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A housing accommodating a semiconductor chip is set out. The housing and chip may be used for sending and/or receiving radiation. Popular applications of the housing may be in light emitting diodes. The housing includes a conductor strip that is punched into two electrically isolated portions. The h

A housing accommodating a semiconductor chip is set out. The housing and chip may be used for sending and/or receiving radiation. Popular applications of the housing may be in light emitting diodes. The housing includes a conductor strip that is punched into two electrically isolated portions. The housing further includes a cavity extending inwards from the top of the housing. The conductor portions include respective areas that are exposed at the bottom of the cavity. The semiconductor chip is bonded to one of the exposed areas and a wire bonds the chip to the second exposed area. The conductor portions also terminate in exposed electrodes, which allow for electrical connection of the chip with external devices. A window is formed in the cavity and the walls of the housing that form the cavity may be made of a reflective material. The electrodes remain unexposed to the window but for any residual areas about the chip and bonding wire within the first and second exposed areas. By minimizing the area of the conductor exposed to the window, delamination brought about by the different thermal expansions of the window and conductor are minimized and/or eliminated. Likewise, with a reflective housing covering the base of the cavity that accommodates the window, internal radiation reflection is increased over that which was achieved with an exposed conductor.

대표청구항 ▼

1. An apparatus for sending or receiving radiation, comprising: a housing having a top portion and a base, said top portion including walls defining an opening with an open top and a closed bottom; a conductor accommodated within said base, said conductor having two electrically isolated portion

1. An apparatus for sending or receiving radiation, comprising: a housing having a top portion and a base, said top portion including walls defining an opening with an open top and a closed bottom; a conductor accommodated within said base, said conductor having two electrically isolated portions, a first portion having a first end terminating in a first electrode external to said base and a second end having a first open area exposed along said closed bottom such that said first portion is substantially surrounded by said housing but for said first open area and said first electrode, and a second portion having a third end terminating in a second electrode external to said base and a fourth end having a second open area exposed along said closed bottom such that said second portion is substantially surrounded by said housing but for said second open area and said second electrode, said housing having a bottom wall between said closed bottom and said second end but for said first open area and between said closed bottom and said fourth end but for said second open area; a semiconductor chip bonded to said first open area such that said semiconductor chip is positioned within said opening and said first open area is limited in area by said housing to substantially only accommodate said semiconductor chip; a wire having a first end bonded to said semiconductor chip and a second end bonded to said second open area such that said wire is positioned within said opening and said second open area is limited by said housing to substantially only accommodate said wire bond; and a window for sending or receiving radiation formed by said opening. 2. The apparatus according to claim 1, wherein said first and second open area is the only part of said first and second conductor portions that is exposed within said cavity. 3. The apparatus according to claim 1, wherein said first and second conductor portions are coplanar. 4. The apparatus according to claim 1, wherein said first and second conductor portions are in a first plane and said first and second open area are in a second plane. 5. The apparatus according to claim 1, wherein said housing is made of a reflective material wherein at least said closed bottom is reflective of said radiation. 6. The apparatus according to claim 5, wherein said reflective material includes a diffuse reflective degree of at least 80%. 7. The apparatus according to claim 1, wherein said electrodes wrap around a portion of said base.