Abstract:
PROBLEM TO BE SOLVED: To sufficiently hold the polishing speed and wafer uniformity by feeding chemical slurry to a spray means, by letting the slurry to pass through an opening, and by providing a presser means for forming the spray to be provided on the surface of the polishing pad. SOLUTION: Slurry is fed to the surface of a polishing pad 13 by a spray means 32 during polishing, injected or pressed in open holes in the polishing pad 13, and forms a slurry layer on a pad surface. The spray means 32 is provided with an entrance 33 for feeding the slurry. The slurry is pressed out from nozzles 35 as a form of the spray or the splash 34 under the pressure from the spray means 32. The spray pressure applied on the chemical slurry spray and the pad 13 allows the spray to cover the front face of the pad 13 and also to be pressed into the holes in the pad 13.
Abstract:
PROBLEM TO BE SOLVED: To integrate high performance copper inductors with global interconnects, and with either Al bond pads or Cu bond pads. SOLUTION: The integration of high performance copper inductors are conducted wherein a tall, Cu laminate spiral inductor is formed at the last metal level, and at the last metal + 1 level, with the metal levels interconnected by a bar via having the same spiral shape as the spiral metal inductors at the last metal level and the last metal + 1 level. The invention provides methods for integrating the formation of thick inductors with the formation of bond pads, terminals and interconnect wiring with the last metal + 1 wiring. The subject invention uses the dielectric deposition, spacer formation, and/or selective deposition of a passivating metal such as CoWP, to passivate a Cu inductor that is formed after the last metal layer. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To supply a special fluid phase chemical to a surface of a board by controllably discharging the capsuled material freely between a chemical and a mechanical polishing processes through the operation of process parameter such as an applying force. SOLUTION: Plural types of capsuled chemical are assembled in a polishing medium such as a polishing pad 63. As plural micro capsuled chemical, a reactive agent micro capsule A, a surface active micro capsule B, a buffer micro capsule C is used. These micro capsules A, B, C are broken at the time of use of them in a polishing process, and an appropriate quantity of a desirable chemical is directly supplied to a surface of a board to be polished or a wafer. Discharge of the content of the micro capsules A, B, C is controlled by the operation of a polishing parameter. The polishing parameter includes an appropriate value of downward force, friction coefficient, platen rotating speed, and wafer and carrier rotating speed for a specified chemical and mechanical polishing process.