Patent classifications
H01L2223/54426
PHOTOLITHOGRAPHY ALIGNMENT PROCESS FOR BONDED WAFERS
Various embodiments of the present disclosure are directed towards a semiconductor processing system including an overlay (OVL) shift measurement device. The OVL shift measurement device is configured to determine an OVL shift between a first wafer and a second wafer, where the second wafer overlies the first wafer. A photolithography device is configured to perform one or more photolithography processes on the second wafer. A controller is configured to perform an alignment process on the photolithography device according to the determined OVL shift. The photolithography device performs the one or more photolithography processes based on the OVL shift.
MECHANICAL WAFER ALIGNMENT DETECTION FOR BONDING PROCESS
Various embodiments of the present disclosure are directed towards a method for forming a semiconductor structure. The method includes loading a first wafer and a second wafer onto a bonding platform such that the second wafer overlies the first wafer. An alignment process is performed to align the second wafer over the first wafer by virtue of a plurality of wafer pins, where a plurality of first parameters are associated with the wafer pins during the alignment process. The second wafer is bonded to the first wafer. An overlay (OVL) measurement process is performed on the first wafer and the second wafer by virtue of the plurality of wafer pins, where a plurality of second parameters are associated with the wafer pins during the alignment process. An OVL shift is determined between the first wafer and the second wafer based on a comparison between the first parameters associated with the wafer pins during the alignment process and the second parameters associated with the wafer pins during the OVL measurement process.
MEMORY DEVICE AND MANUFACTURING METHOD THEREOF
A method for manufacturing a memory device includes forming a dielectric layer over a wafer, wherein the wafer has a device region and a peripheral region adjacent to the device region. A bottom via opening is formed in the dielectric layer and over the device region of the wafer and a trench is fanned in the dielectric layer and over the peripheral region of the wafer. A bottom electrode via is formed in the bottom via opening. A bottom electrode layer is conformally formed over the bottom electrode via and lining a sidewall and a bottom of the trench. A memory layer and a top electrode are formed over the bottom electrode layer.
3D SEMICONDUCTOR DEVICES AND STRUCTURES WITH METAL LAYERS
A semiconductor device including: a first silicon layer including a first single crystal silicon and a plurality of first transistors; a first metal layer disposed over the first silicon layer; a second metal layer disposed over the first metal layer; a third metal layer disposed over the second metal layer; a second level including a plurality of second transistors, the second level disposed over the third metal layer; a fourth metal layer disposed over the second level; a fifth metal layer disposed over the fourth metal layer, where the fourth metal layer is aligned to first metal layer with a less than 40 nm alignment error; and a via disposed through the second level, where each of the second transistors includes a metal gate, and where a typical thickness of the second metal layer is greater than a typical thickness of the third metal layer by at least 50%.
MULTILEVEL SEMICONDUCTOR DEVICE AND STRUCTURE WITH IMAGE SENSORS AND WAFER BONDING
An integrated device, the device including: a first level including a first mono-crystal layer, the first mono-crystal layer including a plurality of single crystal transistors; an overlaying oxide on top of the first level; a second level including a second mono-crystal layer, the second level overlaying the oxide, where the second mono-crystal layer includes a plurality of semiconductor devices; a third level overlaying the second level, where the third level includes a plurality of image sensors, where the second level is bonded to the first level, where the bonded includes an oxide to oxide bond; and an isolation layer disposed between the second mono-crystal layer and the third level.
Integrated device packages with integrated device die and dummy element
In one embodiment, an integrated device package is disclosed. The integrated device package can comprise a carrier an a molding compound over a portion of an upper surface of the carrier. The integrated device package can comprise an integrated device die mounted to the carrier and at least partially embedded in the molding compound, the integrated device die comprising active circuitry. The integrated device package can comprise a stress compensation element mounted to the carrier and at least partially embedded in the molding compound, the stress compensation element spaced apart from the integrated device die, the stress compensation element comprising a dummy stress compensation element devoid of active circuitry. At least one of the stress compensation element and the integrated device die can be directly bonded to the carrier without an adhesive.
SEMICONDUCTOR STRUCTURE AND METHOD OF FORMING THE SAME
A semiconductor structure includes a functional die, a dummy die, a redistribution structure, a seal ring and an alignment mark. The dummy die is electrically isolated from the functional die. The redistribution structure is disposed over and electrically connected to the functional die. The seal ring is disposed over the dummy die. The alignment mark is between the seal ring and the redistribution structure, wherein the alignment mark is electrically isolated from the dummy die, the redistribution structure and the seal ring. The insulating layer encapsulates the functional die and the dummy die.
Method for producing overlay results with absolute reference for semiconductor manufacturing
A method of processing a wafer is provided. The method includes providing a reference plate below the wafer. The reference plate includes a reference pattern. The reference plate is imaged to capture an image of the reference pattern by directing light through the wafer. A first pattern is aligned using the image of the reference pattern. The first pattern is applied to a working surface of the wafer based on the aligning.
ELECTRONIC PACKAGE STRUCTURE, ELECTRONIC SUBSTRATE AND METHOD OF MANUFACTURING ELECTRONIC PACKAGE STRUCTURE
An electronic package structure, an electronic substrate, and a method of manufacturing an electronic package structure are provided. The electronic package structure includes a substrate. The substrate includes a bonding region and an alignment structure. The bonding region is located at a side of the substrate and configured to bond with an electronic component. The alignment structure is located at the side of the substrate and out of the bonding region and configured to providing a fiducial mark for position-aligning, wherein the alignment structure comprises a first region and a second region visually distinct from the first region.
Improving surface topography by forming spacer-like components
A wafer having a first region and a second region is provided. A first topography variation exists between the first region and the second region. A first layer is formed over the first region and over the second region of the wafer. The first layer is patterned. A patterned first layer causes a second topography variation to exist between the first region and the second region. The second topography variation is smoother than the first topography variation. A second layer is formed over the first region and the second region. At least a portion of the second layer is formed over the patterned first layer.