace. The photoresist layer is removed resulting in a circuit apparatus having a rounded trace.