METHOD FOR MANUFACTURING TAPE CARRIER FOR SEMICONDUCTOR DEVICE

PROBLEM TO BE SOLVED: To provide a method for manufacturing a tape carrier for a semiconductor device capable of holding a cross section of a wiring lead which is close to a rectangular section even under conditions that, as a wiring pitch of a circuit, L is 25 μm or less and S is 25 μm or less. SOL...

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1. Verfasser: MORISHITA SHIGEHIRO
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creator MORISHITA SHIGEHIRO
description PROBLEM TO BE SOLVED: To provide a method for manufacturing a tape carrier for a semiconductor device capable of holding a cross section of a wiring lead which is close to a rectangular section even under conditions that, as a wiring pitch of a circuit, L is 25 μm or less and S is 25 μm or less. SOLUTION: In a method for manufacturing a tape carrier for a semiconductor device, etching agent 1 is injected by a spray on a copper foil 3 provided on one plane or both planes of an insulating tape base material 5 by a subtract method, and an unwanted location of the copper foil 3 is removed by etching to form a circuit wiring pattern. The etching agent 1 after the spray injection in the etching process is accelerated by using assist air.
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SOLUTION: In a method for manufacturing a tape carrier for a semiconductor device, etching agent 1 is injected by a spray on a copper foil 3 provided on one plane or both planes of an insulating tape base material 5 by a subtract method, and an unwanted location of the copper foil 3 is removed by etching to form a circuit wiring pattern. 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subjects APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
ATOMISING APPARATUS
BASIC ELECTRIC ELEMENTS
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
NOZZLES
PERFORMING OPERATIONS
SEMICONDUCTOR DEVICES
SPRAYING APPARATUS
SPRAYING OR ATOMISING IN GENERAL
TRANSPORTING
title METHOD FOR MANUFACTURING TAPE CARRIER FOR SEMICONDUCTOR DEVICE
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