Method for manufacturing ceramic electronic component
AssigneeMurata Manufacturing Co., Ltd.
InventorsTatsuya Mizuno, Masaharu Konoue, Hiroki Hashimoto, Mitsuru Ueda
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Abstract
A method for manufacturing a ceramic electronic component capable of preventing degradation of the self alignment property and product characteristics due to absorption of flux into pores of a ceramic element assembly during soldering in mounting and a ceramic electronic component. In the method, a ceramic element assembly is subjected to an oil-repellent treatment by using an oil-repellent agent containing a polyfluoropolyether compound as a primary component and hydrofluoroether as a solvent, so as to avoid absorption of the flux by the ceramic element assembly.
Claims18
A method for manufacturing a ceramic electronic component provided with a ceramic element assembly and external electrodes provided on the surface of the ceramic element assembly, comprising:
- performing an oil-repellent treatment by forming the external electrodes on the surface of the ceramic element assembly and subjecting the ceramic element assembly to an oil-repellent treatment through the use of an oil-repellent treatment agent to form a flux infiltration preventing film on the surface of the ceramic element assembly,
- wherein the oil-repellent treatment agent contains a polyfluoropolyether compound,
- as a primary component and hydrofluoroether as a solvent,
- wherein the polyfluoropolyether compound in the oil-repellent treatment agent is at least one type selected from the group consisting of the compounds described in the following items (I), and (II):
- C3F7O(CF(CF3)CF2O)yCF(CF3)-A, and (I)
- CF3O(C2F4O)yCF2-A, (II)
- where A represents —CONH(CH2)3Si(OR)3,
- in which OR represents a methoxy group or an ethoxy group,
- and in the structural formulae in the items (I) and (II), y represents 4 to 40.
A method for manufacturing a ceramic electronic component provided with a ceramic element assembly and external electrodes, which are provided on the surface of the ceramic element assembly and which have plating films on the surfaces, comprising:
- performing an oil-repellent treatment by forming the plating films on the surfaces of the external electrodes and subjecting the ceramic element assembly to an oil-repellent treatment through the use of an oil-repellent treatment agent, so as to form a flux infiltration preventing film on the surface of the ceramic element assembly,
- wherein the oil-repellent treatment agent contains a polyfluoropolyether compound,
- as a primary component and hydrofluoroether as a solvent,
- wherein the polyfluoropolyether compound in the oil-repellent treatment agent is at least one type selected from the group consisting of the compounds described in the following items (I) and (II):
- C3F7O(CF(CF3)CF2O)yCF(CF3)-A, and (I)
- CF3O(C2F4O)yCF2-A, (II)
- where A represents —CONH(CH2)3Si(OR)3,
- in which OR represents a methoxy group or an ethoxy group,
- and in the structural formulae in the items (I) and (II), y represents 4 to 40.
A method for manufacturing a ceramic electronic component provided with a ceramic element assembly and external electrodes, which are provided on the surface of the ceramic element assembly and which have plating films on the surfaces, comprising:
- performing an oil-repellent treatment by subjecting the ceramic element assembly to an oil-repellent treatment, after formation of the external electrodes and before formation of the plating films, through the use of an oil-repellent treatment agent, so as to form a flux infiltration preventing film on the surface of the ceramic element assembly,
- wherein the oil-repellent treatment agent contains a polyfluoropolyether compound,
- as a primary component and hydrofluoroether as a solvent,
- wherein the polyfluoropolyether compound in the oil-repellent treatment agent is at least one type selected from the group consisting of the compounds described in the following items (I) and (II):
- C3F7O(CF(CF3)CF2O)yCF(CF3)-A, and (I)
- CF3O(C2F4O)yCF2-A, (II)
- in which A represents —CONH(CH2)3Si(OR)3,
- in which OR represents a methoxy group or an ethoxy group,
- and in the structural formulae in the items (I) and (II), y represents 4 to 40.
Dependencies are inferred from the claim text.