| 摘要 |
An optical coupler includes an optical transmitting unit and an optical receiving unit in a facing arrangement. The optical transmitting unit includes a power lead having a first die-pad portion, a light emitting element on the first die-pad portion, a ground lead having a second die-pad portion, and an integrated circuit on the second die-pad portion. The integrated circuit has a power pad portion, a light emitting element pad portion, and input pad portions thereon. An inter-center distance between an inner lead of the first input lead and an inner lead of the second input lead is equal to or less than an inter-center distance between an outer lead of the first input lead and an outer lead of the second input lead. |
| 主权项 |
1. An optical coupler, comprising:
an optical transmitting unit that includes:
a first die-pad portion on a power lead,a light emitting element disposed on the first die-pad portion,a second die-pad portion on a ground lead,a first input lead between the power lead and the ground lead,a second input lead between the power lead and the ground lead, andan integrated circuit on the second die-pad portion and having a power pad portion, a light emitting element pad portion, a first input pad portion, and a second input pad portion thereon; and an optical receiving unit in a facing arrangement with the optical transmitting unit, wherein the power lead, the first input lead, the second input lead, and the ground lead each have an outer lead portion and an inner lead portion, the inner lead portions being within a resin encapsulating the optical transmitting unit and the optical receiving unit, the outer lead portions extending in a first direction from the resin and spaced apart from each other in a second direction crossing the first direction, and an inter-center distance between the inner lead portion of the first input lead and the inner lead portion of the second input lead in the second direction is equal to or less than an inter-center distance between the outer lead portion of the first input lead and the outer lead of portion the second input lead in the second direction. |
