| 摘要 |
The method of the present invention includes a first step of preparing a substrate in which a plurality of circuit boards are integrally connected to one another, each of the circuit boards having conductive patterns which include pads formed on a surface of the circuit board; a second step of electrically connecting circuit elements to the respective conductive patterns on each of the circuit boards; a third step of positioning ends of leads above the respective pads by superposing a lead frame including the plurality of leads on the substrate, and fixing the leads to the pads; and a fourth step of separating the circuit boards from the substrate in a state where the leads are fixed to the respective pads on each of the circuit boards, and thus separating the leads from the lead frame.
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