SHORT-PITCH LEAD FRAME FOR SMD-TYPE LED

摘要

A short-pitch lead frame for an SMD (surface mounted device)-type LED (light emitting diode) comprises a stand formed by a plurality of lead frame units (1), a plurality of technical side units (2) on the two sides of the stand, and positioning holes (3) arranged on the technical side units (2). The distance a between two adjacent positioning holes (3) is less than 12.0 mm and the row pitch e of the lead frame units (1) is less than 8.0 mm. The short-pitch lead frame for the SMD-type LED shortens the pitch and row pitch between two adjacent centre lines on a single lead frame for the SMD-type LED. For example: the pitch and row pitch in the lead frame for the SMD-type LED are 9.00 mm and 6.7 mm respectively. The amount of materials of the lead frame is saved by 35.71%, compared to a traditional lead frame for the SMD-type LED which has a pitch of 12.00 mm and a row pitch of 8.00 mm. Thus the material consumption and cost of production are reduced, and the production efficiency is greatly improved at the same time.