WO2013027669A1 - 光半導体装置 - Google Patents
光半導体装置 Download PDFInfo
- Publication number
- WO2013027669A1 WO2013027669A1 PCT/JP2012/070905 JP2012070905W WO2013027669A1 WO 2013027669 A1 WO2013027669 A1 WO 2013027669A1 JP 2012070905 W JP2012070905 W JP 2012070905W WO 2013027669 A1 WO2013027669 A1 WO 2013027669A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- optical semiconductor
- translucent member
- semiconductor device
- surround
- lid
- Prior art date
Links
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Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/02—Containers; Seals
- H01L23/04—Containers; Seals characterised by the shape of the container or parts, e.g. caps, walls
-
- H01L31/0203—
-
- H01L33/483—
-
- H01L33/58—
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/49—Structure, shape, material or disposition of the wire connectors after the connecting process of a plurality of wire connectors
- H01L2224/491—Disposition
- H01L2224/4912—Layout
- H01L2224/49171—Fan-out arrangements
-
- H01L33/486—
Definitions
- the present invention relates to an optical semiconductor device in which an optical semiconductor element, which is an optical element typified by a semiconductor laser, a photodiode, and an optical sensor, is housed.
- an optical semiconductor device can be used as a component of an imaging device.
- an optical semiconductor device on which an optical semiconductor element such as an imaging element is mounted for example, an optical device described in JP-A-2002-94035 is known.
- a light transmission hole is formed in a cap (lid body) constituting the optical device.
- the light transmission hole is closed by a light transmission window (translucent member).
- the inside of a package is sealed at a low pressure in order to prevent the optical semiconductor element from being modified by oxidation or the like. Therefore, external pressure is likely to be applied to the lid, and stress due to the external pressure is concentrated on the connection portion between the lid and the translucent member, which may reduce the bonding property of the lid to the translucent member.
- An object of the present invention is to provide an optical semiconductor device having good bonding properties of the optical semiconductor device to a light-transmissive member of a lid.
- An optical semiconductor device includes a substrate, an optical semiconductor element placed on the upper surface of the substrate, a frame body disposed on the upper surface of the substrate so as to surround the optical semiconductor element, A lid having an opening at a position overlapping with the optical semiconductor element in the vertical direction, and a translucent member bonded to the upper surface of the lid so as to cover the opening; It has.
- the lid body is positioned so as to surround the opening, and a first portion in which the translucent member is bonded to an upper surface; and a second portion positioned so as to surround the first portion; And a third portion which is positioned so as to surround the second portion and has the frame joined to the lower surface.
- the first portion is such that the upper surface of the first portion is positioned below the upper surface of the third portion, and the second portion is positioned so as to surround the first portion.
- a thin portion having a thickness smaller than that of the third portion.
- FIG. 2 is a partial cross-sectional perspective view showing a lid in the optical semiconductor device shown in FIG. 1.
- FIG. 2 is a plan view of the optical semiconductor device shown in FIG. 1.
- FIG. 4 is an XX cross-sectional view of the optical semiconductor device shown in FIG. 3.
- FIG. 5 is an exploded cross-sectional view of the optical semiconductor device shown in FIG. 4.
- FIG. 10 is a plan view showing a first modification of the optical semiconductor device shown in FIG. 1.
- FIG. 7 is a partial cross-sectional perspective view showing a lid in the optical semiconductor device shown in FIG. 6.
- FIG. 6 is a cross-sectional view showing a second modification of the optical semiconductor device shown in FIG. 4.
- FIG. 9 is a partial cross-sectional perspective view showing a lid in the optical semiconductor device shown in FIG. 8.
- FIG. 6 is a cross-sectional view showing a third modification of the optical semiconductor device shown in FIG. 4.
- FIG. 5 is an enlarged sectional view in which a region A of the optical semiconductor device shown in FIG. 4 is enlarged.
- FIG. 5 is an enlarged sectional view in which a region B of the optical semiconductor device shown in FIG. 4 is enlarged.
- the optical semiconductor device 1 of this embodiment includes a substrate 3, an optical semiconductor element 5 placed on the upper surface of the substrate 3, and an upper surface of the substrate 3 so as to surround the optical semiconductor element 5.
- a lid body 9 having an opening 9a at a position where the optical semiconductor element 5 is vertically overlapped, and a lid body 9 so as to cover the opening 9a.
- a translucent member 11 bonded to the upper surface.
- the lid 9 is positioned so as to surround the first portion 13 positioned so as to surround the opening 9 a, the second portion 15 positioned so as to surround the first portion 13, and the second portion 15. And a third portion 17.
- the translucent member 11 is bonded to the upper surface of the first portion 13.
- the frame body 7 is joined to the lower surface of the third portion 17. Further, the upper surface of the first portion 13 is positioned below the upper surface of the third portion 17.
- the 2nd part 15 has the thin part 15a located so that the 1st part 13 might be enclosed.
- the thickness D2 of the thin portion 15a is thinner than the thickness D1 of the first portion 13 and the thickness D3 of the third portion 17.
- the upper surface of the first portion 13 to which the translucent member 11 is bonded is located below the upper surface of the third portion 17. Therefore, the optical semiconductor device 1 can be reduced in height. Furthermore, contact and rubbing on the upper surface of the first portion 13 due to external factors can be suppressed, and generation of scratches and damage on the upper surface of the first portion 13 can be reduced. Further, in the optical semiconductor device 1 of the present embodiment, the second portion 15 has the thin portion 15 a located so as to surround the first portion 13.
- the optical semiconductor device 1 of the present embodiment has the thin portion 15a as described above, the stress is concentrated on the first portion 13 and the third portion 17 by concentrating the stress on the thin portion 15a. This can be suppressed. Further, since the thin portion 15a is easily elastically deformed as compared with a portion having a large thickness in the vertical direction, stress can be absorbed in this portion. Furthermore, an excessive joining member such as solder for joining the translucent member 11 to the upper surface of the first portion 13 can be accumulated on the thin portion 15a. Therefore, it is possible to provide the optical semiconductor device 1 with good bonding properties, airtightness, durability, and assembly accuracy of the lid 9 to the translucent member 11 and the frame 7.
- the substrate 3 in the present embodiment has a quadrangular plate shape and has a mounting area on which the optical semiconductor element 5 is mounted.
- the placement region means a region that overlaps the optical semiconductor element 5 when the substrate 3 is viewed in plan.
- the placement area is formed at the center of the upper surface.
- the substrate 3 of the present embodiment has one placement area, but the substrate 3 has a plurality of placement areas, and the optical semiconductor element 5 is placed in each placement area. Good.
- a square plate-shaped member having a side of about 5 to 20 mm and a thickness of about 0.5 to 2 mm when viewed in plan can be used.
- substrate 3 in this embodiment is a square plate shape, the upper surface does not necessarily need to be flat.
- a concave portion may be provided on the upper surface of the substrate 3 and a part of the bottom surface of the concave portion may be used as a placement region.
- An optical semiconductor element 5 is disposed in the mounting region of the substrate 3.
- the optical semiconductor element 5 is electrically connected to the input / output terminal 19 by a bonding wire 21.
- the optical semiconductor element 5 can input / output signals to / from an external electric circuit (not shown) via the bonding wire 21 and the input / output terminal 19.
- a light emitting element typified by an LD (Laser Diode) element or a light receiving element typified by a PD (Photo Diode) element can be used.
- a light emitting element is used as the optical semiconductor element 5
- an external signal can be output to an external electric circuit by receiving light incident on the inside through the translucent member 11 at the light receiving element. . Therefore, the optical semiconductor element 5 is placed at a position overlapping the opening 9a of the lid 9 in the vertical direction.
- the wiring conductor on which at least the optical semiconductor element 5 is disposed is used as the substrate 3. Except for the part, it is required to have high insulation.
- the substrate 3 in the present embodiment is manufactured by laminating a plurality of insulating members.
- the optical semiconductor element 5 is placed on the placement region of the substrate 3.
- the insulating member include a ceramic material such as an aluminum oxide sintered body, a mullite sintered body, a silicon carbide sintered body, an aluminum nitride sintered body or a silicon nitride sintered body, or a glass ceramic. Materials can be used.
- a mixing member is prepared by mixing raw material powder containing these glass powder and ceramic powder, an organic solvent, and a binder.
- a plurality of ceramic green sheets are produced by forming the mixed member into a sheet.
- a plurality of laminated bodies are produced by laminating the produced ceramic green sheets.
- the substrate 3 is fabricated by integrally firing the plurality of laminated bodies at a temperature of about 1600 degrees.
- the substrate 3 is not limited to the configuration in which a plurality of insulating members are stacked.
- substrate 3 may be comprised by one insulating member.
- the optical semiconductor element 5 may be directly mounted on the upper surface of the substrate 3, but the optical semiconductor element 5 disposed on the mounting region of the substrate 3 as in the optical semiconductor device 1 of the present embodiment. May be provided, and the optical semiconductor element 5 may be mounted on the mounting substrate 23.
- the mounting substrate 23 it is preferable to use a member having good insulation like the insulating member.
- an aluminum oxide sintered body, a mullite sintered body, a silicon carbide sintered body, and an aluminum nitride sintered body are used.
- a ceramic material such as a sintered body or a silicon nitride-based sintered body, or a glass ceramic material can be used.
- the substrate 3 in addition to the insulating member typified above, for example, a resin member such as a silicone resin, an acrylic resin or an epoxy resin, or iron, A metal member such as copper, nickel, chromium, cobalt, or tungsten, or an alloy or composite metal material made of these metals can be used.
- a resin member such as a silicone resin, an acrylic resin or an epoxy resin, or iron
- a metal member such as copper, nickel, chromium, cobalt, or tungsten, or an alloy or composite metal material made of these metals can be used.
- the optical semiconductor device 1 of the present embodiment includes a frame body 7 provided on the upper surface of the substrate 3 so as to surround the mounting region.
- a frame body 7 for example, similarly to the substrate 3, for example, an aluminum oxide sintered body, a mullite sintered body, a silicon carbide sintered body, an aluminum nitride sintered body, or a silicon nitride sintered body is used.
- Such ceramic materials or glass ceramic materials can be used.
- a metal member such as iron, copper, nickel, chromium, cobalt, or tungsten, or an alloy made of these metals can be used.
- the metal member constituting the frame body 7 can be manufactured by subjecting such an ingot of the metal member to a metal processing method such as a rolling method or a punching method.
- the frame body 7 may be composed of one member, but may be a laminated structure of a plurality of members.
- the substrate 3 and the frame body 7 may be joined via a joining member or may be integrally formed.
- a joining member for example, a resin member such as a silicone resin, an acrylic resin, or an epoxy resin, or a brazing material can be used.
- Exemplary brazing materials include silver brazing.
- the lid body 9 is joined to the frame body 7 so as to seal the optical semiconductor element 5.
- the lid body 9 is joined to the upper surface of the frame body 7.
- the optical semiconductor element 5 is sealed in a space surrounded by the substrate 3, the frame body 7, and the lid body 9. By sealing the optical semiconductor element 5 in this way, deterioration of the optical semiconductor element 5 due to the use of the optical semiconductor device 1 for a long period of time can be suppressed.
- a metal member such as iron, copper, nickel, chromium, cobalt, or tungsten, an alloy made of these metals, or a resin member such as silicone resin, acrylic resin, or epoxy resin is used. it can.
- the metal member constituting the lid body 9 can be produced by subjecting such an ingot of the metal member to a metal processing method such as a rolling method or a punching method.
- the resin member which comprises the cover body 9 can be produced by filling the said resin material into a mold and thermosetting it.
- the lid body 9 may be composed of one member, but may have a structure formed by joining a plurality of members.
- the lid body 9 can be joined to the frame body 7 by, for example, a seam welding method.
- the lid 9 may be joined to the frame 7 by welding as described above, but may be joined using, for example, gold-tin solder.
- the lid body 9 in the present embodiment surrounds the first portion 13 positioned so as to surround the opening 9 a, the second portion 15 positioned so as to surround the first portion 13, and the second portion 15. And a third portion 17 positioned as described above.
- the translucent member 11 is bonded to the upper surface of the first portion 13.
- the frame body 7 is joined to the lower surface of the third portion 17. Further, the upper surface of the first portion 13 is positioned below the upper surface of the third portion 17.
- the first portion 13 in the present embodiment means a portion located so as to surround the opening 9a and located immediately below the region joined to the translucent member 11 on the upper surface of the lid 9.
- the third portion 17 in the present embodiment means a portion located immediately above a region joined to the frame body 7 on the lower surface of the lid body 9.
- the second portion 15 means a portion sandwiched between the first portion 13 and the third portion 17 in the lid body 9.
- the upper surface of the first portion 13 to which the translucent member 11 is joined is located below the upper surface of the third portion 17.
- the second portion 15 in the present embodiment has a thin portion 15 a positioned so as to surround the first portion 13.
- the thickness D2 of the thin portion 15a is thinner than the thickness D1 of the first portion 13 and the thickness D3 of the third portion 17. Therefore, stress can be absorbed in the thin portion 15a while reducing the height of the optical semiconductor device 1, so that the bonding property and airtightness of the lid 9 to the translucent member 11 and the frame 7 are good. It becomes possible.
- the stress generated when the lid body 9 is joined to the frame body 7 by seam welding is not directly transmitted from the third portion 17 to the translucent member 11 but is transmitted via the second portion 15. Therefore, since the stress transmitted to the translucent member 11 is relieved by deformation or bending of the second portion 15, the translucent member 11 or the translucent member 11 is generated in the joining member for joining the lid body 9. Breaking, cracking, and peeling can be suppressed, whereby the manufacturing yield and hermeticity of the optical semiconductor device 1 can be improved.
- the opening 9a of the lid body 9 in the present embodiment is formed so that the shape when viewed in plan is circular. Therefore, the 1st part 13 located so that the opening part 9a may be enclosed is an annular part. 6 and 7, the opening 9a may be formed to have a square shape when viewed in plan, but the opening 9a when viewed in plan as shown in FIGS.
- the first portion 13 is an annular portion, the force applied from the translucent member 11 to the lid body 9 is applied to the first portion 13 of the lid body 9. The possibility of concentrating on a part, for example, a corner can be reduced. Therefore, the joining property and airtightness between the translucent member 11 and the lid 9 can be further improved.
- the radius when the shape of the opening 9a is circular, the radius can be about 2 to 10 mm. Further, as an exemplary size of the first portion 13, the thickness D1 can be set to about 0.2 to 1 mm.
- the specific dimensions of the lid 9 shown in FIGS. 6 and 7 are such that the length of the long side of one side of the outer edge when viewed in plan is 44 mm, and the length of the short side of the side of the outer edge when viewed in plan. The length is 18 mm, the length of one side of the opening 9 a when viewed in plan is 33 mm, and the length of the short side of the opening 9 a when viewed in plan is 20 mm.
- the length of the first portion 13 when viewed in plan is 0.3 mm
- the length of the second portion 15 when viewed in plan is 16.7 mm
- the length of the third portion 17 when viewed in plan Is set to 1 mm.
- the vertical length of the first portion 13 is 0.6 mm
- the vertical length of the second portion 15 is 1.05 mm
- the vertical length of the thin portion 15a is 0.25 mm
- the length in the vertical direction of the portion 17 is set to 0.25 mm.
- the second portion 15 in the present embodiment is such that the height of the upper surface at the location adjacent to the third portion 17 is the height of the upper surface at the location adjacent to the first portion 13.
- a step portion is provided so as to be higher than the height.
- the step portion in the present embodiment has a height of the lower surface at a location adjacent to the third portion 17 that is also higher than a height of the lower surface at a location adjacent to the first portion 13. It is formed in a crank shape. Therefore, while reducing the thickness of the entire lid body 9, the position of the translucent member 11 is lowered, that is, the height of the translucent member 11 protruding upward from the upper surface of the third portion 17 is kept low. be able to.
- the concave corner portion C in the crank-shaped portion has a curved surface shape.
- stress tends to concentrate on the concave corners C.
- the corners C are curved as shown in FIG. Can be increased. Therefore, the durability of the lid body 9 can be improved without increasing the thickness of the second portion 15.
- the frame body 7 in the present embodiment has a quadrangular shape having four sides when viewed in plan. Therefore, the 3rd part 17 which is a location joined to the frame 7 in the cover body 9 becomes the shape of the square ring which consists of four sides.
- the first portion 13 is an annular portion
- the third portion 17 is a square ring-shaped portion. Therefore, as for the 2nd part 15 in this embodiment, when planarly viewed, the outer peripheral part is square shape, and the inner peripheral part is circular.
- the thickness D2 of the thin portion 15a can be about 0.1 to 0.4 mm. Further, the thickness of the portion excluding the thin portion 15a can be about 0.2 to 0.5 mm.
- the width W1 of the thin portion 15a on the imaginary line connecting the corner portion of the outer peripheral portion of the third portion 17 and the central portion of the opening portion 9a is equal to each side of the outer peripheral portion of the third portion 17 and the opening portion 9a. It is preferable that it is wider than the width W2 of the thin portion 15a on the imaginary line connecting the central portions of the two.
- the thickness at the step portion means not the thickness in the vertical direction but the thickness in the direction horizontal to the upper surface of the substrate 3.
- the thickness D3 can be set to about 0.2 to 0.5 mm.
- the thickness D2 of the thin portion 15a is preferably 0.1 mm or more thinner than the thickness D1 of the first portion 13 and the thickness D3 of the third portion 17.
- the translucent member 11 is joined to the upper surface of the first portion 13 of the lid body 9 so as to cover the opening 9 a of the lid body 9.
- the translucent member 11 in the present embodiment has a quadrangular plate shape, and its exemplary size is about 3 to 20 mm on one side in plan view and about 0.2 to 2 mm in thickness. It is.
- the translucent member 11 a member that transmits light well so that the optical semiconductor element 5 receives light from the outside or emits light from the optical semiconductor element 5 to the outside is used.
- a glass member or a translucent resin containing silicon as a main component can be used as the translucent member 11.
- a metallized layer (not shown) may be formed on the lower surface of the translucent member 11 at the junction with the lid 9. By forming the metallized layer, the translucent member 11 and the lid 9 can be easily joined.
- the rigidity of the translucent member 11 is preferably higher than the rigidity of the lid body 9.
- the rigidity of the translucent member 11 can be made higher than that of the lid 9. it can.
- the antireflection film 25 is formed on the upper and / or lower surface of the translucent member 11 that overlaps the opening 9 a of the lid 9 in the vertical direction. Is preferably formed.
- the translucent member 11 preferably has an outer shape larger than the opening 9a. Thereby, when the translucent member 11 is joined to the first portion 13, the stress generated in the joint portion is difficult to be transmitted to the outer peripheral end of the translucent member 11 that is likely to be a starting point of cracking or crack generation. The crack and crack of the member 11 can be suppressed and the airtightness of the optical semiconductor device 1 can be maintained.
- the translucent member 11 may be joined to the first portion 13 such that the upper surface is lower than the upper surfaces of the second portion 15 and the third portion 17.
- the translucent member 11 has a form in which the upper surface is surrounded by the upper surfaces of the second portion 15 and the third portion 17, and contact or rubbing against the translucent member 11 due to external factors of the optical semiconductor device 1. Can be suppressed, and scratches and damage to the translucent member 11 can be reduced.
- the translucent member 11 preferably has the same shape as the outer shape of the thin portion 15a. As a result, the distance between the translucent member 11 and the upper surface of the second portion 15 can be reduced. Intrusion of dust, dust or the like into the thin wall portion 15a is suppressed, and appearance defects of the optical semiconductor device 1 are suppressed.
- the height of the translucent member 11 protruding upward from the upper surface of the third portion 17 is kept low, and the semiconductor element 5 receives light from the outside. Or, when light is emitted from the optical semiconductor element 5 to the outside, light input / output between the semiconductor element 5 and the outside of the optical semiconductor device 1 via the translucent member 11 is propagated through the first portion 13.
- the upper surface of the first portion 13 and the upper surface of the second portion 15 adjacent to the first portion 13 may be the same height as shown in FIGS.
- the translucent member from the third portion 17 is such that the upper surface of the first portion 13 is located above the upper surface of the second portion 15 adjacent to the first portion 13. 11 is preferable in that the stress transmitted to 11 is relieved by deformation or bending of the second portion 15.
- the translucent member 11 is bonded to the upper surface of the first portion 13.
- the height position of the upper surface of the translucent member 11 is lower than the height position of the upper surface of the second portion 15 adjacent to the third portion 17. It is preferable that it is set.
- the height position of the upper surface of the translucent member 11 is set to be, for example, 0.25 mm or more lower than the height position of the upper surface of the second portion 15.
- the height position of the upper surface of the translucent member 11 is provided so as to coincide with the height position of the upper surface at a location adjacent to the third portion 17 in the second portion 15. May be.
- the optical semiconductor device 1 is viewed from the side of the inclination of the translucent member 11 with respect to the upper surface of the second portion 15.
- the time and cost associated with the shipping inspection of the optical semiconductor device 1 can be reduced, and dust adhering to the upper surface of the second portion 15 and the upper surface of the translucent member 11 can be reduced. There exists an effect that dust can be collectively cleaned on the same plane.
- the peripheral region surrounding the central region on the lower surface of the translucent member 11 may be formed to be recessed upward from the central region.
- the recess on the lower surface of the translucent member 11 is continuously formed along the outer edge of the lower surface of the translucent member 11.
- the upper surface of the 1st part 13 and the dent of the translucent member 11 are joined.
- the depth of the recess is set to about 0.05 mm to 0.5 mm, for example.
- the thickness of the outer edge of the translucent member 11 can be reduced by providing a recess on the lower surface of the translucent member 11.
- the 1st member 13 is joined to the dent of the translucent member 11, the height position of the upper surface of the translucent member 11 can be made low, and the height reduction of an optical semiconductor device is implement
- the displacement of the translucent member 11 in the parallel direction with respect to the opening 9a can be suppressed by the depression.
- the optical semiconductor element 5 is placed at a position overlapping the opening 9a of the lid 9 in the vertical direction. Therefore, when the upper surface of the first portion 13 is located above the upper surface of the second portion 15 adjacent to the first portion 13, the substrate 3 and the translucent member 11 Since the interval is increased, it is possible to make a large space for a portion where the optical semiconductor element 5 is placed in a space surrounded by the substrate 3, the frame body 7, and the lid body 9. Thereby, the optical semiconductor element 5 can be easily placed on the substrate 3 and the optical semiconductor device 1 can be miniaturized and highly integrated.
- the upper surface of the second portion 15 is separated from the lower surface of the translucent member 11.
- the thin portion 15a in the second portion 15 is intentionally deformed, so that the bonding property and the air tightness of the lid 9 to the translucent member 11 and the frame 7 are good. It ’s a good thing.
- the second portion 15 may be caught by the translucent member 11 and the deformation of the thin portion 15a may be hindered.
- the thin part 15a can be favorably deformed.
- the thin portion 15 a in the second portion 15 is separated from the translucent member 11. Since the second portion 15 is thinner than the other portions, the rigidity is low. Therefore, when the thin portion 15a is in contact with the translucent member 11, not only the deformation of the thin portion 15a is prevented, but an excessively large stress is applied to the thin portion 15a, which may cause damage. However, when the thin-walled portion 15a is separated from the translucent member 11, not only can the thin-walled portion 15a be deformed satisfactorily, but also the possibility that the thin-walled portion 15a is damaged can be reduced.
- the optical semiconductor device 1 of the present embodiment includes a metallized layer disposed on the lower surface of the translucent member 11 so as to surround the opening 9 a at the joint portion with the first portion 13. 29.
- the optical semiconductor device 1 of the present embodiment includes a joining member 31 that joins the metallized layer 29 and the first portion 13.
- the width W5 of the metallized layer 29 is preferably larger than the width W6 of the first portion 13 in a cross section perpendicular to the upper surface of the substrate 3.
- the width W6 of the first portion 13 does not mean the entire outer diameter when the first portion 13 is viewed in plan, but as shown in FIG. It means the difference between the inner and outer diameters.
- the translucent member 11 when the metallized layer 29 is formed, even when the translucent member 11 is slightly misaligned when the translucent member 11 is joined to the lid body 9, it is stable.
- the translucent member 11 can be joined to the lid body 9.
- the inner circumference of the metallized layer 29 is located inside the inner circumference of the first portion 13 and the outer circumference of the metallized layer 29 is located outside the outer circumference of the first portion 13.
- the joining member 31 can be easily joined also to the side surface of the first portion 13 as shown in FIG.
- the bonding member 31 is bonded to the side surface of the first portion 13, not only can the bonding area of the first portion 13 and the bonding member 31 be increased, but the bonding member 31 can be increased from a plurality of directions. 1 is joined to the first portion 13.
- the bonding member 31 is bonded to the upper surface of the first portion 13.
- the translucent member 11 can be stably joined to the first portion 13 by the portion and the portion joined to the side surface of the first portion 13 of the joining member 31.
- the bonding member 31 is bonded to the inner side surface and the outer side surface of the first portion 13, respectively. That is, the first portion 13 is sandwiched between the joining members 31. Therefore, the translucent member 11 can be bonded to the first portion 13 very stably.
- the metal material constituting the metallized layer 29 for example, tungsten, molybdenum, manganese, nickel, copper, silver, or gold can be used.
- a resin member such as a silicone resin, an acrylic resin, or an epoxy resin, or a brazing material can be used.
- Exemplary brazing materials include silver brazing.
- the semiconductor device 1 having the above configuration is used as a component of an electronic device by mounting the substrate 3 on the mounting substrate 27.
- the optical semiconductor device according to the embodiment of the present invention has been described above, but the present invention is not limited to the above-described embodiment. In other words, various modifications and combinations of embodiments may be made without departing from the scope of the present invention.
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Abstract
Description
Claims (7)
- 基板と、
該基板の上面に載置された光半導体素子と、
該光半導体素子を囲むように前記基板の上面に配設された枠体と、
該枠体の上面に接合された、前記光半導体素子と上下に重なり合う位置に開口部を有する蓋体と、
前記開口部を覆うように前記蓋体の上面に接合された透光性部材とを具備した光半導体装置であって、
前記蓋体は、前記開口部を囲むように位置して上面に前記透光性部材が接合された第1の部分と、該第1の部分を囲むように位置した第2の部分と、前記第2の部分を囲むように位置して下面に前記枠体が接合された第3の部分とを備え、
前記第1の部分の上面が前記第3の部分の上面よりも下方に位置しており、前記第2の部分が、前記第1の部分を囲むように位置した、前記第1の部分の厚みよりも厚みが薄く且つ前記第3の部分の厚みよりも厚みが薄い薄肉部を有することを特徴とする光半導体装置。 - 前記第1の部分は、前記開口部を囲むように位置する円環状の部分であることを特徴とする請求項1に記載の光半導体装置。
- 前記第1の部分の上面が前記薄肉部の上面よりも上方に位置していることを特徴とする請求項1または請求項2に記載の光半導体装置。
- 前記透光性部材は四角板形状であって、前記透光性部材は前記第1の部分にのみ接合され、前記薄肉部は前記第1の部分に接続され、前記薄肉部の上面が前記透光性部材の下面から離れていることを特徴とする請求項1ないし請求項3のいずれかに記載の光半導体装置。
- 前記透光性部材の上面の高さ位置は、前記第2の部分における前記第3の部分と隣接する箇所での上面の高さ位置よりも低いことを特徴とする請求項1ないし請求項4のいずれかに記載の光半導体装置。
- 前記透光性部材の上面の高さ位置は、前記第2の部分における前記第3の部分と隣接する箇所での上面の高さ位置と一致するように設けられていることを特徴とする請求項1ないし請求項4のいずれかに記載の光半導体装置。
- 前記透光性部材の下面の中央領域を取り囲む周辺領域は、前記中央領域よりも上方に凹んで形成されており、前記第1の部分が前記透光性部材の凹みに接合されていることを特徴とする請求項1ないし請求項6のいずれかに記載の光半導体装置。
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US14/237,330 US9018747B2 (en) | 2011-08-22 | 2012-08-17 | Optical semiconductor apparatus |
EP12825286.3A EP2750181B1 (en) | 2011-08-22 | 2012-08-17 | Optical semiconductor device |
JP2013529998A JP5528636B2 (ja) | 2011-08-22 | 2012-08-17 | 光半導体装置 |
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US (1) | US9018747B2 (ja) |
EP (1) | EP2750181B1 (ja) |
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US20140197528A1 (en) | 2014-07-17 |
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EP2750181A1 (en) | 2014-07-02 |
EP2750181B1 (en) | 2016-06-01 |
US9018747B2 (en) | 2015-04-28 |
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