摘要:
The present disclosure provides a method of fabricating a semiconductor device, the method including providing a substrate having a seal ring region and a circuit region, forming a first seal ring structure over the seal ring region, forming a second seal ring structure over the seal ring region and adjacent to the first seal ring structure, and forming a first passivation layer disposed over the first and second seal ring structures. A semiconductor device fabricated by such a method is also provided.
摘要:
A method includes providing a substrate having a seal ring region and a circuit region, forming a seal ring structure over the seal ring region, forming a first frontside passivation layer above the seal ring structure, etching a frontside aperture in the first frontside passivation layer adjacent to an exterior portion of the seal ring structure, forming a frontside metal pad in the frontside aperture to couple the frontside metal pad to the exterior portion of the seal ring structure, forming a first backside passivation layer below the seal ring structure, etching a backside aperture in the first backside passivation layer adjacent to the exterior portion of the seal ring structure, and forming a backside metal pad in the backside aperture to couple the backside metal pad to the exterior portion of the seal ring structure. Semiconductor devices fabricated by such a method are also provided.
摘要:
An apparatus and manufacturing method thereof, wherein an integrated circuit is located in a first region of a substrate having first and second opposing major surfaces, and wherein an alignment mark is located in a second region of the substrate and extends through the substrate between the first and second surfaces. The alignment mark may protrude from the first and/or second surfaces, and/or may comprise a plurality of substantially similar alignment marks. The second region may interpose the first region and a perimeter of the substrate. The second region may comprise a scribe region.
摘要:
Methods and apparatus for packaging a backside illuminated (BSI) image sensor or a sensor device with an application specific integrated circuit (ASIC) are disclosed. According to an embodiment, a sensor device may be bonded together face-to-face with an ASIC without using a carrier wafer, where corresponding bond pads of the sensor are aligned with bond pads of the ASIC and bonded together, in a one-to-one fashion. A column of pixels of the sensor may share a bond bad connected by a shared inter-metal line. The bond pads may be of different sizes and configured in different rows to be disjoint from each other. Additional dummy pads may be added to increase the bonding between the sensor and the ASIC.
摘要:
Provided is an image sensor device. The image sensor device includes having a front side, a back side, and a sidewall connecting the front and back sides. The image sensor device includes a plurality of radiation-sensing regions disposed in the substrate. Each of the radiation-sensing regions is operable to sense radiation projected toward the radiation-sensing region through the back side. The image sensor device includes an interconnect structure that is coupled to the front side of the substrate. The interconnect structure includes a plurality of interconnect layers and extends beyond the sidewall of the substrate. The image sensor device includes a bonding pad that is spaced apart from the sidewall of the substrate. The bonding pad is electrically coupled to one of the interconnect layers of the interconnect structure.
摘要:
A method for reducing cross talk in image sensors comprises providing a backside illuminated image sensor wafer, forming an isolation region in the backside illuminated image sensor wafer, wherein the isolation region encloses a photo active region, forming an opening in the isolation region from a backside of the backside illuminated image sensor wafer and covering an upper terminal of the opening with a dielectric material to form an air gap embedded in the isolation region of the backside illuminated image sensor wafer.
摘要:
A method of forming of an image sensor device includes an isolation well formed in a pixel region of a substrate. The isolation well has a first conductivity type. A gate stack is formed over the isolation well on the substrate. A mask layer is formed over the isolation well and covering at least a majority portion of the gate stack. A plurality of dopants is implanted in the pixel region, using the gate stack and the mask layer as masks, to form doped isolation features. The plurality of dopants has the first conductivity type. A source region and a drain region are formed on opposite sides of the gate stack in the substrate. The source region and the drain region have a second conductivity type opposite to the A conductivity.
摘要:
A device includes a Backside Illumination (BSI) image sensor chip, which includes an image sensor disposed on a front side of a first semiconductor substrate, and a first interconnect structure including a plurality of metal layers on the front side of the first semiconductor substrate. A device chip is bonded to the image sensor chip. The device chip includes an active device on a front side of a second semiconductor substrate, and a second interconnect structure including a plurality of metal layers on the front side of the second semiconductor substrate. A first via penetrates through the BSI image sensor chip to connect to a first metal pad in the second interconnect structure. A second via penetrates through a dielectric layer in the first interconnect structure to connect to a second metal pad in the first interconnect structure, wherein the first via and the second via are electrically connected.
摘要:
A semiconductor device includes a device substrate having a front side and a back side corresponding to a front side and a back side of the semiconductor device, a metal feature formed on the front side of the device substrate, a bonding pad disposed on the back side of the semiconductor device and in electrical communication with the metal feature, and a shield structure disposed on the back side of the device substrate in which the shield structure and the bonding pad have different thicknesses relative to each other.
摘要:
Methods and apparatus for packaging a backside illuminated (BSI) image sensor or a BSI sensor device with an application specific integrated circuit (ASIC) are disclosed. A bond pad array may be formed in a bond pad area of a BSI sensor where the bond pad array comprises a plurality of bond pads electrically interconnected, wherein each bond pad of the bond pad array is of a small size which can reduce the dishing effect of a big bond pad. The plurality of bond pads of a bond pad array may be interconnected at the same layer of the pad or at a different metal layer. The BSI sensor may be bonded to an ASIC in a face-to-face fashion where the bond pad arrays are aligned and bonded together.