摘要:
A method of forming a planarized photoresist coating on a substrate having holes with different duty ratios is described. A first photoresist preferably comprised of a Novolac resin and a diazonaphthoquinone photoactive compound is coated on a substrate and baked at or slightly above its Tg so that it reflows and fills the holes. The photoresist is exposed without a mask at a dose that allows the developer to thin the photoresist to a recessed depth within the holes. After the photoresist is hardened with a 250° C. bake, a second photoresist is coated on the substrate to form a planarized film with a thickness variation of less than 50 Angstroms between low and high duty ratio hole regions. One application is where the second photoresist is used to form a trench pattern in a via first dual damascene method. Secondly, the method is useful in fabricating MIM capacitors.
摘要:
A card edge connector includes an insulating body having opposite lateral side frames for mounting respectively two metallic pieces thereon, and terminals mounted in the insulating body and coupled to a circuit board. When an insertion side with conductive terminals of an electronic card is inserted into an insertion groove in the insulating body, the conductive terminals contact respectively contact portions of the terminals extending into the insertion groove. Each metallic piece includes first and second resilient arms extending from a base, and a carved metallic piece extending from the first resilient arm. When the insertion side of the electronic card is inserted into the insertion groove, each lateral side of the electronic card is clamped between the anchoring member and the second resilient arm of a corresponding metallic piece, and is formed with a notch engaging a projection of the second resilient arm of the corresponding metallic piece.
摘要:
A semiconductor device includes a semiconductor substrate having a front surface and a back surface, elements formed on the substrate, interconnect metal layers formed over the front surface of the substrate, including a topmost interconnect metal layer, an inter-metal dielectric for insulating each of the plurality of interconnect metal layers, and a bonding pad disposed within the inter-metal dielectric, the bonding pad in contact with one of the interconnect metal layers other than the topmost interconnect metal layer.
摘要:
A method of forming a planarized photoresist coating on a substrate having holes with different duty ratios is described. A first photoresist preferably comprised of a Novolac resin and a diazonaphthoquinone photoactive compound is coated on a substrate and baked at or slightly above its Tg so that it reflows and fills the holes. The photoresist is exposed without a mask at a dose that allows the developer to thin the photoresist to a recessed depth within the holes. After the photoresist is hardened with a 250° C. bake, a second photoresist is coated on the substrate to form a planarized film with a thickness variation of less than 50 Angstroms between low and high duty ratio hole regions. One application is where the second photoresist is used to form a trench pattern in a via first dual damascene method. Secondly, the method is useful in fabricating MIM capacitors.
摘要:
A method of preparing self-aligned isolation regions between two neighboring sensor elements on a substrate. The method includes patterning an oxide layer to form an opening between the two neighboring sensor elements on the substrate. The method further includes performing a first implant to form a deep doped region between the two neighboring sensor elements and starting at a distance below a top surface of the substrate. The method further includes performing a second implant to form a shallow doped region between the two neighboring sensor elements, wherein a bottom portion of the shallow doped region overlaps with a top portion of the deep doped region.
摘要:
A method of forming of an image sensor device includes a patterned hardmask layer is formed over a substrate. The patterned hard mask layer has a plurality of first openings in a periphery region, and a plurality of second openings in a pixel region. A first patterned mask layer is formed over the pixel region to expose the periphery region. A plurality of first trenches is etched into the substrate in the periphery region. Each first trench, each first opening and each second opening are filled with a dielectric material. A second patterned mask layer is formed over the periphery region to expose the pixel region. The dielectric material in each second opening over the pixel region is removed. A plurality of dopants is implanted through each second opening to form various doped isolation features in the pixel region.
摘要:
A sensor array is integrated onto the same chip as core logic. The sensor array uses a first polysilicon and the core logic uses a second polysilicon. The first polysilicon is etched to provide a tapered profile edge in the interface between the sensor array and the core logic regions to avoid an excessive step. Amorphous carbon can be deposited over the interface region without formation of voids, thus providing for improved manufacturing yield and reliability.
摘要:
Semiconductor devices and manufacturing methods thereof are disclosed. In one embodiment, a semiconductor device includes a workpiece with a first region having a plurality of first features and a second region having a plurality of second features proximate the first region. The first region and the second region share a patterning overlap region disposed between the first region and the second region. The patterning overlap region includes a residue feature with an aspect ratio of about 4 or less.
摘要:
An image sensor device is provided. A substrate has a photosensor region formed therein and/or thereon. An interconnection structure is formed over the substrate, and includes metal lines formed in inter-metal dielectric (IMD) layers. At least one IMD-level micro-lens is/are formed in at least one of the IMD layers over the photosensor region. Preferably, barrier layers are located between the IMD layers. Preferably, each of the barrier layers at each level has a net thickness limited to 100 angstroms or less at locations over the photosensor region, except at locations where the IMD-level micro-lenses are located. The IMD-level micro-lenses and the etch stop layers preferably have a refractive index greater than that of the IMD layers. A cap layer is preferably formed on the metal lines, especially when the metal lines include copper. An upper-level micro-lens may be located on a level that is above the interconnection structure.
摘要:
Some embodiments relate to a method for processing a workpiece. In the method, an anti-reflective coating layer is provided over the workpiece. A first patterned photoresist layer, which has a first photoresist tone, is provided over the anti-reflective coating layer. A second patterned photoresist layer, which has a second photoresist tone opposite the first photoresist tone, is provided over the first patterned photoresist layer. An opening extends through the first and second patterned photoresist layers to allow a treatment to be applied to the workpiece through the opening. Other embodiments are also disclosed.