摘要:
Described is an apparatus which comprises: a die having a first side and a second side opposite to the first side; a die backside film (DBF) or die attach film (DAF) disposed over the first side of the die; and a fluorocarbon layer disposed over the DBF or DAF. Described is a method which comprises: applying a die backside film (DBF) over a first side of a die, wherein the die has a second side which metal bumps; and applying a plasma polymerization process to treat the DBF with a fluorocarbon plasma.
摘要:
Embodiments of the present disclosure are directed to die adhesive films for integrated circuit (IC) packaging, as well as methods for forming and removing die adhesive films and package assemblies and systems incorporating such die adhesive films. A die adhesive film may be transparent to a first wavelength of light and photoreactive to a second wavelength of light. In some embodiments, the die adhesive film may be applied to a back or “inactive” side of a die, and the die surface may be detectable through the die adhesive film. The die adhesive film may be cured and/or marked with laser energy having the second wavelength of light. The die adhesive film may include a thermochromic dye and/or nanoparticles configured to provide laser mark contrast. UV laser energy may be used to remove the die adhesive film in order to expose underlying features such as TSV pads.
摘要:
Techniques are disclosed for protecting a surface using a dry-removable protective coating that does not require chemical solutions to be removed. In an embodiment, a protective layer is disposed on a surface. The protective layer is composed of one layer that adheres to the surface. The surface is then processed while the protective coating is on the surface. Thereafter, the protective layer is removed from the surface by separating the protective layer away from the surface without the use of chemical solutions.
摘要:
Foundation layers and methods of forming a foundation layer are described. Die pads are formed over a die. A dielectric layer is formed over die pads and the die. The dielectric layer is then recessed to expose top portions of the die pads. A first plurality of sintered conductive vias are formed over the die pads. The first sintered conductive vias are coupled to at least one of the die pads. In addition, a photoresist layer may be formed over the dielectric layer and the top portions of the die pads. Via openings are formed in the photoresist layer. A second plurality of sintered conductive vias may then be formed over the first sintered conductive vias to form a plurality of sintered conductive lines. Each of the first and second sintered conductive vias are formed with a liquid phase sintering (LPS) solder paste.
摘要:
Foundation layers and methods of forming a foundation layer are described. Die pads are formed over a die. A dielectric layer is formed over die pads and the die. The dielectric layer is then recessed to expose top portions of the die pads. A first plurality of sintered conductive vias are formed over the die pads. The first sintered conductive vias are coupled to at least one of the die pads. In addition, a photoresist layer may be formed over the dielectric layer and the top portions of the die pads. Via openings are formed in the photoresist layer. A second plurality of sintered conductive vias may then be formed over the first sintered conductive vias to form a plurality of sintered conductive lines. Each of the first and second sintered conductive vias are formed with a liquid phase sintering (LPS) solder paste.
摘要:
Embodiments of the present disclosure are directed to die adhesive films for integrated circuit (IC) packaging, as well as methods for forming and removing die adhesive films and package assemblies and systems incorporating such die adhesive films. A die adhesive film may be transparent to a first wavelength of light and photoreactive to a second wavelength of light. In some embodiments, the die adhesive film may be applied to a back or “inactive” side of a die, and the die surface may be detectable through the die adhesive film. The die adhesive film may be cured and/or marked with laser energy having the second wavelength of light. The die adhesive film may include a thermochromic dye and/or nanoparticles configured to provide laser mark contrast. UV laser energy may be used to remove the die adhesive film in order to expose underlying features such as TSV pads.
摘要:
Described is an apparatus which comprises: a die having a first side and a second side opposite to the first side; a die backside film (DBF) or die attach film (DAF) disposed over the first side of the die; and a fluorocarbon layer disposed over the DBF or DAF. Described is a method which comprises: applying a die backside film (DBF) over a first side of a die, wherein the die has a second side which metal bumps; and applying a plasma polymerization process to treat the DBF with a fluorocarbon plasma.
摘要:
Embodiments of the present disclosure are directed to die adhesive films for integrated circuit (IC) packaging, as well as methods for forming and removing die adhesive films and package assemblies and systems incorporating such die adhesive films. A die adhesive film may be transparent to a first wavelength of light and photoreactive to a second wavelength of light. In some embodiments, the die adhesive film may be applied to a back or “inactive” side of a die, and the die surface may be detectable through the die adhesive film. The die adhesive film may be cured and/or marked with laser energy having the second wavelength of light. The die adhesive film may include a thermochromic dye and/or nanoparticles configured to provide laser mark contrast. UV laser energy may be used to remove the die adhesive film in order to expose underlying features such as TSV pads.