Abstract:
Methods and apparatus for an interposer with dams used in packaging dies are disclosed. An interposer may comprise a metal layer above a substrate. A plurality of dams may be formed above the metal layer around each corner of the metal layer. Dams may be formed on both sides of the interposer substrate. A dam surrounds an area where connectors such as solder balls may be located to connect to other packages. A non-conductive dam may be formed above the dam. An underfill may be formed under the package connected to the connector, above the metal layer, and contained within the area surrounded by the dams at the corner, so that the connectors are well protected by the underfill. Such dams may be further formed on a printed circuit board as well.
Abstract:
Methods and apparatus for an interposer with dams used in packaging dies are disclosed. An interposer may comprise a metal layer above a substrate. A plurality of dams may be formed above the metal layer around each corner of the metal layer. Dams may be formed on both sides of the interposer substrate. A dam surrounds an area where connectors such as solder balls may be located to connect to other packages. A non-conductive dam may be formed above the dam. An underfill may be formed under the package connected to the connector, above the metal layer, and contained within the area surrounded by the dams at the corner, so that the connectors are well protected by the underfill. Such dams may be further formed on a printed circuit board as well.
Abstract:
Pellicle-mask systems for advanced lithography, such as extreme ultraviolet lithography, are disclosed herein. An exemplary pellicle-mask system includes a mask having an integrated circuit (IC) pattern, a pellicle membrane, and a pellicle frame. The pellicle frame has a first surface attached to the pellicle membrane and a second surface opposite the first surface attached to the mask, such that the IC pattern of the mask is positioned within an enclosed space defined by the mask, the pellicle membrane, and the pellicle frame. A void is defined between the pellicle frame and the mask, where the void is defined by a portion of the second surface of the pellicle membrane not attached to the mask. The void is not in communication with the enclosed space and is not in communication with an exterior space of the pellicle-mask system.
Abstract:
A method includes followings operations. A substrate including a first surface and a second surface is provided. The substrate and a transparent film are heated to attach the transparent film on the first surface. A first coefficient of a thermal expansion (CTE) mismatch is between the substrate and the transparent film. The substrate and the transparent film are cooled. A polymeric material is disposed on the second surface. A second CTE mismatch is between the substrate and the polymeric material. The second CTE mismatch is counteracted by the first CTE mismatch.
Abstract:
An embodiment apparatus includes a dielectric layer in a die, a conductive trace in the dielectric layer, and a protrusion bump pad on the conductive trace. The protrusion bump pad at least partially extends over the dielectric layer, and the protrusion bump pad includes a lengthwise axis and a widthwise axis. A ratio of a first dimension of the lengthwise axis to a second dimension of the widthwise axis is about 0.8 to about 1.2.
Abstract:
A pellicle is disposed over a lithography mask. An acoustic wave generator is placed over the pellicle. The acoustic wave generator is configured to generate acoustic waves to cause the pellicle to vibrate at a target resonance frequency. A resonance detection tool is configured to detect an actual resonance frequency of the pellicle in response to the acoustic waves. One or more electronic processors are configured to estimate an age condition of the pellicle as a function of a shift of the actual resonance frequency from the target resonance frequency.
Abstract:
The present disclosure provides an apparatus for a semiconductor lithography process in accordance with some embodiments. The apparatus includes a pellicle membrane, a pellicle frame attached to the pellicle membrane. The pellicle frame has a surface that defines at least one groove. The apparatus further includes a substrate that is in contact with the surface of the pellicle frame such that the grove is positioned between the pellicle frame and the substrate.
Abstract:
A method includes followings operations. A substrate including a first surface and a second surface is provided. The substrate and a transparent film are heated to attach the transparent film on the first surface. A first coefficient of a thermal expansion (CTE) mismatch is between the substrate and the transparent film. The substrate and the transparent film are cooled. A polymeric material is disposed on the second surface. A second CTE mismatch is between the substrate and the polymeric material. The second CTE mismatch is counteracted by the first CTE mismatch.
Abstract:
A chip includes a semiconductor substrate, an electrical connector over the semiconductor substrate, and a molding compound molding a lower part of the electrical connector therein. A top surface of the molding compound is lower than a top end of the electrical connector. A recess extends from the top surface of the molding compound into the molding compound.
Abstract:
An embodiment apparatus includes a dielectric layer in a die, a conductive trace in the dielectric layer, and a protrusion bump pad on the conductive trace. The protrusion bump pad at least partially extends over the dielectric layer, and the protrusion bump pad includes a lengthwise axis and a widthwise axis. A ratio of a first dimension of the lengthwise axis to a second dimension of the widthwise axis is about 0.8 to about 1.2.