摘要:
Disclosed is a process for producing multi-level conductor/insulator films on a processed semiconductor substrate having a conductor pattern. The insulator layers, each comprise a photosensitive polyimide polymer composition, and this allows the desired wiring channels and stud vias to be formed directly in the insulator layers, without the use of separate masking layers and resulting image transfer steps, thus providing a less cumbersome and costly process.
摘要:
Disclosed is a process for passivating a metal surface in a metal/polyimide structure, such as a polyimide layer on a semiconductor substrate containing a pattern of metallization. The process involves the formation of an intermediate layer of a silsesquioxane polymer between the polyimide layer and the substrate. The silsesquioxane layer passivates the metal, to inhibit interaction between the metal surface and the polyimide precursor material used in forming the polyimide, to provide a moisture-resistant and oxidation-resistant interface.
摘要:
A method for forming an electrically conductive line between two layers of insulating material and method for connecting the line through both layers of the insulating material to the opposite surfaces is provided. In the method, first, second and third layers of insulating material are provided wherein the first and third layers are separated by the second layer of insulating material which is different in etch rate from the first and third layers. The edge portion of all three layers is exposed and the insulating layer of the second material is selectively etched to remove the revealed edge portion and provide a slot between the first and third layers of insulating material. Also openings are provided in both the first and third layers of insulating material which communicate with the slot and extend respectively through the layers of the first and third insulating material. Thereafter, a conductive material such as tungsten is deposited in the slot and the openings and also on the face of the stacked insulating material. Finally, the excess tungsten is removed from the faces of the insulating material of the first and third layers leaving a conductive line sandwiched between the first and third insulating layers of the material; also metal remains in the openings formed to thereby form conductive studs extending from the line to the opposite surfaces of the insulating material sandwich so formed.
摘要:
A method for temporarily attaching an electrical component to a pad, testing the component, removing and replacing the component if necessary, and making a final attachment of the component to the pad. The method provides for attachment and removal of components, to and from pads located on the substrate of a printed circuit board, wherein the method enables components to be easily removed prior to final assembly without damaging the circuit board or components mounted thereon. The method utilizes a layer of conductive, radiation-curable adhesive placed between the component's lead and the pad. Radiation is then directed through a mask onto a portion of the adhesive layer, which cures the portion while leaving a remaining area of the adhesive layer uncured. Because the portion of the adhesive layer that receives the radiation, and is consequently cured by the radiation, is only a limited portion of the whole adhesive layer, the component may be easily removed from the pad by applying a small mechanical force. Following such removal, the component or a replacement thereof may be attached to the remaining area. The final stage of the method cures the remaining area of uncured adhesive by exposing the remaining area to radiation.
摘要:
A semiconductor device which includes a first semiconductor chip mounted on top of a lead frame which is molded within a plastic body. During the molding process a cavity is formed on the bottom of the lead frame. After testing or burn-in of the first chip a second semiconductor chip is mounted and electrically connected to the lead frame. The second chip may then be sealed within the cavity to form a multichip module.
摘要:
Stacked three-dimensional devices can be prepared by stacking wafers as an alternative to stacking individual devices. Chip regions are formed on several wafers with each chip region being surrounded by a separation region, such as an insulator filled trench. The wafers are then stacked with the chip regions in alignment. Aligning the wafers can be facilitated using notched regions in the periphery of the wafers. The wafers are then joined together by lamination. After laminating the stacks of wafers, stacks of chips are separated by etching, dicing or other processes, which separate out stacked chip devices from the stacked wafer at the chip separation regions. The process allows several stacked chip devices to be manufactured simultaneously.
摘要:
A method of forming sub-lithographic elements and spaces therebetween where the pitch may be reduced with continuously adjustable line and space dimensions, and a structure resulting from the method, are disclosed. A plurality of spaced convertible members are formed on a substrate. A portion of each member is then converted, thereby reducing the dimensions of the unconverted portion of the member while increasing the width of the member plus its converted layer. A conformal layer of material is then deposited over the converted members, followed by directional etching of the conformal layer. The unconverted portion of the member is then removed. The line and space dimensions can be continuously adjusted by altering either or both of the member's converted layer and conformal layer.
摘要:
A chemical mechanical planarization tool and method are presented employing a non-linear motion of the carrier arm relative to the polishing pad. The non-linear motion of the carrier arm relative to the polishing pad can be accomplished in a variety of ways, for example, employing a mechanical template having an irregular opening or programming the carrier displacement mechanism to move the carrier in an irregular, non-rotational X-Y path over the polishing pad.
摘要:
A fabrication method and resultant electronic module having one or more surfaces enhanced with interconnects and components. Electronic modules having, for example, resistors and capacitors integral with a side surface thereof are disclosed. Further described are electronic modules with interconnects electrically attaching for example, side to side, or side to end surfaces are described. Moreover, discussion of an electronic module having a Silicon Front Face chip is contained herein. Specific details of the fabrication method, resulting electronic module, and related wafer processing are set forth.
摘要:
Fabrication methods and resultant semiconductor structures wherein stack structures are selectively insulated from an enveloping layer of local interconnect material. The fabrication methods involve forming an overpass insulator(s) simultaneously with the underlying gate. Specifically, a layer of non-erodible insulating material is deposited over a layer of conductive material roughly in the area to comprise the stack structure. A simultaneous etch is then performed, and the resultant insulator portion is self-aligned to the underlying conductive material. The insulator portion insulates the stack from a subsequently deposited and planarized layer of local interconnect. Further processing options include decoupling silicide formation on selected stack structures, and various planarization and etching approaches for different available technologies. Specific details of the fabrication methods and resultant structures are set forth.