Abstract:
A method of forming at least one Micro-Electro-Mechanical System (MEMS) cavity (60b) includes forming a first sacrificial cavity layer (18) over a wiring layer (14) and substrate (10). The method further includes forming an insulator layer (40) over the first sacrificial cavity layer. The method further includes performing a reverse damascene etchback process on the insulator layer. The method further includes planarizing the insulator layer and the first sacrificial cavity layer. The method further includes venting or stripping of the first sacrificial cavity layer to a planar surface for a first cavity (60b) of the MEMS.
Abstract:
A method of forming at least one Micro-Electro-Mechanical System (MEMS) includes forming a lower wiring layer on a substrate. The method further includes forming a plurality of discrete wires (14) from the lower wiring layer. The method further includes forming an electrode beam (38) over the plurality of discrete wires. The at least one of the forming of the electrode beam and the plurality of discrete wires are formed with a layout which minimizes hillocks and triple points in subsequent silicon deposition (50).
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:
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.
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:
Es werden akustische Bulk-Wellen-Filter und/oder akustische Bulk-Resonatoren, die mit CMOS-Einheiten kombiniert sind, Verfahren zur Herstellung sowie eine Entwurfsstruktur bereitgestellt. Das Verfahren beinhaltet ein Bilden eines einkristallinen Trägers (18) aus einer Siliciumschicht (14) auf einem Isolator (12). Das Verfahren beinhaltet des Weiteren ein Bereitstellen einer Beschichtung aus einem Isolatormaterial (22) über dem einkristallinen Träger. Das Verfahren beinhaltet des Weiteren ein Bilden eines Durchkontakts (34a) durch das Isolatormaterial hindurch, wobei ein Wafer (10) freigelegt wird, der unter dem Isolator liegt. Das Isolatormaterial verbleibt über dem einkristallinen Träger. Das Verfahren beinhaltet des Weiteren ein Bereitstellen eines Opfermaterials (36) in dem Durchkontakt und über dem Isolatormaterial. Das Verfahren beinhaltet des Weiteren ein Bereitstellen einer Kappe (38) auf dem Opfermaterial. Das Verfahren beinhaltet des Weiteren ein Abführen des Opfermaterials und eines Anteils des Wafers unter dem einkristallinen Träger durch die Kappe hindurch, um einen oberen Hohlraum (42a) oberhalb des einkristallinen Trägers und einen unteren Hohlraum (42b) in dem Wafer unterhalb des einkristallinen Trägers zu bilden.