CONNECTION METHOD, CONNECTION STRUCTURE, AND ELECTRONIC DEVICE
First Claim
1. A connection method comprising:
- a step (a1) of preparing a base material including an electrode for connection using an adhesive;
a step (b1) of covering the electrode for connection using an adhesive with an organic film configured to prevent oxidation, the electrode being arranged on the base material;
a step (c1) of removing or thinning the organic film; and
after the step (c1), a step (d1) of bonding the electrode for connection using an adhesive to a connection conductor with an adhesive mainly containing a thermosetting resin to establish electrical connection.
2 Assignments
0 Petitions
Accused Products
Abstract
[Object] Provided are a connection method and an electronic device, in which the manufacturing process can be simplified, and a connection structure using an adhesive can be produced at low cost.
[Solution] A connection method according to the present invention includes a step (a1) of preparing base materials 10 and 21 each including an electrode for connection using an adhesive, a step (b1) of covering electrodes 12 and 22 for connection using an adhesive with organic films 15 configured to prevent oxidation, the electrodes 12 and 22 being located on the base materials, a step (c1) of removing or thinning the organic films, and after the step (c1), a step (d1) of bonding the electrodes for connection using an adhesive to each other with an adhesive 30 mainly containing a thermosetting resin to establish electrical connection.
18 Citations
36 Claims
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1. A connection method comprising:
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a step (a1) of preparing a base material including an electrode for connection using an adhesive; a step (b1) of covering the electrode for connection using an adhesive with an organic film configured to prevent oxidation, the electrode being arranged on the base material; a step (c1) of removing or thinning the organic film; and after the step (c1), a step (d1) of bonding the electrode for connection using an adhesive to a connection conductor with an adhesive mainly containing a thermosetting resin to establish electrical connection. - View Dependent Claims (2, 3, 12, 13, 14, 15, 16, 17, 18, 20)
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4. A connection method comprising:
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a step (a2) of preparing a base material including an electrode for connection using an adhesive and an electrode for connection using solder; a step (b2) of covering only the electrode for connection using solder with an organic film formed by OSP treatment or a noble metal plating film, the electrode for connection using solder being arranged on the base material; a step (c2) of joining the electrode for connection using solder to a connection conductor using solder by solder reflow treatment in a non-oxidizing atmosphere; and after the step (c2), a step (d2) of bonding the electrode for connection using an adhesive to a connection conductor with an adhesive mainly containing a thermosetting resin to establish electrical connection. - View Dependent Claims (5, 6, 7, 21, 23, 25, 27, 29, 31, 33, 35)
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8. A connection method comprising:
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a step (a3) of preparing a base material including an electrode for connection using an adhesive and an electrode for connection using solder; a step (b3) of covering the electrode for connection using an adhesive and the electrode for connection using solder with oxidation preventing films, the electrode for connection using an adhesive and the electrode for connection using solder being arranged on the base material; after the step (b3), a step (c3) of bonding the electrode for connection using an adhesive to a connection conductor with an adhesive mainly containing a thermosetting resin to establish electrical connection; and after the step (c3), a step (d3) of joining the electrode for connection using solder to a connection conductor using solder by solder reflow treatment in a non-oxidizing atmosphere, wherein an increase in connection resistance between the electrode for connection using an adhesive and the connection conductor before and after the step (d3) is within a predetermined range. - View Dependent Claims (9, 10, 11, 22, 24, 26, 28, 30, 32, 34, 36)
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19. A connection structure between a first conductor on a first member and a second conductor on a second member, the first conductor and the second conductor being bonded to each other with an adhesive mainly containing a thermosetting resin to establish electrical connection,
wherein a portion of the first conductor and a portion of the second conductor are conductive with each other, and a surface, excluding the portion, of at least one of the first conductor and the second conductor is covered with an organic film having a thickness of 0.05 μ - m or less and being configured to prevent oxidation, or is exposed to the adhesive without being covered with an organic film.
Specification