JP2003131085A - Bidirectional light transmitting device - Google Patents

Bidirectional light transmitting device

Info

Publication number
JP2003131085A
JP2003131085A JP2001328422A JP2001328422A JP2003131085A JP 2003131085 A JP2003131085 A JP 2003131085A JP 2001328422 A JP2001328422 A JP 2001328422A JP 2001328422 A JP2001328422 A JP 2001328422A JP 2003131085 A JP2003131085 A JP 2003131085A
Authority
JP
Japan
Prior art keywords
light
optical
optical transmission
transmission module
sealing resin
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2001328422A
Other languages
Japanese (ja)
Other versions
JP3797915B2 (en
Inventor
Kazuhiro Kobayashi
和裕 小林
Yuichiro Tanda
祐一郎 反田
Yasuaki Kayanuma
安昭 萱沼
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Citizen Electronics Co Ltd
Original Assignee
Citizen Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Citizen Electronics Co Ltd filed Critical Citizen Electronics Co Ltd
Priority to JP2001328422A priority Critical patent/JP3797915B2/en
Publication of JP2003131085A publication Critical patent/JP2003131085A/en
Application granted granted Critical
Publication of JP3797915B2 publication Critical patent/JP3797915B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Led Device Packages (AREA)
  • Led Devices (AREA)
  • Photo Coupler, Interrupter, Optical-To-Optical Conversion Devices (AREA)
  • Optical Couplings Of Light Guides (AREA)

Abstract

PROBLEM TO BE SOLVED: To solve such a problem that it is difficult to make a light transmitting device small in size because a light sending and a receiving device are mutually separated and use tow optical fibers. SOLUTION: An LED 7 of LD and a light receiving IC 12 are mounted in a base substrate 16 having a through-hole electrode 17. A convex lens 9a right above LED 7 or LD is sealed with a translucent sealing resin 9 so that a concave lens 9b is located right above IC 12. After the sealing resin 9 is divided into a light emitting device 20 and a light receiving device 21 by dicing so as to be divided half, and the whole face of the sealing resin 9 excluding lenses 9a and 9b is covered with an optical intervention preventing protection membrane 18, both devices 20 and 31 are combined with the divided faces facing each other and jointed and fixed with an adhesive 22. It helps to provide a one-core two-way light transmitting device which can be miniaturized and is surface-mountable and at a low cost.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】本発明は、光ファイバプラグ
を光ミニジャック又は光伝送モジュールに係合して通信
可能となる双方向光伝送デバイスに係わり、更に詳しく
は、一芯の光ファイバを使って光信号をデータ伝送する
一芯双方向光伝送デバイスに関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bidirectional optical transmission device capable of communicating by engaging an optical fiber plug with an optical minijack or an optical transmission module, and more specifically, to a single-core optical fiber. The present invention relates to a single-core bidirectional optical transmission device for transmitting optical signals as data.

【0002】[0002]

【従来の技術】近年、発光デバイスと受光デバイスをハ
ウジング内に組み合わせたミニジャックやトランシーバ
型モジュールが存在している。ミニジャックモジュール
はCDプレーヤ、MDプレーヤ、ノート型PCなど、ま
た、トランシーバ型モジュールはルーター、モデムステ
ーション、ノート型PCなどの家電機器に使用されてい
る。現在市場にあるこれらの光伝送モジュールは、光フ
ァイバを1本使用し、発光デバイスと受光デバイスを対
面させた一芯片方向通信や、光ファイバを2本使用し、
送受信モジュールが別個(2個)の二芯双方向通信の構
造のものがあり、いずれも大型でリードフレーム型であ
る。小型で、且つ面実装型の一芯双方向光伝送モジュー
ルは見当たらない。
2. Description of the Related Art In recent years, there have been minijacks and transceiver type modules in which a light emitting device and a light receiving device are combined in a housing. Minijack modules are used in CD players, MD players, notebook PCs, etc., and transceiver modules are used in home appliances such as routers, modem stations, notebook PCs, and the like. These optical transmission modules currently on the market use one optical fiber, one-core one-way communication with a light emitting device and a light receiving device facing each other, and two optical fibers.
There is a two-core bidirectional communication structure with separate (two) transmission / reception modules, both of which are large and lead frame type. No small-sized, surface-mount type, one-core bidirectional optical transmission module is found.

【0003】図5及び図6は、従来の一般的な二芯の双
方向光伝送モジュールの構造を示し、図5は双方向光伝
送モジュールの要部断面図である。図6は図5の矢印A
方向からの説明図である。
FIGS. 5 and 6 show the structure of a conventional general two-core bidirectional optical transmission module, and FIG. 5 is a cross-sectional view of an essential part of the bidirectional optical transmission module. FIG. 6 shows an arrow A in FIG.
It is explanatory drawing from a direction.

【0004】図5及び図6において、符号1は光ファイ
バプラグで、光ファイバプラグ1は、ハウジング部に2
本の光ファイバ2a、2bが収納されている。
In FIGS. 5 and 6, reference numeral 1 is an optical fiber plug, and the optical fiber plug 1 has a housing part 2
Book optical fibers 2a and 2b are stored.

【0005】符号3は光伝送モジュールで、該光伝送モ
ジュール3は、ハウジング4の内部に発光チップを実装
した発光デバイス5と、受光チップを実装した受光デバ
イス10とを単一のハウジング4により一体化してい
る。前記発光デバイス5は、3本のリードフレーム6
(6a、6b、6c)(図7)の表面に発光チップとし
て発光ダイオード(LED)7又はレーザー(LD)
と、LED7又はLDを制御するためのドライブIC8
を実装し、リードフレーム6a、6b、6cとの導通を
ワイヤで行っている。前記LED7又はLD、IC8及
びワイヤを透光性の封止樹脂9で封止されている。
Reference numeral 3 denotes an optical transmission module. In the optical transmission module 3, a light emitting device 5 in which a light emitting chip is mounted inside a housing 4 and a light receiving device 10 in which a light receiving chip is mounted are integrated by a single housing 4. It has become. The light emitting device 5 includes three lead frames 6
Light emitting diode (LED) 7 or laser (LD) as a light emitting chip on the surface of (6a, 6b, 6c) (FIG. 7)
And a drive IC 8 for controlling the LED 7 or LD
Are mounted, and electrical continuity with the lead frames 6a, 6b, 6c is achieved by wires. The LED 7 or LD, the IC 8 and the wire are sealed with a transparent sealing resin 9.

【0006】受光デバイス10は、3本のリードフレー
ム11(11a、11b、11c)(図7)の表面に光
信号を電気信号に変換する機能を有するホトダイオード
(PDi)と増幅回路を一体化したIC12を実装し、
リードフレーム11a、11b、11cとの導通をワイ
ヤで行っている。前記IC12及びワイヤを透光性の封
止樹脂9で封止されている。
The light receiving device 10 has a photodiode (PDi) having a function of converting an optical signal into an electric signal and an amplifier circuit integrated on the surface of three lead frames 11 (11a, 11b, 11c) (FIG. 7). IC12 is mounted,
Wires are used to connect to the lead frames 11a, 11b, 11c. The IC 12 and the wires are sealed with a translucent sealing resin 9.

【0007】前記発光側の3本のリードフレーム6a、
6b、6c及び受光側の3本のリードフレーム11a、
11b、11cは、共に同一平面に並列配置されてい
て、ハウジング4の下面から下方に突出している。
The three lead frames 6a on the light emitting side,
6b, 6c and three lead frames 11a on the light receiving side,
Both 11b and 11c are arranged in parallel on the same plane and project downward from the lower surface of the housing 4.

【0008】前記発光側の3本のリードフレーム6a、
6b、6cのうち、リードフレーム6aは信号入力端
子、リードフレーム6bは電源端子、リードフレーム6
cは接地端子である。また、受光側の3本のリードフレ
ーム11a、11b、11cのうち、リードフレーム1
1aは電源端子、リードフレーム11bは接地端子、リ
ードフレーム11cは信号出力端子である。
The three lead frames 6a on the light emitting side,
Of 6b and 6c, the lead frame 6a is a signal input terminal, the lead frame 6b is a power supply terminal, and the lead frame 6
c is a ground terminal. Also, of the three lead frames 11a, 11b, 11c on the light receiving side, the lead frame 1
Reference numeral 1a is a power supply terminal, lead frame 11b is a ground terminal, and lead frame 11c is a signal output terminal.

【0009】以上述べた構成により、発光デバイス5側
のリードフレーム6aに電気信号を入力し発光デバイス
5内のIC8・LED7により光信号に変換される。L
ED7から出射された光は、光ファイバプラグ1の光フ
ァイバ2aに入射され伝送される。次に、光ファイバ2
bより伝送された光は、受光デバイス10内のIC12
の受光部に入射され電気信号に変換されてリードフレー
ム11cに出力される。
With the configuration described above, an electric signal is input to the lead frame 6a on the light emitting device 5 side and converted into an optical signal by the IC 8 and LED 7 in the light emitting device 5. L
The light emitted from the ED 7 enters the optical fiber 2a of the optical fiber plug 1 and is transmitted. Next, the optical fiber 2
The light transmitted from b is the IC 12 in the light receiving device 10.
The light is incident on the light receiving portion of, and converted into an electric signal and output to the lead frame 11c.

【0010】[0010]

【発明が解決しようとする課題】しかしながら、前述し
た双方向光伝送デバイスは、2本の光ファイバを使用し
ているのでコストアップになる。また、光送信/受信デ
バイスが別個であり光伝送デバイスの小型化が難しい。
更に、光送信/受信デバイスはリードフレームを使用し
た挿入実装部品であるため実装工数が多くかかるなどの
様々な問題がある。
However, the bidirectional optical transmission device described above uses two optical fibers, which increases the cost. Further, since the optical transmission / reception device is separate, it is difficult to miniaturize the optical transmission device.
Furthermore, since the optical transmission / reception device is an insertion mounting component using a lead frame, there are various problems such as a large number of mounting steps.

【0011】本発明は上記従来の課題に鑑みなされたも
のであり、その目的は、光送信/受信デバイスを一体化
すると同時に、凹凸レンズと光干渉保護膜、又は凹凸レ
ンズ付き光干渉保護カバーにより、光干渉を防ぎ光入出
力が効率良く伝送でき、一芯双方向光伝送を可能にす
る。面実装タイプによりリフロー対応可能にし、小型で
安価な双方向光伝送デバイスを提供するものである。
The present invention has been made in view of the above conventional problems, and an object thereof is to integrate an optical transmission / reception device and at the same time to provide an uneven lens and an optical interference protection film or an optical interference protection cover with an uneven lens. , Optical interference can be prevented and optical input / output can be efficiently transmitted, enabling single-core bidirectional optical transmission. It is a surface mount type device that is compatible with reflow and provides a small-sized and inexpensive bidirectional optical transmission device.

【0012】[0012]

【課題を解決するための手段】上記目的を達成するため
に、本発明における双方向光伝送デバイスは、発光チッ
プ及び受光チップを実装し単一のハウジングにより一体
化し、外部との電気的接続のための電極端子を備えた光
ミニジャック又は光伝送モジュールと、該光ミニジャッ
ク又は光伝送モジュールに光ファイバプラグを係合した
双方向光伝送デバイスにおいて、前記光ミニジャック又
は光伝送モジュールは、前記外部との電気的接続のため
の電極端子であるスルーホール電極を有する一つのベー
ス基板に発光チップ及び受光チップを実装し、発光チッ
プの略真上に半球形状の凸レンズ部が、受光チップの略
真上に半球形状の凹レンズ部が位置するように透光性の
封止樹脂で封止し、該封止樹脂を半分に分割するように
ダイシングして発光デバイスと受光デバイスに区分し、
前記半球状の凸レンズ部及び凹レンズ部を除き、前記分
割面を含む封止樹脂の全面をメッキして光干渉防止保護
膜で覆った後、前記発光デバイスと受光デバイスを分割
面で組み合わせ接着剤などにより一体的に固定した送受
信デバイスを備えた光ミニジャック又は光伝送モジュー
ルに、一芯の光ファイバプラグを係合したことを特徴と
するものである。
In order to achieve the above object, a bidirectional optical transmission device according to the present invention mounts a light emitting chip and a light receiving chip and integrates them by a single housing for electrical connection with the outside. An optical mini-jack or an optical transmission module having an electrode terminal for and a bidirectional optical transmission device in which an optical fiber plug is engaged with the optical mini-jack or the optical transmission module, wherein the optical mini-jack or the optical transmission module is A light emitting chip and a light receiving chip are mounted on one base substrate having a through hole electrode which is an electrode terminal for electrical connection to the outside, and a hemispherical convex lens portion is formed almost directly above the light emitting chip. It is sealed with a translucent sealing resin so that the hemispherical concave lens portion is located directly above, and the sealing resin is diced so as to be divided in half. Divided into the device and the light-receiving device,
Except for the hemispherical convex lens portion and concave lens portion, the entire surface of the sealing resin including the split surface is plated and covered with a light interference preventing protective film, and then the light emitting device and the light receiving device are combined on the split surface to form an adhesive. The one-core optical fiber plug is engaged with the optical minijack or the optical transmission module provided with the transmission / reception device integrally fixed by.

【0013】また、発光チップ及び受光チップを実装し
単一のハウジングにより一体化し、外部との電気的接続
のための電極端子を備えた光ミニジャック又は光伝送モ
ジュールと、該光ミニジャック又は光伝送モジュールに
光ファイバプラグを係合した双方向光伝送デバイスにお
いて、前記光ミニジャック又は光伝送モジュールは、前
記外部との電気的接続のための電極端子であるスルーホ
ール電極を有する一つのベース基板に発光チップ及び受
光チップを実装し、該発光チップの略真上に半球形状の
凸レンズ部が、受光チップの略真上に半球形状の凹レン
ズ部が位置するように透光性の封止樹脂で封止し、該封
止樹脂をベース基板の上面に達するハーフダイシングを
行い発光デバイスと受光デバイスとに区分するダイシン
グ溝を形成し、前記封止樹脂の半球形状の凸レンズ部及
び凹レンズ部を除き、前記ダイシング溝を含む封止樹脂
の全面を光干渉防止保護膜を施した送受信デバイスを備
えた光ミニジャック又は光伝送モジュールに、一芯の光
ファイバプラグを係合したことを特徴とするものであ
る。
Further, an optical minijack or an optical transmission module having a light-emitting chip and a light-receiving chip mounted and integrated by a single housing and provided with electrode terminals for electrical connection with the outside, and the optical minijack or optical transmission module. In a bidirectional optical transmission device in which an optical fiber plug is engaged with a transmission module, the optical minijack or the optical transmission module has one base substrate having a through-hole electrode which is an electrode terminal for electrical connection with the outside. A light-emitting chip and a light-receiving chip are mounted on a light-transmitting sealing resin so that a hemispherical convex lens portion is positioned substantially directly above the light-emitting chip and a hemispherical concave lens portion is positioned substantially directly above the light-receiving chip. Sealing is performed and half-dicing of the sealing resin to reach the upper surface of the base substrate is performed to form a dicing groove for dividing a light emitting device and a light receiving device. An optical minijack or optical transmission module equipped with a transmission / reception device in which the entire surface of the encapsulating resin including the dicing groove is covered with a protective film for preventing optical interference except for the convex lens part and the concave lens part of the encapsulating resin, which has a single core. It is characterized in that the optical fiber plug is engaged.

【0014】[0014]

【発明の実施の形態】以下、図面に基づいて本発明にお
ける双方向光伝送デバイスについて説明する。図1〜図
3は、本発明の第1の実施の形態である双方向光伝送デ
バイスに係わり、図1は、一芯双方向光伝送デバイスの
要部断面図、図2は、送受信デバイスの斜視図、図3は
送受信デバイスの断面図である。図において、従来技術
と同一部材は同一符号で示す。
BEST MODE FOR CARRYING OUT THE INVENTION A bidirectional optical transmission device according to the present invention will be described below with reference to the drawings. 1 to 3 relate to a bidirectional optical transmission device according to a first embodiment of the present invention. FIG. 1 is a cross-sectional view of a main part of a one-core bidirectional optical transmission device, and FIG. 2 is a transmission / reception device. FIG. 3 is a perspective view and FIG. 3 is a cross-sectional view of the transmitting / receiving device. In the drawings, the same members as those in the conventional technique are designated by the same reference numerals.

【0015】図1において、光ファイバプラグ1Aはハ
ウジング部に一芯の、例えばプラスチック材よりなる光
ファイバ2が内蔵されている。一方、光伝送モジュール
3Aのハウジング4の内部には、後述する略直方体形状
をした発光デバイスと受光デバイスを接着剤で一体化し
た送受信デバイス15が収納されていて、光ファイバ2
の先端面と光素子の前面側とは可能な限り近接して配置
される。
In FIG. 1, an optical fiber plug 1A has a single-core optical fiber 2 made of, for example, a plastic material, built in a housing portion. On the other hand, inside the housing 4 of the optical transmission module 3A, a transmission / reception device 15 in which a light-emitting device and a light-receiving device each having a substantially rectangular parallelepiped shape, which will be described later, are integrated with an adhesive is housed.
And the front surface of the optical element are arranged as close to each other as possible.

【0016】図1〜図3において、ガラエポ樹脂又はセ
ラミックなどよりなるベース基板16の側面に、外部と
の電気的接続のための電極端子である複数個の半円形状
をしたスルーホール電極17が形成されている。ベース
基板16の上面側には、発光チップとして発光ダイオー
ド(LED)7又はレーザー(LD)と、その素子を制
御するためのドライブIC8と、受光チップとしてホト
ダイオード(PDi)とICが一体化になって光信号を
電気信号に変換する機能を有するIC12を実装されて
いる。前記両チップはベース基板16に形成された上面
電極との導通をワイヤで行っている。
1 to 3, a plurality of semicircular through-hole electrodes 17, which are electrode terminals for electrical connection with the outside, are provided on the side surface of a base substrate 16 made of glass epoxy resin or ceramic. Has been formed. On the upper surface side of the base substrate 16, a light emitting diode (LED) 7 or a laser (LD) as a light emitting chip, a drive IC 8 for controlling the element, and a photodiode (PDi) and an IC as a light receiving chip are integrated. An IC 12 having a function of converting an optical signal into an electric signal is mounted. The chips are electrically connected to the upper surface electrode formed on the base substrate 16 by wires.

【0017】前記ベース基板16上に実装されたLED
7又はレーザー(LD)、IC8及びIC12とワイヤ
を透光性の封止樹脂9で封止する。該封止樹脂9の封止
形状は、略直方体形状をしており、LED7の略真上に
半球形状の凸レンズ部9aが、IC12の略真上に半球
形状の凹レンズ部9bが位置するように封止されてい
る。
LED mounted on the base substrate 16
7 or laser (LD), IC8 and IC12, and the wire are sealed with a transparent sealing resin 9. The sealing resin 9 has a substantially rectangular parallelepiped shape so that a hemispherical convex lens portion 9a is located substantially directly above the LED 7 and a hemispherical concave lens portion 9b is located substantially directly above the IC 12. It is sealed.

【0018】前記略直方体形状に形成された封止樹脂9
を半分に分割するようにダイシングして発光デバイス2
0と受光デバイス21に区分する。
Sealing resin 9 formed in the above-mentioned substantially rectangular parallelepiped shape
Light emitting device 2
0 and the light receiving device 21.

【0019】前記区分された発光デバイス20及び受光
デバイス21において、前記凸レンズ部9a面及び凹レ
ンズ部9b面を除く封止樹脂9の全面を金属メッキ、例
えば、ニッケルメッキなどを行い光干渉防止保護膜18
を施す。前記凸レンズ部9a面には光伝送路19Aを、
凹レンズ部9b面には光伝送路19Bが形成されて、発
光デバイス20及び受光デバイス21が構成される。
In the divided light emitting device 20 and light receiving device 21, the entire surface of the sealing resin 9 excluding the convex lens portion 9a surface and the concave lens portion 9b surface is metal-plated, for example, nickel-plated to prevent light interference. 18
Give. An optical transmission line 19A is provided on the surface of the convex lens portion 9a,
An optical transmission line 19B is formed on the surface of the concave lens portion 9b to form a light emitting device 20 and a light receiving device 21.

【0020】前記発光デバイス20と受光デバイス21
を前記分割面で組み合わせ、接着剤22などにより一体
的に固定して送受信デバイス15を構成する。
The light emitting device 20 and the light receiving device 21.
Are combined on the above-mentioned divided surfaces and are integrally fixed by an adhesive 22 or the like to form the transmitting / receiving device 15.

【0021】以上述べた構成の送受信デバイス15は、
透光性の封止樹脂9で凹凸レンズを成形して効率良い光
の集光を行う。同時に、発光デバイス20と受光デバイ
ス21との外壁に金属系の光干渉防止保護膜18を施
し、受発光部間の光干渉を防ぐ。また、2つのデバイス
を接着剤22で一体化することにより、小型で1芯双方
向で光伝送が可能になる。また、ベース基板16に形成
されたスルーホール電極17が面実装を可能にしリフロ
ー対応が可能になる。
The transmission / reception device 15 having the above-mentioned configuration is
The concavo-convex lens is molded with the translucent sealing resin 9 to efficiently collect light. At the same time, a metallic optical interference prevention protective film 18 is provided on the outer walls of the light emitting device 20 and the light receiving device 21 to prevent optical interference between the light receiving and emitting parts. In addition, by integrating the two devices with the adhesive 22, it is possible to make the optical transmission small in size and bidirectionally with one core. In addition, the through-hole electrode 17 formed on the base substrate 16 enables surface mounting, and enables reflow.

【0022】図4は、本発明の第2の実施の形態である
双方向光伝送デバイスに係わる送受信デバイスの断面図
である。図4に示すように、ガラエポ樹脂又はセラミッ
クなどよりなる一つのベース基板16の側面に、外部と
の電気的接続のための電極端子である複数個の半円形状
をした図示しないスルーホール電極が形成されている。
前記ベース基板16の上面側には、後述する発光チップ
及び受光チップが実装される。
FIG. 4 is a sectional view of a transmitting / receiving device relating to a bidirectional optical transmission device according to a second embodiment of the present invention. As shown in FIG. 4, a plurality of semicircular through-hole electrodes (not shown), which are electrode terminals for electrical connection with the outside, are formed on the side surface of one base substrate 16 made of glass epoxy resin or ceramic. Has been formed.
A light emitting chip and a light receiving chip, which will be described later, are mounted on the upper surface side of the base substrate 16.

【0023】前記のベース基板16の上面には、略中心
より一方の側に発光チップとして発光ダイオード(LE
D)7又はレーザー(LD)と、その素子を制御するた
めのドライブIC8を実装する。ベース基板16に形成
された上面電極との導通をワイヤで行っている。前記ベ
ース基板16の他方の側に受光チップとして受光IC1
2を実装する。ベース基板16に形成された上面電極と
の導通をワイヤで行っている。前記両素子の上面を透光
性の封止樹脂9で封止する。
On the upper surface of the base substrate 16, a light emitting diode (LE) as a light emitting chip is provided on one side from substantially the center.
D) 7 or laser (LD) and a drive IC 8 for controlling the element are mounted. A wire is used to establish continuity with the upper surface electrode formed on the base substrate 16. A light-receiving IC 1 as a light-receiving chip on the other side of the base substrate 16.
Implement 2. A wire is used to establish continuity with the upper surface electrode formed on the base substrate 16. The upper surfaces of both elements are sealed with a light-transmitting sealing resin 9.

【0024】前記封止樹脂9の形状は、上記した第1の
実施の形態と同様に、略直方体形状をしており、その上
面でLED7の略真上に半球形状の凸レンズ部9aを、
受光IC12の略真上に半球形状の凹レンズ部9bが形
成されている。前記封止樹脂9を略半分に分割するよう
に、ベース基板16の上面に達するハーフダイシングを
行いダイシング溝23を形成し、該ダイシング溝23に
より発光デバイス20と受光デバイス21に区分され
る。
The sealing resin 9 has a substantially rectangular parallelepiped shape as in the first embodiment, and a hemispherical convex lens portion 9a is formed on the upper surface of the sealing resin 9 just above the LED 7.
A hemispherical concave lens portion 9b is formed substantially directly above the light receiving IC 12. Half dicing is performed so as to reach the upper surface of the base substrate 16 so as to divide the sealing resin 9 into approximately half to form a dicing groove 23, and the dicing groove 23 divides the light emitting device 20 and the light receiving device 21.

【0025】前記凸レンズ部9aと凹レンズ部9bの面
を除き、ダイシング溝23の面を含む封止樹脂9の全面
を金属メッキ、例えば、ニッケルメッキなどを行い光干
渉防止保護膜18を施す。前記凸レンズ9a及び凹レン
ズ部9bの面には光伝送路19A及び19Bが形成さ
れ、送受信デバイス15Aを構成する。
Except the surfaces of the convex lens portion 9a and the concave lens portion 9b, the entire surface of the sealing resin 9 including the surface of the dicing groove 23 is metal-plated, for example, nickel-plated, and a light interference preventing protective film 18 is applied. Optical transmission paths 19A and 19B are formed on the surfaces of the convex lens 9a and the concave lens portion 9b to form a transmitting / receiving device 15A.

【0026】以上述べた構成の送受信デバイス15A
は、前述した第1の実施の形態と同様に、樹脂成形した
凹凸レンズが効率良い光の集光を行い、光干渉防止保護
膜18が受発光部間の光干渉を防ぐ。また、2つのデバ
イスが一体化しており小型で1芯双方向で光伝送が可能
になる。また、スルーホール電極が面実装を可能にしリ
フロー対応が可能になる。
The transmitting / receiving device 15A having the above-mentioned configuration
In the same manner as in the above-described first embodiment, the resin-molded concavo-convex lens efficiently collects light, and the light interference prevention protective film 18 prevents light interference between the light receiving and emitting portions. In addition, the two devices are integrated and small in size, and optical transmission is possible in one core bidirectionally. In addition, the through-hole electrodes can be surface-mounted to allow reflow.

【0027】[0027]

【発明の効果】以上説明したように、光送信/受信デバ
イスを一体化すると同時に、凹凸レンズ及び受発光部間
に設けた金属系の光干渉防止保護膜が光干渉を防ぎ、ス
ムーズな送受信伝達を行うことができる。また、面実装
タイプにより、リフロー対応可能にし、小型で安価な一
芯双方向光伝送デバイスを提供することができる。
As described above, the optical transmission / reception device is integrated, and at the same time, the metal-based optical interference prevention protective film provided between the concave-convex lens and the light emitting / receiving portion prevents optical interference, and allows smooth transmission / reception transmission. It can be performed. In addition, the surface mounting type makes it possible to provide reflow compatible, small-sized, inexpensive one-core bidirectional optical transmission device.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の第1の実施の形態を係わる一芯双方向
光伝送デバイスの要部断面図である。
FIG. 1 is a cross-sectional view of essential parts of a one-core bidirectional optical transmission device according to a first embodiment of the present invention.

【図2】図1の送受信デバイスの斜視図である。FIG. 2 is a perspective view of the transmission / reception device of FIG.

【図3】図2の送受信デバイスの断面図である。3 is a cross-sectional view of the transmission / reception device of FIG.

【図4】本発明の第2の実施の形態を係わる送受信デバ
イスの断面図である。
FIG. 4 is a sectional view of a transmission / reception device according to a second embodiment of the present invention.

【図5】従来の二芯双方向光伝送モジュールの構造を示
す要部断面図である。
FIG. 5 is a sectional view of an essential part showing the structure of a conventional two-core bidirectional optical transmission module.

【図6】図6に矢印A方向からの説明図である。6 is an explanatory view from the direction of arrow A in FIG.

【符号の説明】[Explanation of symbols]

1A 光ファイバプラグ 2 光ファイバ 3A 光伝送モジュール 4 ハウジング 7 LED(又はLD) 8 IC 9 封止樹脂 9a 凸レンズ部 9b 凹レンズ部 12 IC(受光) 15、15A、15B 送受信デバイス 16 ベース基板 17 スルーホール電極 18 光干渉防止保護膜 19A、19B 光伝送路 20 発光デバイス 21 受光デバイス 22 接着剤 23 ダイシング溝 1A optical fiber plug 2 optical fiber 3A optical transmission module 4 housing 7 LED (or LD) 8 IC 9 Sealing resin 9a Convex lens part 9b concave lens part 12 IC (light receiving) 15, 15A, 15B Transceiver device 16 base substrate 17 Through-hole electrode 18 Optical interference prevention protective film 19A, 19B Optical transmission line 20 Light emitting device 21 Light receiving device 22 Adhesive 23 Dicing groove

───────────────────────────────────────────────────── フロントページの続き (72)発明者 萱沼 安昭 山梨県富士吉田市上暮地1丁目23番1号 株式会社シチズン電子内 Fターム(参考) 2H037 AA01 BA02 BA11 CA08 DA03 DA04 DA15 DA31 5F089 AA01 AC11 AC30 CA20 GA01   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Yasuaki Kayonuma             Yamanashi Prefecture Fujiyoshida City Kamigure 1-23-1             Citizen Electronics Co., Ltd. F term (reference) 2H037 AA01 BA02 BA11 CA08 DA03                       DA04 DA15 DA31                 5F089 AA01 AC11 AC30 CA20 GA01

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 発光チップ及び受光チップを実装し単一
のハウジングにより一体化し、外部との電気的接続のた
めの電極端子を備えた光ミニジャック又は光伝送モジュ
ールと、該光ミニジャック又は光伝送モジュールに光フ
ァイバプラグを係合した双方向光伝送デバイスにおい
て、前記光ミニジャック又は光伝送モジュールは、前記
外部との電気的接続のための電極端子であるスルーホー
ル電極を有する一つのベース基板に発光チップ及び受光
チップを実装し、発光チップの略真上に半球形状の凸レ
ンズ部が、受光チップの略真上に半球形状の凹レンズ部
が位置するように透光性の封止樹脂で封止し、該封止樹
脂を半分に分割するようにダイシングして発光デバイス
と受光デバイスに区分し、前記半球状の凸レンズ部及び
凹レンズ部を除き、前記分割面を含む封止樹脂の全面を
メッキして光干渉防止保護膜で覆った後、前記発光デバ
イスと受光デバイスを分割面で組み合わせ接着剤などに
より一体的に固定した送受信デバイスを備えた光ミニジ
ャック又は光伝送モジュールに、一芯の光ファイバプラ
グを係合したことを特徴とする双方向光伝送デバイス。
1. An optical minijack or an optical transmission module having a light-emitting chip and a light-receiving chip mounted and integrated in a single housing and provided with electrode terminals for electrical connection to the outside, and the optical minijack or optical. In a bidirectional optical transmission device in which an optical fiber plug is engaged with a transmission module, the optical minijack or the optical transmission module has one base substrate having through-hole electrodes which are electrode terminals for electrical connection with the outside. Mount the light-emitting chip and the light-receiving chip on, and seal with a translucent sealing resin so that the hemispherical convex lens part is located almost directly above the light-emitting chip and the hemispherical concave lens part is located almost directly above the light-receiving chip. Then, the sealing resin is diced so as to be divided into halves to divide into a light emitting device and a light receiving device, and the hemispherical convex lens portion and concave lens portion are removed, After the entire surface of the encapsulation resin including the dividing surface is plated and covered with a light interference prevention protective film, the light emitting device and the light receiving device are combined on the dividing surface and combined with an adhesive, etc. A bidirectional optical transmission device, wherein a single-core optical fiber plug is engaged with a minijack or an optical transmission module.
【請求項2】 発光チップ及び受光チップを実装し単一
のハウジングにより一体化し、外部との電気的接続のた
めの電極端子を備えた光ミニジャック又は光伝送モジュ
ールと、該光ミニジャック又は光伝送モジュールに光フ
ァイバプラグを係合した双方向光伝送デバイスにおい
て、前記光ミニジャック又は光伝送モジュールは、前記
外部との電気的接続のための電極端子であるスルーホー
ル電極を有する一つのベース基板に発光チップ及び受光
チップを実装し、該発光チップの略真上に半球形状の凸
レンズ部が、受光チップの略真上に半球形状の凹レンズ
部が位置するように透光性の封止樹脂で封止し、該封止
樹脂をベース基板の上面に達するハーフダイシングを行
い発光デバイスと受光デバイスとに区分するダイシング
溝を形成し、前記封止樹脂の半球形状の凸レンズ部及び
凹レンズ部を除き、前記ダイシング溝を含む封止樹脂の
全面を光干渉防止保護膜を施した送受信デバイスを備え
た光ミニジャック又は光伝送モジュールに、一芯の光フ
ァイバプラグを係合したことを特徴とする双方向光伝送
デバイス。
2. An optical minijack or an optical transmission module, which mounts a light emitting chip and a light receiving chip, is integrated by a single housing, and is provided with an electrode terminal for electrical connection with the outside, and the optical minijack or the optical transmission module. In a bidirectional optical transmission device in which an optical fiber plug is engaged with a transmission module, the optical minijack or the optical transmission module has one base substrate having a through-hole electrode which is an electrode terminal for electrical connection with the outside. A light-emitting chip and a light-receiving chip are mounted on a light-transmitting sealing resin so that a hemispherical convex lens portion is positioned substantially directly above the light-emitting chip and a hemispherical concave lens portion is positioned substantially directly above the light-receiving chip. The sealing resin is half-diced to reach the upper surface of the base substrate to form a dicing groove that divides the light emitting device and the light receiving device, and the sealing is performed. Except for the convex lens portion and concave lens portion of the resin hemisphere shape, the entire surface of the sealing resin including the dicing groove is provided with a transmission / reception device with a protective film for preventing optical interference, to an optical minijack or optical transmission module A bidirectional optical transmission device characterized by engaging a fiber plug.
JP2001328422A 2001-10-25 2001-10-25 Bi-directional optical transmission device Expired - Fee Related JP3797915B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001328422A JP3797915B2 (en) 2001-10-25 2001-10-25 Bi-directional optical transmission device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001328422A JP3797915B2 (en) 2001-10-25 2001-10-25 Bi-directional optical transmission device

Publications (2)

Publication Number Publication Date
JP2003131085A true JP2003131085A (en) 2003-05-08
JP3797915B2 JP3797915B2 (en) 2006-07-19

Family

ID=19144486

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
JP (1) JP3797915B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7026654B2 (en) * 2002-04-05 2006-04-11 Canon Kabushiki Kaisha Package for optical semiconductor
WO2009028159A1 (en) * 2007-08-24 2009-03-05 Yazaki Corporation Housing-integrated optical semiconductor component and manufacturing method thereof
WO2010113912A1 (en) * 2009-03-30 2010-10-07 株式会社オートネットワーク技術研究所 Optical communication module
JP2015072446A (en) * 2013-09-05 2015-04-16 株式会社リコー Display device and display system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7026654B2 (en) * 2002-04-05 2006-04-11 Canon Kabushiki Kaisha Package for optical semiconductor
WO2009028159A1 (en) * 2007-08-24 2009-03-05 Yazaki Corporation Housing-integrated optical semiconductor component and manufacturing method thereof
US8602661B2 (en) 2007-08-24 2013-12-10 Yazaki Corporation Housing-integrated optical semiconductor component and manufacturing method thereof
WO2010113912A1 (en) * 2009-03-30 2010-10-07 株式会社オートネットワーク技術研究所 Optical communication module
JP2015072446A (en) * 2013-09-05 2015-04-16 株式会社リコー Display device and display system

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