| 摘要 |
PROBLEM TO BE SOLVED: To prevent erroneous operation by making a bore hole as a light- receiving window in non-mold portion, the non-mold portion is folded and bent, and the structare is such that at least a part of mold portion is covered, and electric circuits such as integrated circuit elements and the like are protected from electromagnetic waves which are external noise. SOLUTION: There are a mold portion 11 and a non-mold portion 12 on a lead frame 10, and an infrared light-receiving element 13, an integrated circuit element 14, a chip capacitor 15 and a chip resistor 16 are mounted on the mold portion 11. At the non-mold portion 12, a folded and bent portion 20a having a draw hole 19, other folded and bent portions 20b and a bore hole 21 as a light window for infrared transmission are provided. And the non-mold portion 12 is folded and bent, and the structure is such that at least a part of the mold portion 11 is covered. By doing this, even during folding and bending process for the lead frame, a infrared light-receiving element 13, integrated circuit 14 and others will not be deformed or damaged, thereby improving the reliability of the infrared remote control light-receiving unit. |
