Patent ID: 6870259

Claim:
An optical fiber terminator package including: a) a semiconductor chip having a top surface and a bottom surface and including a first optical device which can emit or receive electromagnetic radiation, the first optical device residing on or in the top surface; and b) a first hollow cap including: (1) a central portion and first perimeter walls extending from a perimeter edge of the central portion with free edges of the first perimeter walls bonded to the top surface to provide a first cavity; (2) the central portion overlying at least part or all of the first optical device: (3) a first region of the central portion which is substantially transparent or translucent to the electromagnetic radiation; and (4) first attachment means for attaching a first electromagnetic radiation transmitting fiber to the first hollow cap; c) a second hollow cap bonded to the bottom surface of the semiconductor chip; wherein the first hollow cap has been bonded to the semiconductor chip at the wafer stage prior to separation of the wafer into individual packages.