WO2005076372A1 - 光通信モジュール - Google Patents
光通信モジュール Download PDFInfo
- Publication number
- WO2005076372A1 WO2005076372A1 PCT/JP2005/001676 JP2005001676W WO2005076372A1 WO 2005076372 A1 WO2005076372 A1 WO 2005076372A1 JP 2005001676 W JP2005001676 W JP 2005001676W WO 2005076372 A1 WO2005076372 A1 WO 2005076372A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- light
- communication module
- lens
- inclined surface
- optical communication
- 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.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F55/00—Radiation-sensitive semiconductor devices covered by groups H10F10/00, H10F19/00 or H10F30/00 being structurally associated with electric light sources and electrically or optically coupled thereto
- H10F55/20—Radiation-sensitive semiconductor devices covered by groups H10F10/00, H10F19/00 or H10F30/00 being structurally associated with electric light sources and electrically or optically coupled thereto wherein the electric light source controls the radiation-sensitive semiconductor devices, e.g. optocouplers
- H10F55/25—Radiation-sensitive semiconductor devices covered by groups H10F10/00, H10F19/00 or H10F30/00 being structurally associated with electric light sources and electrically or optically coupled thereto wherein the electric light source controls the radiation-sensitive semiconductor devices, e.g. optocouplers wherein the radiation-sensitive devices and the electric light source are all semiconductor devices
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W90/00—Package configurations
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W90/00—Package configurations
- H10W90/701—Package configurations characterised by the relative positions of pads or connectors relative to package parts
- H10W90/751—Package configurations characterised by the relative positions of pads or connectors relative to package parts of bond wires
- H10W90/754—Package configurations characterised by the relative positions of pads or connectors relative to package parts of bond wires between a chip and a stacked insulating package substrate, interposer or RDL
Definitions
- the present invention relates to an optical communication module such as an infrared communication module.
- FIG. 8 shows an example of a conventional infrared communication module.
- the illustrated infrared communication module X has a configuration in which an LED 92 that emits infrared light, a photodiode 93 that can receive and sense infrared light, and an IC chip 94 that controls these are mounted on a substrate 91. .
- the LED 92, the photodiode 93, and the IC chip 94 are sealed with a sealing resin 95.
- the sealing resin 95 is formed with two convex lenses 95a and 95b.
- the lens 95a enhances the directivity of the light emitted from the LED 92, and efficiently emits the light toward the data transmission destination.
- the lens 95b focuses the traveling light on the light receiving surface of the photodiode 93.
- the infrared communication module X When the infrared communication module X is used by being incorporated in a housing of a mobile phone, the infrared communication module X is mounted, for example, such that the lenses 95a and 95b are exposed through opening windows provided in the housing. From the viewpoint of reducing the thickness of the mobile phone and increasing the variety of designs, it is desirable that the opening window be as small as possible. For this reason, it is necessary to prevent the lenses 95a and 95b from becoming large and bulky. Therefore, in the infrared communication module X, parts of the lenses 95a and 95b are in contact with each other.
- the infrared communication module X described above has the following problems.
- the lenses 95a and 95b are miniaturized by contacting a part of each other. As the distance between the centers of the lenses 95a and 95b becomes shorter, the area through which the infrared rays are transmitted becomes smaller. For this reason, the function of the lenses 95a and 95b as lenses may be reduced, and communication performance such as infrared transmission performance and infrared light reception sensitivity may be reduced.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2001-168376 (FIG. 1)
- the present invention has been conceived under the circumstances described above, and has as its object to increase the degree of freedom in designing an optical communication module without causing a problem such as a decrease in communication performance. I have.
- the present invention takes the following technical measures.
- An optical communication module provided by the present invention has a substrate, a light emitting element and a light receiving element mounted on the substrate, and has a property of transmitting light emitted from the light emitting element; And an encapsulating resin for covering the light receiving element, wherein the encapsulating resin is provided with a lens located in front of the light emitting element, wherein the optical communication module comprises: The sealing resin is inclined with respect to each of a first direction in which the light emitting element and the light receiving element are arranged and a second direction from the light emitting element to the lens, and is adjacent to the lens. An inclined surface is further formed, and light refracted through the inclined surface is received by the light receiving element. [0012] Preferably, the inclined surface is inclined such that a portion that moves away from the lens in the first direction is closer to the substrate.
- the whole or a part of the inclined surface is a convex curved surface when viewed in the first direction.
- the inclined surface is inclined such that a portion that is farther away from the lens in the first direction is located closer to the substrate than the substrate.
- the lens protrudes in a direction away from the inclined surface by the substrate force.
- an infrared communication module is configured by using an element capable of emitting and receiving infrared light as the light emitting element and the light receiving element.
- FIG. 1 is an overall perspective view of an example of an infrared communication module according to the present invention.
- FIG. 2 is a sectional view taken along the line II-II of FIG. 1.
- FIG. 3 is an overall perspective view of another example of the infrared communication module according to the present invention.
- FIG. 4 is a sectional view taken along a line IV-IV in FIG. 3.
- FIG. 5 is an overall perspective view of another example of the infrared communication module according to the present invention.
- FIG. 6 is an overall perspective view of another example of the infrared communication module according to the present invention.
- FIG. 7 is a sectional view taken along line VII-VII of FIG. 6.
- FIG. 8 is an overall perspective view of another example of the infrared communication module according to the present invention.
- FIG. 9 is a cross-sectional view showing one example of a conventional technique.
- FIG. 1 and FIG. 2 show an example of the infrared communication module according to the present invention.
- the infrared communication module A1 of the present embodiment is mounted on, for example, a mobile phone (not shown), It is used for data communication between mobile phones or between a mobile phone and a device other than the mobile phone, such as a personal computer.
- the infrared communication module A 1 includes a substrate 1, an LED 2, a photodiode 3, an IC chip 4, and a sealing resin 5.
- the X direction, the y direction, and the z direction shown in the drawings are directions orthogonal to each other.
- the X direction and the z direction correspond to the first and second directions in the present invention, respectively.
- the substrate 1 has a rectangular shape in a plan view and is formed of an insulator such as a glass epoxy resin.
- the LED 2 is an example of the light emitting element according to the present invention, and can emit infrared light.
- LED 2 is mounted near one end of substrate 1.
- a configuration including a reflector surrounding the LED 2 may be employed.
- a concave portion is formed in the substrate 1, and an LED 2 is provided on the bottom surface of the concave portion.
- the inward side surface of the recess serves as the reflector. According to such a configuration, light from the LED D2 can be more effectively utilized.
- the photodiode 3 is an example of a light receiving element according to the present invention, and has a light receiving section 3a.
- the photodiode 3 is configured such that, when infrared light is received by the light receiving section 3a, a current corresponding to the infrared light can flow by a photovoltaic effect.
- the photodiode 3 is located near the center of the substrate 1 in the X direction, and is mounted alongside the LED 2.
- the IC chip 4 causes the LED 2 to emit light in accordance with a signal to be transmitted, or converts a current as large as a photodiode 3 into an output signal and outputs the output signal to a control device mounted on the mobile phone. Things.
- the IC chip 4 is mounted on the substrate 1 near the other end opposite to the LED 2.
- the sealing resin 5 is formed by a transfer molding method using, for example, an epoxy resin containing a pigment, and seals the LED 2, the photodiode 3, and the IC chip 4.
- the sealing resin 5 has a property of not transmitting visible light but transmitting infrared light sufficiently well.
- a lens 5a and an inclined surface 5b are formed above the sealing resin 5.
- the lens 5a is formed in front of the LED 2 in the z direction, and bulges upward in the figure.
- the lens 5a is for increasing the directivity of the infrared light emitted from the LED2.
- the surface 5b is located above the photodiode 3 in the figure, and is formed in a planar shape connected to the lens 5a.
- the inclined surface 5b is inclined so that the height from the substrate 1 decreases as the distance from the LED 2 increases in the X direction.
- the center of the LED 2 is substantially coincident with the central axis C of the lens 5a.
- the center of the photodiode 3 is offset closer to the LED 2 than the center axis C5b of the inclined surface 5b.
- the infrared communication module A1 As shown in FIG. 2, light directed to the inclined surface 5b from above in the figure is refracted toward the LED 2 by transmitting through the inclined surface 5b.
- the photodiode 3 is mounted close to the LED 2 to appropriately receive the refracted light. Thereby, it is possible to prevent a useless space from being generated between the photodiode 3 and the LED 2. Therefore, the size of the substrate 1 in the X direction can be reduced, and the size of the infrared communication module 1 can be reduced. In addition, it is possible to increase the space between the photodiode 3 and the IC chip 4 in the substrate 1, and to provide another electronic component, for example.
- the lens 5a 5b Can be larger. If the distance between these centers is small, the area of the lens 5a and the inclined surface 5b will be small. In such a case, the amount of infrared rays received by the photodiode 3 via the inclined surface 5b is reduced, and the light receiving sensitivity of the photodiode 3 is reduced. Alternatively, the light-collecting effect of the lens 5a is insufficient, and the directivity of the infrared light emitted from the LED 2 is insufficient. In contrast, in the infrared communication module A1, such an inconvenience can be appropriately solved by increasing the areas of the inclined surface 5b and the lens 5a.
- the inclined surface 5b is formed so as not to be bulky in the thickness direction of the substrate 1 as compared with the lens 5a whose uppermost portion is lower than the uppermost portion of the lens 5a.
- the infrared communication module A1 the volume of the sealing resin 5 is reduced and the overall size is reduced, for example, as compared with the conventional technology in which two lenses similar to the lens 5a are formed side by side.
- FIG. 3 to FIG. 7 show another example of the infrared communication module according to the present invention.
- the same or similar elements as those in the above embodiment are denoted by the same reference numerals as those in the above embodiment.
- the inclined surface 5b is viewed in the x direction! / Formed on a convex curved surface that swells upward! RU
- the inclined surface 5b functions as a lens that collects infrared rays in the y direction. Therefore, it is more preferable to increase the amount of infrared rays received by the photodiode 3 and increase the light receiving sensitivity of the photodiode 3.
- the inclined surface 5b has a function as a lens, instead of forming the entire inclined surface 5b as a convex curved surface, forming only a part of the inclined surface 5b as a convex curved surface does not cause a problem. .
- the inclined surface 5b is not linearly inclined when viewed in the y direction, but is curvedly inclined. Similarly to the infrared communication module A2 described above, the inclined surface 5b is a convex curved surface bulging upward when viewed in the X direction.
- the inclined surface 5b is inclined so that the portion farther from the lens 5a in the x direction has a higher height from the substrate 1 in the x direction. That is, in the present embodiment, the inclination direction of the inclined surface 5b is opposite to that of the infrared communication module A1 shown in FIG. 1 and FIG.
- the distance between the photodiode 3 and the LED 2 can be increased.
- a blocking wall is formed between photodiode 3 and LED2 to block infrared light.
- the formation of the blocking wall is facilitated.
- the lens 5a and the inclined surface 5b can be set to appropriate sizes. Note that, in the present embodiment, as in the embodiment shown in FIGS. 3 to 5, the inclined surface 5b may be formed into a convex curved surface, similarly to the embodiment shown in FIGS. .
- optical communication module according to the present invention is not limited to the above-described embodiment, and the specific configuration of each part can be variously changed in design.
- the present invention can also be configured as an optical communication module using light having a wavelength different from infrared light. Therefore, the specific types of the light emitting element and the light receiving element, the specific material of the sealing resin, and the like are not limited.
- the optical communication module according to the present invention is not limited to an optical communication module incorporated in a mobile phone, but may be incorporated in various devices such as a personal computer, a PDA (Personal Digital Assistance), and a facsimile apparatus. It is possible and its specific use does not matter.
Landscapes
- Led Device Packages (AREA)
- Light Receiving Elements (AREA)
- Optical Communication System (AREA)
- Photo Coupler, Interrupter, Optical-To-Optical Conversion Devices (AREA)
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/586,956 US20070166050A1 (en) | 2004-02-05 | 2005-02-04 | Optical communication module |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004-029383 | 2004-02-05 | ||
| JP2004029383A JP3857694B2 (ja) | 2004-02-05 | 2004-02-05 | 光通信モジュール |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2005076372A1 true WO2005076372A1 (ja) | 2005-08-18 |
Family
ID=34835947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2005/001676 Ceased WO2005076372A1 (ja) | 2004-02-05 | 2005-02-04 | 光通信モジュール |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20070166050A1 (ja) |
| JP (1) | JP3857694B2 (ja) |
| CN (1) | CN100511725C (ja) |
| TW (1) | TWI257709B (ja) |
| WO (1) | WO2005076372A1 (ja) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4926421B2 (ja) * | 2005-07-25 | 2012-05-09 | ローム株式会社 | 光通信モジュールおよびその製造方法 |
| EP1973166B1 (fr) | 2007-03-21 | 2015-09-09 | EM Microelectronic-Marin SA | Circuit intégré photorécepteur, et composant optoélectronique comprenant le circuit intégré photorécepteur |
| JP5204585B2 (ja) * | 2007-12-13 | 2013-06-05 | パナソニック株式会社 | 発光装置および照明器具 |
| JP2010238751A (ja) * | 2009-03-30 | 2010-10-21 | Autonetworks Technologies Ltd | 光通信モジュール |
| JP4902714B2 (ja) * | 2009-09-30 | 2012-03-21 | シャープ株式会社 | 光ポインティング装置およびそれを備える電子機器、並びに、導光体および導光方法。 |
| US9252874B2 (en) | 2010-10-13 | 2016-02-02 | Ccs Technology, Inc | Power management for remote antenna units in distributed antenna systems |
| US9160449B2 (en) | 2010-10-13 | 2015-10-13 | Ccs Technology, Inc. | Local power management for remote antenna units in distributed antenna systems |
| US11296504B2 (en) | 2010-11-24 | 2022-04-05 | Corning Optical Communications LLC | Power distribution module(s) capable of hot connection and/or disconnection for wireless communication systems, and related power units, components, and methods |
| EP2643947B1 (en) | 2010-11-24 | 2018-09-19 | Corning Optical Communications LLC | Power distribution module(s) capable of hot connection and/or disconnection for distributed antenna systems, and related power units, components, and methods |
| US9154222B2 (en) | 2012-07-31 | 2015-10-06 | Corning Optical Communications LLC | Cooling system control in distributed antenna systems |
| US10257056B2 (en) | 2012-11-28 | 2019-04-09 | Corning Optical Communications LLC | Power management for distributed communication systems, and related components, systems, and methods |
| EP3039814B1 (en) | 2013-08-28 | 2018-02-21 | Corning Optical Communications Wireless Ltd. | Power management for distributed communication systems, and related components, systems, and methods |
| WO2015079435A1 (en) | 2013-11-26 | 2015-06-04 | Corning Optical Communications Wireless Ltd. | Selective activation of communications services on power-up of a remote unit(s) in a distributed antenna system (das) based on power consumption |
| SG10201804924SA (en) * | 2013-12-09 | 2018-07-30 | Heptagon Micro Optics Pte Ltd | Modules having multiple optical channels including optical elements at different heights above the optoelectronic devices |
| US9785175B2 (en) | 2015-03-27 | 2017-10-10 | Corning Optical Communications Wireless, Ltd. | Combining power from electrically isolated power paths for powering remote units in a distributed antenna system(s) (DASs) |
| DE102016103113A1 (de) * | 2016-02-23 | 2017-08-24 | Vishay Semiconductor Gmbh | Optoelektronische Vorrichtung |
| JP7467270B2 (ja) * | 2020-07-31 | 2024-04-15 | シャープセミコンダクターイノベーション株式会社 | 反射型光センサ、および、近接センサ |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10321900A (ja) * | 1997-05-14 | 1998-12-04 | Sumitomo Electric Ind Ltd | 光モジュール |
| JP2000114588A (ja) * | 1998-10-01 | 2000-04-21 | Matsushita Electric Works Ltd | 光伝送素子 |
| JP2000124479A (ja) * | 1998-10-16 | 2000-04-28 | Sanyo Electric Co Ltd | 光半導体装置 |
| JP2001168376A (ja) * | 1999-12-03 | 2001-06-22 | Matsushita Electronics Industry Corp | 赤外線データ通信モジュール |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW594093B (en) * | 1999-10-19 | 2004-06-21 | Terashima Kentaro | Optical transmission and reception system, and optical transmission and reception module and optical cable for the system |
| JP4097949B2 (ja) * | 2001-04-20 | 2008-06-11 | シャープ株式会社 | 空間光伝送システム |
| JP3847618B2 (ja) * | 2001-12-04 | 2006-11-22 | シャープ株式会社 | 双方向光通信モジュール |
-
2004
- 2004-02-05 JP JP2004029383A patent/JP3857694B2/ja not_active Expired - Fee Related
-
2005
- 2005-02-04 US US10/586,956 patent/US20070166050A1/en not_active Abandoned
- 2005-02-04 TW TW094103602A patent/TWI257709B/zh not_active IP Right Cessation
- 2005-02-04 CN CNB2005800042681A patent/CN100511725C/zh not_active Expired - Fee Related
- 2005-02-04 WO PCT/JP2005/001676 patent/WO2005076372A1/ja not_active Ceased
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10321900A (ja) * | 1997-05-14 | 1998-12-04 | Sumitomo Electric Ind Ltd | 光モジュール |
| JP2000114588A (ja) * | 1998-10-01 | 2000-04-21 | Matsushita Electric Works Ltd | 光伝送素子 |
| JP2000124479A (ja) * | 1998-10-16 | 2000-04-28 | Sanyo Electric Co Ltd | 光半導体装置 |
| JP2001168376A (ja) * | 1999-12-03 | 2001-06-22 | Matsushita Electronics Industry Corp | 赤外線データ通信モジュール |
Also Published As
| Publication number | Publication date |
|---|---|
| US20070166050A1 (en) | 2007-07-19 |
| CN100511725C (zh) | 2009-07-08 |
| JP2005223135A (ja) | 2005-08-18 |
| TWI257709B (en) | 2006-07-01 |
| CN1918714A (zh) | 2007-02-21 |
| JP3857694B2 (ja) | 2006-12-13 |
| TW200605380A (en) | 2006-02-01 |
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