Lift-off method and chemical liquid tank
A lift-off procedure is provided which enables prevention of damage to a wiring pattern caused by contact of a metal being peeled off from a wafer with a wiring pattern at a time of lift-off procedure. A wafer having a surface on which a pattern is formed which contains a pattern portion to be remov...
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| creator | OHMURO KAZUHIKO NITTA YOSHIKI SUZUKI MASARU |
| description | A lift-off procedure is provided which enables prevention of damage to a wiring pattern caused by contact of a metal being peeled off from a wafer with a wiring pattern at a time of lift-off procedure. A wafer having a surface on which a pattern is formed which contains a pattern portion to be removed is soaked into a chemical liquid at an angle at which the surface faces downward. |
| format | Patent |
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| subjects | BASIC ELECTRIC ELEMENTS CLEANING CLEANING IN GENERAL ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS PERFORMING OPERATIONS PREVENTION OF FOULING IN GENERAL SEMICONDUCTOR DEVICES TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ARTCOLLECTIONS [XRACs] AND DIGESTS TRANSPORTING |
| title | Lift-off method and chemical liquid tank |
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