Abstract:
A process is described for semiconductor device integration at chip level or wafer level, in which vertical connections are formed through a substrate (1). A metallized feature (2) is formed in the top surface of a substrate, and a handling plate (35) is attached to the substrate. The substrate is then thinned at the bottom surface thereof to expose the bottom of the feature, to form a conducting through-via (20). The substrate may comprise a chip (44) having a device (30), e.g. a PE chip. The plate may be a wafer (65) attached to the substrate using a vertical stud/via interconnection. The substrate and plate may each have devices (30,60) fabricated therein, so that the process provides vertical wafer-level integration of the devices.
Abstract:
A matrix addressed display system designed so as to enable data line (22) repair by electronic mechanisms which is efficient and low in cost and thus increases yield. Such active data line (22) repair utilizes additional data driver (36) outputs, a defect map memory (48) in the TFT/LCD module and modification of the data stream to the data drivers (36) by additional circuits (42) between the display and the display adapter. A bus configuration on the display substrate is utilized which combines repair flexibility, low parasitic capacitance, and the ability to easily make the necessary interconnections. The number of interconnections is kept to a minimum, the connections are reliable, and the connections may be made with conventional wire bond or laser bond technology, or disk bond technology.
Abstract:
A method of making a photolithography mask for use in creating an electrical fuse on a semiconductor structure comprises initially determining a pattern for a desired electrical fuse, with the pattern including a fuse portion of substantially constant width except for a localized narrowed region of the fuse portion at which the electrical fuse is designed to blow. The method then includes providing a photolithography mask substrate and creating on the photolithography mask substrate a fuse mask element adapted to absorb transmission of an energy beam. The fuse mask element has a first mask portion of substantially constant width corresponding to the desired electrical fuse pattern portion of substantially constant width, and a second mask portion corresponding to the localized narrowed region of the fuse portion. The second mask portion comprises either an additional mask element spaced from the first mask portion, a narrowed width portion, or a gap in the first mask portion. The second mask portion is of a configuration sufficient to create a latent image of the electrical fuse pattern, including the localized narrowed region of the fuse portion at which the electrical fuse is designed to blow, upon passing the energy beam through the photolithography mask and onto a resist layer. Preferably, the fuse portion of substantially constant width on the determined fuse pattern has a design width less than about 0.25 mu m, and wherein the localized narrowed region of the fuse portion has a design width less than the design width of the fuse portion.
Abstract:
A fuse for semiconductor devices, in accordance with the present invention, includes a cathode (104) including a first dopant type, and an anode (102) including a second dopant type where the second dopant type is opposite the first dopant type. A fuse link (106) connects the cathode and the anode and includes the second dopant type. The fuse link and the cathode form a junction (111) therebetween, and the junction is configured to be reverse biased relative to a cathode potential and an anode potential. A conductive layer (103) is formed across the junction such that current flowing at the junction is diverted into the conductive layer to enhance material migration to program the fuse.
Abstract:
A method of making a photolithography mask for use in creating an electrical fuse on a semiconductor structure comprises initially determining a pattern for a desired electrical fuse, with the pattern including a fuse portion of substantially constant width except for a localized narrowed region of the fuse portion at which the electrical fuse is designed to blow. The method then includes providing a photolithography mask substrate and creating on the photolithography mask substrate a fuse mask element adapted to absorb transmission of an energy beam. The fuse mask element has a first mask portion of substantially constant width corresponding to the desired electrical fuse pattern portion of substantially constant width, and a second mask portion corresponding to the localized narrowed region of the fuse portion. The second mask portion comprises either an additional mask element spaced from the first mask portion, a narrowed width portion, or a gap in the first mask portion. The second mask portion is of a configuration sufficient to create a latent image of the electrical fuse pattern, including the localized narrowed region of the fuse portion at which the electrical fuse is designed to blow, upon passing the energy beam through the photolithography mask and onto a resist layer. Preferably, the fuse portion of substantially constant width on the determined fuse pattern has a design width less than about 0.25 mu m, and wherein the localized narrowed region of the fuse portion has a design width less than the design width of the fuse portion.
Abstract:
PROBLEM TO BE SOLVED: To provide a structure and a method for reducing thermal mechanical stress in stack and via. SOLUTION: An interconnection structure for a semiconductor device comprises an organic low-k (low specific dielectric constant) dielectric layer formed on a lower metallization. The via to be formed here is in this low-k dielectric layer, and combines a lower metallization line formed on the lower metallization level and an upper metallization line formed on an upper metallization level. This via is surrounded by structure collar selected from material with CTE that can protect the via from shearing force generated after the thermal expansion of the low-k dielectric layer. COPYRIGHT: (C)2004,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a method for manufacturing an integrated circuit having an improved fuse structure part and laser fuse links. SOLUTION: The fuse structure part in an integrated circuit chip comprises an insulated semiconductor substrate, a fuse bank 410 which is constituted of a plurality of the parallel fuse links 402, 404 and 404 on the same plane and which are integrated with the insulated semiconductor substrate and voids 410 and 412 which scatter between pairs of fuse links and which extend across the plane delimited by the fuse links on the same plane. The voids 410 and 412 surrounding a spot 420 to be hit by a laser beam during a fusing operation function as crack stops for preventing damage against an adjacent circuit element or the other existing fuse link. Thus, a denser pitch between fuses can be obtained by suitably forming and positioning the voids. COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To improve the control of thickness of an insulator layer on a fuse structure, by a method wherein a dielectric structure is positioned on a conduction level, and electric connection is performed at a selected position of the conduction level through the dielectric structure. SOLUTION: On a semiconductor substrate 10 an electric conduction level 1 is formed by using conductive material selected out of aluminum, copper, aluminum copper alloy, and doped polysilicon having metal type conductivity. A dielectric etching stop material layer 2 is stuck on the upper surface of the electric conduction level 1. Electric connection is performed to a selected position of the electric conduction level 1 through the dielectric etching stop material layer 2, and a conductive fuse 21 is constituted. As a result control of the thickness of an insulator layer on the fuse structure containing a self-aligned isolation cap can be improved.
Abstract:
PROBLEM TO BE SOLVED: To array a larger number of fuses densely by electrically connecting at least two fuses that contain a fusing part arrayed in a first level of a multi- layer semiconductor device, respectively. SOLUTION: Each fuse 13 contains a part 15 that is actually fused. The part 15 to be fused is arrayed in a first metal level M1. Like the other part of the fuse 13, the part 15 that is actually fused is made typically of a electrically conductive material, especially aluminum. A termination of each part 15 to be fused is connected to a connector bias 17 that connects that fuse 13 with a connector 19. A gate contact 23 is vertical to a direction of the fuse 13. The gate contact 23 can be connected to a ground that is common to all of existing fuse circuits. Therefore, fuse density is doubled without narrowing the fuse pitch.
Abstract:
PROBLEM TO BE SOLVED: To provide a method for manufacturing an integrated circuit which has a improved fuse structure and a laser fuse link. SOLUTION: A fuse structure within an integrated circuit chi is described which includes an insulated semiconductor substrate, a fuse band 4 consisting of a plurality of parallel fuse links 402, 404, and 406 on the same plane and united with the insulated semiconductor substrate, and voids 410 and 412 scattered among fuse links each in a pair and extending beyond the plane demarcated by the fuse links on the same plane. The voids 410 and 412, surrounding the spot 420 which should be hit with a laser beam during the operation of fuse fusion function as crack stopper for preventing damages to the adjacent circuit element or other existing fuse link. Closer pitch between fuses can be obtained by forming and positioning the voids properly.