Optical semiconductor device with convergent lens

Details Optical semiconductor device with convergent lens Optical semiconductor device with convergent lens

1999-10-22

2001-09-11

Mack, Ricky (Department: 2873)

Optical: systems and elements

Lens

Combined with diverse art tool, instrument or machine

C257S684000

Reexamination Certificate

active

06288851

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an optical semiconductor device having a convergent lens.
2. Discussion of Background
FIG. 4
is a cross-sectional view of a conventional semiconductor device. In
FIG. 4
, numerical reference
1
designates a convergent lens; numerical reference
2
designates a semiconductor element; numerical reference
3
designates an electrode of the semiconductor element; numerical reference
4
designates a wire for connecting the electrode
3
of the semiconductor element to an outer terminal
5
; and numerical reference
6
designates a hollow package accommodating the above-mentioned constitutional elements.
Because the conventional semiconductor device having the convergent lens is formed as illustrated in
FIG. 4
, miniaturization thereof is difficult because of the following features:
(1) the outer terminal
5
is provided on a side surface of the hollow package
6
;
(2) the hollow package
6
is used; and
(3) the wire
4
is used to connect the electrode
3
of the semiconductor element
2
with the outer terminal
5
.
SUMMARY OF THE INVENTION
The present invention is provided to solve the above-mentioned problems inherent in the conventional technique and to provide a miniaturized low-cost optical semiconductor device having a convergent lens.
According to a first aspect of the present invention, there is provided an optical semiconductor device comprising: a convergent lens, a wiring pattern formed on a lower surface of the convergent lens, wherein the wiring pattern has an opening for converging a light, and a semiconductor element, which is directly and electrically connected with a lower surface of the wiring pattern so that the semiconductor element is electrically connected to an outside.
According to a second aspect of the present invention, there is provided an optical semiconductor device comprising: a convergent lens, a wiring board attached to a lower surface of the convergent lens, and a semiconductor element, which is directly and electrically connected to a back surface of the wiring board so that the semiconductor element is electrically connected to an outside.
According to a third aspect of the present invention, there is provided the optical semiconductor device, wherein the wiring board is fabricated by multi layers; and another semiconductor element is equipped on the multi-layer wiring board.


REFERENCES:
patent: 5523608 (1996-06-01), Kitaoka et al.
patent: 8-327448 (1996-12-01), None
patent: 9-113352 (1997-05-01), None
patent: 10-242519 (1998-09-01), None

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