US4768070A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optoelectronics device
Assignee: Opnext Japan Inc
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Filing: 1987-02-17
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Granted: 1988-08-30
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Expires: 2007-02-17
Abstract
Abstract An optoelectronics device wherein a light-receiving element which defines a monitor light receiver and a semiconductor laser which generates a laser beam are hermetically sealed in the same package, and wherein the light-receiving surface of the element for measuring the output power of the beam of light emitted from the semiconductor laser is disposed so as to be inclined with respect to the light-emitting surface of the semiconductor laser. The wire bonding surface of the light-receiving element pellet-bonded to a stem and the wire bonding surface of the lead electrically connected to the light-receiving element through a wire are arranged so as to be parallel with each other. Thus, it is possible to support both the bonding surfaces horizontally at the same time. As a result, a bonding tool can be brought into perpendicular contact with each of the bonding surfaces, and this enables appropriate wire bonding to be effected.
Inventors
- 👤 Yasushi Takizawa
- 👤 Atsushi Sasayama
- 👤 Yoshihiko Kobayashi
- 👤 Yukio Takahashi
- 👤 Yuuji Kakegawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:40
CPC Classifications
H; H01; H01S; H01S5/00; H01S5/02; H01S5/022; H01S5/023; H01S5/02325; H01S5/02326; H01S5/02208; H01S5/02212; H01S5/06; H01S5/068; H01S5/0683; H10; H10W; H10W72/00; H10W72/071; H10W72/0711; H10W72/07141; H10W72/075; H10W72/07521; H10W72/50; H10W72/531; H10W72/536; H10W72/5363; H10W72/90; H10W72/931
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
181 words
In an optoelectronics device having a stem, a light-receiving element which serves as a monitor light receiver, and a semiconductor laser having a light emitting surface parallel with a surface of the stem which generates a laser beam, said light-receiving element having a light-receiving surface inclined at an acute angle with respect to the light-emitting surface of said semiconductor laser and the surface of the stem for measuring an output power of a beam of light emitted from said semiconductor laser, the improvement comprising a bonding surface of said light-receiving element inclined at the acute angle relative to the surface of the stem, and a lead extending through the stem and having at an end thereof a bonding surface adapted to be electrically connected to said light-receiving element, wherein said bonding surface of said light-receiving element and the bonding surface of the lead are parallel with each other and at the acute angle to the surface of the stem so that a bonding tool can be brought into perpendicular contact with both bonding surfaces and a wire to be bonded thereto.
Claim 2
Dependent Claim
181 words
In an optoelectronics device having a stem, a light-receiving element which serves as a monitor light receiver, and a semiconductor laser having a light emitting surface parallel with a surface of the stem which generates a laser beam, said light-receiving element having a light-receiving surface inclined at an acute angle with respect to the light-emitting surface of said semiconductor laser and the surface of the stem for measuring an output power of a beam of light emitted from said semiconductor laser, the improvement comprising a bonding surface of said light-receiving element inclined at the acute angle relative to the surface of the stem, and a lead extending through the stem and having at an end thereof a bonding surface adapted to be electrically connected to said light-receiving element, wherein said bonding surface of said light-receiving element and the bonding surface of the lead are parallel with each other and at the acute angle to the surface of the stem so that a bonding tool can be brought into perpendicular contact with both bonding surfaces and a wire to be bonded thereto.
Claim 3
Dependent Claim
25 words
An optoelectronics device according to claim 1, wherein the bonding surface of said lead is a conical portion formed at the end of said lead.
Claim 4
Dependent Claim
26 words
An optoelectronics device according to claim 1, wherein the bonding surface of said lead is a circular cone portion formed at the end of said lead.
Claim 5
Dependent Claim
25 words
An optoelectronics device according to claim 1, wherein the bonding surface of said lead is a pyramidal portion formed at the end of said lead.
Claim 6
Dependent Claim
25 words
An optoelectronics device according to claim 1, wherein the bonding surface of said lead is a frusto-conical portion formed at the end of said lead.
Claim 7
Dependent Claim
136 words
In an optoelectronics device having a stem, a light-receiving element which serves as a monitor light receiver, and a semiconductor laser having a light-emitting surface parallel with a surface of the stem for generating a laser beam, the improvement comprising a bonding surface of said light-receiving element inclined at an acute angle relative to the surface of the stem, and a lead extending through the stem and having at an thereof a bonding surface adapted to be electrically connected to said light-receiving element, wherein said bonding surface of said light-receiving element and the bonding surface of the lead are parallel with each other and at the acute angle to the surface of the stem so that a bonding tool can be brought into perpendicular contact with both bonding surfaces and a wire to be bonded thereto.
Claim 8
Dependent Claim
136 words
In an optoelectronics device having a stem, a light-receiving element which serves as a monitor light receiver, and a semiconductor laser having a light-emitting surface parallel with a surface of the stem for generating a laser beam, the improvement comprising a bonding surface of said light-receiving element inclined at an acute angle relative to the surface of the stem, and a lead extending through the stem and having at an thereof a bonding surface adapted to be electrically connected to said light-receiving element, wherein said bonding surface of said light-receiving element and the bonding surface of the lead are parallel with each other and at the acute angle to the surface of the stem so that a bonding tool can be brought into perpendicular contact with both bonding surfaces and a wire to be bonded thereto.
Claim 9
Dependent Claim
25 words
An optoelectronics device according to claim 6, wherein the bonding surface of said lead is a conical portion formed at the end of said lead.
Claim 10
Dependent Claim
100 words
In an optoelectronics device having a stem, an auto power control mechanism provided with a monitor light receiver mounted on the stem, the improvement comprising a bonding surface of said light receiver, and a lead extending through the stem and having at an end thereof a bonding surface adapted to be electrically connected to said light receiver, wherein said bonding surfaces are arranged parallel with each other and at an acute angle to a surface of the stem so that a bonding tool can be brought into perpendicular contact with said bonding surfaces and a wire to be bonded thereto.
Claim 11
Dependent Claim
100 words
In an optoelectronics device having a stem, an auto power control mechanism provided with a monitor light receiver mounted on the stem, the improvement comprising a bonding surface of said light receiver, and a lead extending through the stem and having at an end thereof a bonding surface adapted to be electrically connected to said light receiver, wherein said bonding surfaces are arranged parallel with each other and at an acute angle to a surface of the stem so that a bonding tool can be brought into perpendicular contact with said bonding surfaces and a wire to be bonded thereto.
Claim 12
Dependent Claim
25 words
An optoelectronics device according to claim 8, wherein the bonding surface of said lead is a conical portion formed at the end of said lead.
Claim 13
Dependent Claim
63 words
An optoelectronics device comprising a stem, a light-receiving element mounted at an acute angle to a surface of the stem, a lead adapted to be electrically connected to the light-receiving element, said lead and said light-receiving element having bonding surfaces arranged parallel with each other and at the acute angle to the surface of the stem upon which the light-receiving element is mounted.
Claim 14
Dependent Claim
63 words
An optoelectronics device comprising a stem, a light-receiving element mounted at an acute angle to a surface of the stem, a lead adapted to be electrically connected to the light-receiving element, said lead and said light-receiving element having bonding surfaces arranged parallel with each other and at the acute angle to the surface of the stem upon which the light-receiving element is mounted.
Claim 15
Dependent Claim
25 words
An optoelectronics device according to claim 10, wherein the bonding surface of said lead is a conical portion formed at the end of said lead.
Claim 16
Dependent Claim
18 words
An optoelectronics device according to claim 11, wherein said conical portion has the shape of a circular cone.
Claim 17
Dependent Claim
15 words
An optoelectronics device according to claim 11, wherein said conical portion has a pyramidal shape.
Claim 18
Dependent Claim
15 words
An optoelectronics device according to claim 11, wherein said conical portion has a frusto-conical shape.
Claim 19
Dependent Claim
102 words
In an optoelectronics device having a stem, a light-emitting element, a light-receiving element mounted at an acute angle on a surface of the stem for receiving light emitted from said light-emitting element, a first lead associated with the stem and electronically connected to said light-emitting element, and a second lead associated with the stem and electrically connected to said light-receiving element, said light-emitting and light-receiving elements having respective bonding surfaces, the improvement comprising the bonding surface of said second lead being arranged parallel with wire bonding surface of said light-receiving element and at the acute angle to the surface of the stem.
Claim 20
Dependent Claim
102 words
In an optoelectronics device having a stem, a light-emitting element, a light-receiving element mounted at an acute angle on a surface of the stem for receiving light emitted from said light-emitting element, a first lead associated with the stem and electronically connected to said light-emitting element, and a second lead associated with the stem and electrically connected to said light-receiving element, said light-emitting and light-receiving elements having respective bonding surfaces, the improvement comprising the bonding surface of said second lead being arranged parallel with wire bonding surface of said light-receiving element and at the acute angle to the surface of the stem.
Claim 21
Dependent Claim
74 words
An optoelectronics device comprising a stem, a light-receiving element arranged at an acute angle relative to a surface of the stem, a lead having a longitudinal axis and an end surface to which an electrical connection to the light-receiving element is to be bonded, said end surface being parallel with a bonding surface of said light-receiving element and constituting a surface portion which is slanted with respect to the longitudinal axis of said lead.
Claim 22
Dependent Claim
74 words
An optoelectronics device comprising a stem, a light-receiving element arranged at an acute angle relative to a surface of the stem, a lead having a longitudinal axis and an end surface to which an electrical connection to the light-receiving element is to be bonded, said end surface being parallel with a bonding surface of said light-receiving element and constituting a surface portion which is slanted with respect to the longitudinal axis of said lead.
Claim 23
Dependent Claim
74 words
An optoelectronics device comprising, a stem, a light-receiving element arranged at an acute angle relative to a surface of the stem, a lead having a longitudinal axis and an end surface to which an electric connection to the light-receiving element is to e bonded, said end surface being parallel with a bonding surface of said light-receiving element and constituting a slant surface portion which is formed by bending an end portion of said lead.
Claim 24
Dependent Claim
74 words
An optoelectronics device comprising, a stem, a light-receiving element arranged at an acute angle relative to a surface of the stem, a lead having a longitudinal axis and an end surface to which an electric connection to the light-receiving element is to e bonded, said end surface being parallel with a bonding surface of said light-receiving element and constituting a slant surface portion which is formed by bending an end portion of said lead.
Claim 25
Dependent Claim
94 words
An optoelectronics device comprising a stem, a light-emitting element, a light-receiving element for receiving the light emitted from said light-emitting element arranged at an acute angle to a surface of the stem, a first lead electrically connected to said light-emitting element, and a second lead having a longitudinal axis and electrically connected to said light-receiving element, said light-emitting and light-receiving elements having respective bonding surfaces, and said second lead having an end surface which intersects the longitudinal axis of said second lead and which is parallel with the bonding surface of said light-receiving element.
Claim 26
Dependent Claim
94 words
An optoelectronics device comprising a stem, a light-emitting element, a light-receiving element for receiving the light emitted from said light-emitting element arranged at an acute angle to a surface of the stem, a first lead electrically connected to said light-emitting element, and a second lead having a longitudinal axis and electrically connected to said light-receiving element, said light-emitting and light-receiving elements having respective bonding surfaces, and said second lead having an end surface which intersects the longitudinal axis of said second lead and which is parallel with the bonding surface of said light-receiving element.
Claim 27
Dependent Claim
19 words
An optoelectronics device according to claim 18, wherein said end surface of said second lead has a circular cross-section.
Claim 28
Dependent Claim
19 words
An optoelectronics device according to claim 18, wherein said end surface of said second lead has an elliptical cross-section.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-08-30 | 1992-02-29 | 1992-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-08-30 | 1996-02-29 | 1996-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-08-30 | 2000-02-29 | 2000-08-30 | $7700.00 | Window Closed / Lapsed |