Stanton Weaver - Academia.edu (original) (raw)

Papers by Stanton Weaver

Research paper thumbnail of Effects of Localized Heat Generations Due to the Color Conversion in Phosphor Particles and Layers of High Brightness Light Emitting Diodes

2003 International Electronic Packaging Technical Conference and Exhibition, Volume 1, 2003

The efficiency and reliability of the solid-state lighting devices strongly depend on successful ... more The efficiency and reliability of the solid-state lighting devices strongly depend on successful thermal management. Light emitting diodes, LEDs, a strong candidate for the next generation general illumination applications are of interest. Typical white LEDs start with either blue ...

Research paper thumbnail of Device for thermal transfer and power generation

A system is provided. The system includes a device that includes top and bottom thermally conduct... more A system is provided. The system includes a device that includes top and bottom thermally conductive substrates positioned opposite to one another, wherein a top surface of the bottom thermally conductive substrate is substantially atomically flat and a thermal blocking layer disposed between the top and bottom thermally conductive substrates. The device also includes top and bottom electrodes separated from

Research paper thumbnail of HIGH PERFORMANCE HEAT TRANSFER DEVICE, METHODS OF MANUFACTURE THEREOF AND ARTICLES COMPRISING THE SAME

Research paper thumbnail of <title>Thermal management of LEDs: package to system</title>

Third International Conference on Solid State Lighting, 2004

Light emitting diodes, LEDs, historically have been used for indicators and produced low amounts ... more Light emitting diodes, LEDs, historically have been used for indicators and produced low amounts of heat. The introduction of high brightness LEDs with white light and monochromatic colors have led to a movement towards general illumination. The increased electrical currents used to drive the LEDs have focused more attention on the thermal paths in the developments of LED power packaging. The luminous efficiency of LEDs is soon expected to reach over 80 lumens/W, this is approximately 6 times the efficiency of a conventional incandescent tungsten bulb. Thermal management for the solid-state lighting applications is a key design parameter for both package and system level. Package and system level thermal management is discussed in separate sections. Effect of chip packages on junction to board thermal resistance was compared for both SiC and Sapphire chips. The higher thermal conductivity of the SiC chip provided about 2 times better thermal performance than the latter, while the under-filled Sapphire chip package can only catch the SiC chip performance. Later, system level thermal management was studied based on established numerical models for a conceptual solid-state lighting system. A conceptual LED illumination system was chosen and CFD models were created to determine the availability and limitations of passive air-cooling.

Research paper thumbnail of <title>Chip-scale thermal management of high-brightness LED packages</title>

Fourth International Conference on Solid State Lighting, 2004

The efficiency and reliability of the solid-state lighting devices strongly depend on successful ... more The efficiency and reliability of the solid-state lighting devices strongly depend on successful thermal management.

Research paper thumbnail of Impingement Air Cooling With Synthetic Jets Over Small and Large Heated Surfaces

Advances in Electronic Packaging, Parts A, B, and C, 2005

ABSTRACT

Research paper thumbnail of Method of making low work function component

ABSTRACT A method for fabricating a component is disclosed. The method includes: providing a memb... more ABSTRACT A method for fabricating a component is disclosed. The method includes: providing a member having an effective work function of an initial value, disposing a sacrificial layer on a surface of the member, disposing a first agent within the member to obtain a predetermined concentration of the agent at said surface of the member, annealing the member, and removing the sacrificial layer to expose said surface of the member, wherein said surface has a post-process effective work function that is different from the initial value.

Research paper thumbnail of Solid State Thermotunneling Systems for Power Generation

Nanoscience and Nanotechnology Letters, 2010

ABSTRACT

Research paper thumbnail of <title>Nano-thermotunneling systems for efficient power generation</title>

Micro- and Nanotechnology Sensors, Systems, and Applications II, 2010

ABSTRACT

Research paper thumbnail of Developing a standard measurement and calculation procedure for high brightness LED junction temperature

Fourteenth Intersociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems (ITherm), 2014

Research paper thumbnail of Thermal Needs and Challenges for the Solid State Lighting Devices: Materials to Packages

Electronic and Photonic Packaging, Electrical Systems Design and Photonics, and Nanotechnology, 2005

ABSTRACT

Research paper thumbnail of Thermal Conductivity Measurements of Si-SiO

Heat Transfer: Volume 2, 2008

ABSTRACT

Research paper thumbnail of Novel Fluorescent Visualization Method to Characterize Transport Properties in Micro/Nano Heat Pipe Wick Structures

ASME 2009 InterPACK Conference, Volume 2, 2009

Heat pipes have been gaining a lot of popularity in electronics cooling applications due to their... more Heat pipes have been gaining a lot of popularity in electronics cooling applications due to their ease of operation, reliability, and high effective thermal conductivity. An important component of a heat pipe is the wick structure, which transports the condensate from condenser to evaporator. The design of wick structures is complicated by competing requirements to create high capillary driving forces and maintain high permeability. While generating large pore sizes will help achieve high permeability, it will significantly reduce the wick's capillary performance. This study presents a novel experimental method to simultaneously measure capillary and permeability characteristics of the wick structures using fluorescent visualization. This technique will be used to study the effects of pore size and gravitational force on the flow-related properties of the wick structures. Initial results are presented on wick samples visually characterized from zero to nine g acceleration on a centrifuge. These results will provide a tool to understand the physics involved in transport through porous structures and help in the design of high performance heat pipes.

Research paper thumbnail of Immersion Cooling of Light Emitting Diodes

2010 12th IEEE Intersociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, 2010

ABSTRACT

Research paper thumbnail of Development and Experimental Validation of a Micro/Nano Thermal Ground Plane

ASME/JSME 2011 8th Thermal Engineering Joint Conference, 2011

Heat pipes are commonly used in electronics cooling applications to spread heat from a concentrat... more Heat pipes are commonly used in electronics cooling applications to spread heat from a concentrated heat source to a larger heat sink. Heat pipes work on the principles of two-phase heat transfer by evaporation and condensation of a working fluid. The amount of ...

Research paper thumbnail of Micro Fluidic Jets for Thermal Management of Electronics

Research paper thumbnail of Thermotunneling Systems for Advanced Efficient Cooling

ASME 2009 InterPACK Conference, Volume 1, 2009

ABSTRACT

Research paper thumbnail of Effect of chip and bonding defects on the junction temperatures of high-brightness light-emitting diodes

Optical Engineering, 2005

... [bold Stanton Weaver] received a dual AAS degree in electrical engineering technology and dig... more ... [bold Stanton Weaver] received a dual AAS degree in electrical engineering technology and digital communications in 1983 from SUNY Morrisville. ... He was a key member of the team responsible for development of state-of-the-art direct laser write and drill machines. ...

Research paper thumbnail of Chip to System Levels Thermal Needs and Alternative Thermal Technologies for High Brightness LEDS

Journal of Electronic Packaging, 2007

ABSTRACT

Research paper thumbnail of Meso Scale Pulsating Jets for Electronics Cooling

Journal of Electronic Packaging, 2005

ABSTRACT

Research paper thumbnail of Effects of Localized Heat Generations Due to the Color Conversion in Phosphor Particles and Layers of High Brightness Light Emitting Diodes

2003 International Electronic Packaging Technical Conference and Exhibition, Volume 1, 2003

The efficiency and reliability of the solid-state lighting devices strongly depend on successful ... more The efficiency and reliability of the solid-state lighting devices strongly depend on successful thermal management. Light emitting diodes, LEDs, a strong candidate for the next generation general illumination applications are of interest. Typical white LEDs start with either blue ...

Research paper thumbnail of Device for thermal transfer and power generation

A system is provided. The system includes a device that includes top and bottom thermally conduct... more A system is provided. The system includes a device that includes top and bottom thermally conductive substrates positioned opposite to one another, wherein a top surface of the bottom thermally conductive substrate is substantially atomically flat and a thermal blocking layer disposed between the top and bottom thermally conductive substrates. The device also includes top and bottom electrodes separated from

Research paper thumbnail of HIGH PERFORMANCE HEAT TRANSFER DEVICE, METHODS OF MANUFACTURE THEREOF AND ARTICLES COMPRISING THE SAME

Research paper thumbnail of <title>Thermal management of LEDs: package to system</title>

Third International Conference on Solid State Lighting, 2004

Light emitting diodes, LEDs, historically have been used for indicators and produced low amounts ... more Light emitting diodes, LEDs, historically have been used for indicators and produced low amounts of heat. The introduction of high brightness LEDs with white light and monochromatic colors have led to a movement towards general illumination. The increased electrical currents used to drive the LEDs have focused more attention on the thermal paths in the developments of LED power packaging. The luminous efficiency of LEDs is soon expected to reach over 80 lumens/W, this is approximately 6 times the efficiency of a conventional incandescent tungsten bulb. Thermal management for the solid-state lighting applications is a key design parameter for both package and system level. Package and system level thermal management is discussed in separate sections. Effect of chip packages on junction to board thermal resistance was compared for both SiC and Sapphire chips. The higher thermal conductivity of the SiC chip provided about 2 times better thermal performance than the latter, while the under-filled Sapphire chip package can only catch the SiC chip performance. Later, system level thermal management was studied based on established numerical models for a conceptual solid-state lighting system. A conceptual LED illumination system was chosen and CFD models were created to determine the availability and limitations of passive air-cooling.

Research paper thumbnail of <title>Chip-scale thermal management of high-brightness LED packages</title>

Fourth International Conference on Solid State Lighting, 2004

The efficiency and reliability of the solid-state lighting devices strongly depend on successful ... more The efficiency and reliability of the solid-state lighting devices strongly depend on successful thermal management.

Research paper thumbnail of Impingement Air Cooling With Synthetic Jets Over Small and Large Heated Surfaces

Advances in Electronic Packaging, Parts A, B, and C, 2005

ABSTRACT

Research paper thumbnail of Method of making low work function component

ABSTRACT A method for fabricating a component is disclosed. The method includes: providing a memb... more ABSTRACT A method for fabricating a component is disclosed. The method includes: providing a member having an effective work function of an initial value, disposing a sacrificial layer on a surface of the member, disposing a first agent within the member to obtain a predetermined concentration of the agent at said surface of the member, annealing the member, and removing the sacrificial layer to expose said surface of the member, wherein said surface has a post-process effective work function that is different from the initial value.

Research paper thumbnail of Solid State Thermotunneling Systems for Power Generation

Nanoscience and Nanotechnology Letters, 2010

ABSTRACT

Research paper thumbnail of <title>Nano-thermotunneling systems for efficient power generation</title>

Micro- and Nanotechnology Sensors, Systems, and Applications II, 2010

ABSTRACT

Research paper thumbnail of Developing a standard measurement and calculation procedure for high brightness LED junction temperature

Fourteenth Intersociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems (ITherm), 2014

Research paper thumbnail of Thermal Needs and Challenges for the Solid State Lighting Devices: Materials to Packages

Electronic and Photonic Packaging, Electrical Systems Design and Photonics, and Nanotechnology, 2005

ABSTRACT

Research paper thumbnail of Thermal Conductivity Measurements of Si-SiO

Heat Transfer: Volume 2, 2008

ABSTRACT

Research paper thumbnail of Novel Fluorescent Visualization Method to Characterize Transport Properties in Micro/Nano Heat Pipe Wick Structures

ASME 2009 InterPACK Conference, Volume 2, 2009

Heat pipes have been gaining a lot of popularity in electronics cooling applications due to their... more Heat pipes have been gaining a lot of popularity in electronics cooling applications due to their ease of operation, reliability, and high effective thermal conductivity. An important component of a heat pipe is the wick structure, which transports the condensate from condenser to evaporator. The design of wick structures is complicated by competing requirements to create high capillary driving forces and maintain high permeability. While generating large pore sizes will help achieve high permeability, it will significantly reduce the wick's capillary performance. This study presents a novel experimental method to simultaneously measure capillary and permeability characteristics of the wick structures using fluorescent visualization. This technique will be used to study the effects of pore size and gravitational force on the flow-related properties of the wick structures. Initial results are presented on wick samples visually characterized from zero to nine g acceleration on a centrifuge. These results will provide a tool to understand the physics involved in transport through porous structures and help in the design of high performance heat pipes.

Research paper thumbnail of Immersion Cooling of Light Emitting Diodes

2010 12th IEEE Intersociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, 2010

ABSTRACT

Research paper thumbnail of Development and Experimental Validation of a Micro/Nano Thermal Ground Plane

ASME/JSME 2011 8th Thermal Engineering Joint Conference, 2011

Heat pipes are commonly used in electronics cooling applications to spread heat from a concentrat... more Heat pipes are commonly used in electronics cooling applications to spread heat from a concentrated heat source to a larger heat sink. Heat pipes work on the principles of two-phase heat transfer by evaporation and condensation of a working fluid. The amount of ...

Research paper thumbnail of Micro Fluidic Jets for Thermal Management of Electronics

Research paper thumbnail of Thermotunneling Systems for Advanced Efficient Cooling

ASME 2009 InterPACK Conference, Volume 1, 2009

ABSTRACT

Research paper thumbnail of Effect of chip and bonding defects on the junction temperatures of high-brightness light-emitting diodes

Optical Engineering, 2005

... [bold Stanton Weaver] received a dual AAS degree in electrical engineering technology and dig... more ... [bold Stanton Weaver] received a dual AAS degree in electrical engineering technology and digital communications in 1983 from SUNY Morrisville. ... He was a key member of the team responsible for development of state-of-the-art direct laser write and drill machines. ...

Research paper thumbnail of Chip to System Levels Thermal Needs and Alternative Thermal Technologies for High Brightness LEDS

Journal of Electronic Packaging, 2007

ABSTRACT

Research paper thumbnail of Meso Scale Pulsating Jets for Electronics Cooling

Journal of Electronic Packaging, 2005

ABSTRACT