Abstract:
Planar cavity Micro-Electro-Mechanical System (MEMS) structures, methods of manufacture and design structure are provided. The method includes forming at least one Micro-Electro-Mechanical System (MEMS) cavity (60a, 60b) having a planar surface using a reverse damascene process.
Abstract:
A semiconductor structure and methods for forming the same. A semiconductor fabrication method includes steps of providing a structure. A structure incl udes (a) a dielectric layer, (b) a first electrically conductive region buried in the dielectric layer, wherein the first electrically conductive region comprises a first electrically conductive material, and (c) a second electrically conductive region buried in the dielectric layer, wherein the second electrically conductive region comprises a second electrically conductive material being different from the first electrically conductive material. The method further includes the steps of creating a first hole and a second hole in the dielectric layer resulting in the first and second electrically conductive regions being exposed to a surrounding ambient through the first and second holes, respectively. Then, the method further includes the steps of introducing a basic solvent to bottom walls and side walls of the first and second holes.
Abstract:
A backside contact structure and method of fabricating the structure. The method includes: forming a dielectric isolation (250) in a substrate (100), the substrate (100) having a frontside and an opposing backside; forming a first dielectric layer (105) on the frontside of the substrate (100); forming a trench (265C) in the first dielectric layer (105), the trench (265C) aligned over and within a perimeter of the dielectric isolation (250) and extending to the dielectric isolation (250); extending the trench (265C) formed in the first dielectric layer (1 05) through the dielectric isolation (250) and into the substrate (1 00)to a depth (Dl ) less than a thickness of the substrate (1 00); filling the trench (265C) and co-planarizing a top surface of the trench (265C) with a top surface of the first dielectric layer (1 05) to form an electrically conductive through via (270C); and thinning the substrate (100) from a backside of the substrate (100) to expose the through via (270C).
Abstract:
A method and semiconductor device. In the method, at least one partial via (26) is etched in a stacked structure and a border (32) is formed about the at least one partial via (26). The method further includes performing thick wiring using selective etching while continuing via etching to at least one etch stop layer (22).
Abstract:
Disclosed herein is a surface acoustic wave (SAW) filter and method of making the same. The SAW filter includes a piezoelectric substrate (110; Fig 3); a planar barrier layer (120) disposed above the piezoelectric substrate, and at least one conductor buried (130) in the piezoelectric substrate and the planar barrier layer.
Abstract:
Micro-Electro-Mechanical System (MEMS) structures, methods of manufacture and design structures are provided. The method of forming a MEMS structure includes forming fixed actuator electrodes (115) and a contact point on a substrate. The method further includes forming a MEMS beam (100) over the fixed actuator electrodes and the contact point. The method further includes forming an array of actuator electrodes (105') in alignment with portions of the fixed actuator electrodes, which are sized and dimensioned to prevent the MEMS beam from collapsing on the fixed actuator electrodes after repeating cycling. The array of actuator electrodes are formed in direct contact with at least one of an underside of the MEMS beam and a surface of the fixed actuator electrodes.
Abstract:
A method of manufacturing an integrated circuit structure forms a first opening in a substrate (100; Figure 1) and lines the first opening with a protective liner. (102) The method deposits a material into the first opening (104) and forms a protective material over the substrate. The protective material includes a process control mark and includes a second opening above, and aligned with, the first opening. (108) The method removes the material from the first opening through the second opening in the protective material. (110) The process control mark comprises a recess within the protective material that extends only partially through the protective material, such that portions of the substrate below the process control mark are not affected by the process of removing the material.
Abstract:
A chip includes a CMOS structure having a bulk device (20) disposed in a first region (24) of a semiconductor substrate (50) in conductive communication with an underlying bulk region (18) of the substrate, the first region (24) and the bulk region (20) having a first crystal orientation. A SOI device (10) is disposed in a semiconductor-on-insulator ("SOI") layer (14) separated from the bulk region of the substrate by a buried dielectric layer (16), the SOI layer having a different crystal orientation from the first crystal orientation. In one example, the bulk device includes a p-type field effect transistor ("PFET") and the SOI device includes an n-type field effect transistor ("NFET") device. Alternatively, the bulk device can include an NFET and the SOI device can include a PFET. When the SOI device has a gate conductor (11) in conductive communication with a gate conductor (21) of the bulk device, charging damage can occur to the SOI device, except for the presence of diodes in reverse-biased conductive communication with the bulk region. The diodes are operable to conduct a discharge current to the bulk region when either a voltage on the gate conductor or a voltage on the source or drain region of the SOI device exceeds a diode's breakdown voltage.
Abstract:
An image sensor (20) and method of fabrication wherein the sensor includes Copper (Cu) metallization levels (135a, 135b) allowing for incorporation of a thinner interlevel dielectric stack (130a-130c) to result in a pixel array (100) exhibiting increased light sensitivity. The image sensor includes structures having a minimum thickness of barrier layer metal (132a, 132b) that traverses the optical path of each pixel in the sensor array or, that have portions (50) of barrier layer metal selectively removed from the optical paths of each pixel, thereby minimizing reflectance. That is, by implementing various block or single mask methodologies, portions of the barrier layer metal are completely removed at locations of the optical path for each pixel in the array. In a further embodiment, the barrier metal layer (142) may be formed atop the Cu metallization by a self-aligned deposition.
Abstract:
A method of forming a semiconductor device, and the device so formed. Depositing alternating layers of a first dielectric material (12a-f) and a second dielectric material (14a-f), wherein the first and second dielectric materials are selectively etchable at different rates. Forming a first feature (22, 24) within the alternating layers of dielectric material. Selectively etching the alternating layers of dielectric material to remove at least a portion (26) of the first dielectric material in each layer having the first dielectric material and leaving the second dielectric material as essentially unetched.