Low height lead frame for LED device and the manufacturing method thereof
A technology for LED devices and lead frames, which is applied in the field of lead frames for small-sized LED devices, and can solve problems such as resin cracks, epoxy resin leakage, lead frames and resin peeling, etc.
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[0049] Hereinafter, a lead frame for a small-sized LED device according to an embodiment of the present invention will be described in detail with reference to the attached drawings.
[0050] 3 is a cross-sectional view of a long irregular-shaped metal material used to manufacture a lead frame for a small-sized LED device according to an embodiment of the present invention, and is a cross-sectional view perpendicular to the longitudinal direction.
[0051] Both sides of the thin part 1 with a thickness of about 0.15 to 0.25 mm are sandwiched by normal parts 2a and 2b with a thickness of about 0.4 to 0.5 mm in parallel. Considering the electrical conductivity and price, copper alloy and stainless steel can be used as the material.
[0052] Fig. 4 is a cross-sectional view of a state in which a V-shaped groove is formed by drilling the long irregular-shaped metal material shown in Fig. 3 through a multi-station press (multi-stage sequential transfer press group). The drilled po...
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