WO2022158416A1 - 配線基板、電子部品収容用パッケージ、電子装置及び電子モジュール - Google Patents
配線基板、電子部品収容用パッケージ、電子装置及び電子モジュール Download PDFInfo
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- 239000004020 conductor Substances 0.000 claims abstract description 299
- 239000000758 substrate Substances 0.000 claims abstract description 33
- 239000003989 dielectric material Substances 0.000 claims abstract description 4
- 230000001939 inductive effect Effects 0.000 claims abstract description 4
- 239000002184 metal Substances 0.000 claims description 16
- 230000000694 effects Effects 0.000 description 9
- 238000003780 insertion Methods 0.000 description 9
- 230000037431 insertion Effects 0.000 description 9
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- 230000008054 signal transmission Effects 0.000 description 6
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- 230000005540 biological transmission Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
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- 230000006866 deterioration Effects 0.000 description 1
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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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/12—Mountings, e.g. non-detachable insulating substrates
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P3/00—Waveguides; Transmission lines of the waveguide type
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/16—Printed circuits incorporating printed electric components, e.g. printed resistor, capacitor, inductor
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/46—Manufacturing multilayer circuits
Definitions
- the present disclosure relates to a wiring board, an electronic component housing package, an electronic device, and an electronic module.
- a wiring board provided with a conductor for example, a relay board disclosed in Japanese Patent Application Laid-Open No. 2006-086146. With this configuration, high-frequency signals can be transmitted to the end of the wiring board with low loss.
- the wiring board of the present disclosure is a substrate composed of a dielectric material and having a first surface and a second surface opposite the first surface; a signal conductor located on the first surface and extending to an edge of the substrate; two first ground conductors located on the first surface and extending to the end with the signal conductor interposed therebetween; a second ground conductor located inside the base or on the second surface and extending to the end facing the signal conductor; a connection conductor that electrically connects the first ground conductor and the second ground conductor; has The signal conductor and the second ground conductor are separated by a distance H, One or both of the signal conductor and the first ground conductor have a pattern having inductance at a location that is at least 1 ⁇ 3 of the distance H and less than the distance H from the end.
- the package for housing electronic components of the present disclosure includes: the above wiring board; a metal case capable of housing electronic components; Prepare.
- the electronic device of the present disclosure includes: the electronic component housing package; an electronic component mounted in the electronic component housing package; Prepare.
- Another aspect of the present disclosure provides an electronic device comprising: the above wiring board; an electronic component electrically connected to the wiring board; Prepare.
- the electronic module of the present disclosure includes: the electronic device described above; a module substrate on which the electronic device is mounted; Prepare.
- FIG. 1 is a perspective view showing an electronic component housing package and an electronic device according to an embodiment of the present disclosure
- FIG. 1 is a perspective view showing a wiring board according to an embodiment
- FIG. 1 is a longitudinally cut perspective view of a wiring board according to an embodiment
- FIG. 2 is a diagram showing the essential parts of the wiring board according to the embodiment, and is a perspective view of the essential parts as viewed from below.
- 2 is a perspective view showing a pattern of Reference Form 1.
- FIG. 2 is a perspective view showing a pattern of Embodiment 1; FIG. FIG.
- FIG. 10 is a perspective view showing a pattern of Embodiment 2;
- FIG. 11 is a perspective view showing a pattern of Embodiment 3;
- FIG. 11 is a perspective view showing a pattern of Reference Form 2;
- 4 is a graph showing reflection loss characteristics of Reference Embodiments 1 and 2 and Embodiments 1 to 3.
- FIG. 4 is a graph showing insertion loss characteristics of Reference Embodiments 1 and 2 and Embodiments 1 to 3.
- FIG. FIG. 12 is a perspective view showing a pattern of Embodiment 4;
- FIG. 11 is a perspective view showing a pattern of Embodiment 5;
- FIG. 12 is a perspective view showing a pattern of Embodiment 6;
- 5 is a graph showing reflection loss characteristics of Reference Embodiment 1 and Embodiments 4 to 6.
- FIG. 5 is a graph showing insertion loss characteristics of Reference Embodiment 1 and Embodiments 4 to 6.
- FIG. FIG. 21 is a perspective view showing a pattern of Embodiment 7;
- FIG. 21 is a perspective view showing a pattern of Embodiment 8;
- FIG. 21 is a perspective view showing a pattern of Embodiment 9;
- 10 is a graph showing reflection loss characteristics of Reference Embodiment 1 and Embodiments 7 to 9.
- FIG. 10 is a graph showing insertion loss characteristics of Reference Embodiment 1 and Embodiments 7 to 9.
- FIG. 20 is a perspective view showing a pattern of Embodiment 10;
- FIG. 22 is a perspective view showing a pattern of Embodiment 11;
- FIG. 22 is a perspective view showing a pattern of Embodiment 12;
- FIG. 21 is a perspective view showing a pattern of Embodiment 13;
- 10 is a graph showing reflection loss characteristics of Reference Embodiment 1 and Embodiments 10 to 13.
- FIG. 10 is a graph showing insertion loss characteristics of Reference Embodiment 1 and Embodiments 10 to 13.
- FIG. 1 illustrates an electronic device and an electronic module according to embodiments of the present disclosure;
- FIG. 3 is an exploded perspective view of an electronic device according to another embodiment of the present disclosure;
- FIG. 3 is a cross-sectional view of an electronic device according to another embodiment of the present disclosure;
- FIG. 4 is a plan view of an electronic device according to another embodiment of the present disclosure;
- FIG. 1 is a perspective view showing an electronic component housing package and an electronic device according to an embodiment of the present disclosure.
- the electronic component housing package 1 of the present disclosure includes a metal case 4 having a recess U1, a wiring board 7 and a non-high frequency wiring board 8 incorporated in the metal case 4, and a lid closing the opening of the recess U1. 5.
- the metal case 4 has a wall 4B and a bottom 4C surrounding the recess U1.
- An electronic component 101 is accommodated in the recess U1, and the terminals of the electronic component 101 are electrically connected to the wiring board 7 and the non-high frequency wiring board 8 via bonding wires as connecting members w.
- the metal case 4 has through holes h4a to h4d penetrating the wall 4B.
- the wiring board 7 and the non-high frequency wiring board 8 are embedded in the through holes h4a to h4d so that the through holes h4a to h4d are closed, so that the wiring board 7 and the non-high frequency wiring board 8 are attached to the metal case 4. incorporated.
- the metal case 4 may have a pedestal 4D that supports the wiring board 7 and the non-high frequency wiring board 8 from below outside the wall 4B.
- the pedestal 4D and the bottom 4C may be an integral plate body, and in this configuration, the pedestal 4D may be the outer edge of the bottom 4C and may be a portion that protrudes outward from the wall 4B.
- the wiring board 7 and the non-high-frequency wiring board 8 are positioned on the bottom 4C inside the wall 4B, and on the pedestal 4D outside the wall 4B.
- the interior of the recess U1 is sealed by joining the lid 5 to the metal case 4. As shown in FIG.
- One wiring board 7 transmits a high frequency signal.
- the other non-high frequency wiring board 8 leads a non-high frequency signal or voltage such as a power supply voltage.
- the end inside the recess U1 is called the “inner end”
- the end outside the package is called the “outer end”.
- the term “end portion” means both the end and the vicinity of the end.
- the wiring board 7 corresponds to the wiring board according to the present disclosure.
- the non-high-frequency wiring board 8 has an insulating substrate 8A and wiring conductors 8B.
- the wiring conductor 8B extends from the inner end to the outer end of the base 8A and is exposed on the upper surface of the base 8A inside and outside the recess U1.
- a connection member w such as a bonding wire can be connected to the inner end portion side of the wiring conductor 8B exposed on the upper surface of the substrate 8A.
- a terminal member such as a lead terminal for external connection can be connected to the outer end of the wiring conductor 8B.
- FIG. 2A is a perspective view showing the wiring board according to the embodiment.
- FIG. 2B is a cutaway perspective view of the wiring board cut vertically.
- 3A and 3B are diagrams showing the essential parts of the wiring board according to the embodiment, wherein FIG. 3A is a perspective view of the essential parts viewed from above, and FIG. 3B is a perspective view of the essential parts viewed from below. is.
- the film-like conductor is shown by shading.
- the end of the film-shaped conductor located on the end face or cross section of the substrate 7A is indicated by a thick solid line.
- the wiring board 7 includes a signal conductor 70, a first ground conductor 71, a second ground conductor 72, a third ground conductor 73, a first ground conductor 71 and a second ground conductor. It has a connection conductor 75 electrically connected to the conductor 72, a connection conductor 76 electrically connected to the first ground conductor 71 and the third ground conductor 73, and the base 7A on which these conductors are located.
- the base 7A is composed of a dielectric.
- the substrate 7A may be configured by laminating a plurality of dielectric layers 7a.
- a ceramic may be applied as the dielectric.
- the base body 7A has a plate-like plate-like portion 7A1 having a first surface S1 and a stepped portion 7A2 protruding stepwise from the plate-like portion 7A1.
- the stepped portion 7A2 is located between the inner end and the outer end of the plate-like portion 7A1 on the first surface S1, and is in contact with the wall 4B of the metal case 4, so that the wall 4B and the signal conductor 70 are in contact with each other. and insulate.
- the signal conductor 70, the first ground conductor 71, the second ground conductor 72 and the third ground conductor 73 are film conductors. Although not particularly limited, the signal conductor 70, the first ground conductor 71, the second ground conductor 72 and the third ground conductor 73 are planar.
- the distance between the conductors 75 and 76 is designed to match the predetermined impedance corresponding to the frequency of the transmission signal and the dielectric constant of the substrate 7A.
- the distance between the first ground conductor 71 and the third ground conductor 73 is 1/4 or less of the effective wavelength of the high frequency signal, and the distance between the connection conductors 75 arranged on both sides of the signal conductor 70 is 1 of the effective wavelength of the high frequency signal. /2 or less.
- the signal frequency is assumed to be in the 80 GHz band or higher.
- the signal conductor 70 extends from the inner end to the outer end on the first surface S1 of the plate-like portion 7A1.
- the signal conductor 70 may be configured to extend linearly.
- the first ground conductor 71 extends from the inner end to the outer end on the first surface S1 of the plate-like portion 7A1.
- the two first ground conductors 71 sandwich the signal conductor 70 from both sides in the short direction of the signal conductor 70 with a gap therebetween.
- the second ground conductor 72 extends from the inner end to the outer end of the plate-like portion 7A1 inside the plate-like portion 7A1.
- the second ground conductor 72 is spaced apart from and faces the signal conductor 70 at a constant distance H (see FIG. 2B) over the entire length of the signal conductor 70 . That is, the distance between the signal conductor 70 and the second ground conductor 72 is H.
- the second ground conductor 72 similarly faces the first ground conductor 71 at a distance H from the first ground conductor 71 .
- the second ground conductor 72 may be positioned on the second surface S2 opposite to the first surface S1 of the plate-like portion 7A1.
- the signal conductor 70, the first ground conductor 71, and the second ground conductor 72 face each other with a dielectric having a thickness H interposed therebetween.
- the second ground conductor 72 extends to a position spaced apart from the side surface of the base 7A (FIG. 2A), but may extend to the side surface of the base 7A.
- the third ground conductor 73 extends inside the stepped portion 7A2 from the inner end to the outer end of the stepped portion 7A2.
- the third ground conductor 73 extends a certain distance apart from the signal conductor 70 and the first ground conductor 71 .
- connection conductors 75 include castellation conductors 75c positioned inside (inside the recess U1) and outside (outside the recess U1) the plate-like portion 7A1, and inside the plate-like portion 7A1. and a plurality of via conductors (75v) interposed between the first ground conductor (71) and the second ground conductor (72).
- the castellation conductor 75c is a film-like conductor located on the surface of the groove (or recess) K1 located inside and outside the plate-like portion 7A1.
- the groove K1 and the castellation conductor 75c may be omitted, and instead, the via conductors 75v may be positioned near the inner and outer ends of the plate-like portion 7A1.
- the distance between the two connection conductors 75 (two castellation conductors 75c) in the direction sandwiching the signal conductor 70 is 1/2 or less of the effective wavelength of the high frequency signal.
- the spacing in the direction across signal conductor 70 is 1/2 or less of the effective wavelength of the high-frequency signal.
- the spacing in the arrangement direction of the plurality of via conductors 75v along the signal conductor 70 is 1/4 or less of the effective wavelength of the high frequency signal.
- the connection conductor 76 includes castellation conductors positioned inside (inside the recess U1) and outside (outside the recess U1) the step 7A2 and a first grounding conductor within the step 7A2. It includes a plurality of via conductors (not shown) interposed between the conductor 71 and the third ground conductor 73 .
- the castellation conductor is a film conductor located on the surface of the groove (or recess) K2 located inside and outside the stepped portion 7A2. Note that the groove K2 and the castellation conductor may be omitted, and instead, the via conductors may be positioned near the inner and outer ends of the stepped portion 7A2. Also, the third ground conductor 73 and the connection conductor 76 may be omitted.
- the signal conductor 70 has an inductive pattern Q1 at any point within the range of distance H/3 or more and distance H or less from the end of the first surface S1.
- a distance H is the distance between the signal conductor 70 and the second ground conductor 72 .
- the pattern Q1 is drawn in a simplified manner in FIG. 1, and its position and size are different from those of the actual pattern.
- the first ground conductor 71 may have an inductive pattern on the side closer to the signal conductor 70.
- FIG. A pattern having inductance means that the inductance value around the pattern of the signal conductor 70 increases compared to the case where there is no pattern.
- connection conductor 75 and the second ground conductor 72 are discontinued in the signal transmission direction (longitudinal direction of the signal conductor 70), as shown in FIG. 3A.
- a current path R1 along the end face of the wiring board 7 is generated.
- the ground voltage becomes unstable, such as the current density at the central portion P1 of the second ground conductor 72 decreasing. Therefore, in the present embodiment, the pattern Q1 of the signal conductor 70 or the pattern provided on the side of the first ground conductor 71 close to the signal conductor 70 is used to add an inductance component near the end of the signal conductor 70.
- the inductance component and the inductance component L1 of the current path R1 are matched, and the matching reduces deterioration of the high-frequency characteristics of signal transmission and improves the high-frequency characteristics of signal transmission.
- FIGS. 5A and 5B show reflection loss characteristics and insertion loss characteristics of the wiring board 7 of Embodiment 1 obtained by simulation. Further, the graphs of FIGS. 5A and 5B show the characteristics of Reference Form 1 shown in FIG. 4A and Reference Form 2 shown in FIG. 4E.
- Reference form 1 in FIG. 4A is a configuration example in which the signal conductor 70 and the first ground conductor 71 do not include a pattern having inductance.
- the pattern Q80 having inductance is provided from the end of the first surface S1 to H/3 or less.
- the wiring substrate 7 of Embodiment 1 has the pattern Q1, so that the reflection loss in the high frequency band is reduced, and , the attenuation of the insertion signal in the high frequency band can be reduced.
- the pattern Q1 having inductance is located at a distance of H/3 or more from the end of the first surface S1.
- FIG. 4A is a perspective view showing the pattern of Reference Embodiment 1
- FIGS. 4B to 4D are patterns of Embodiments 1 to 3
- FIG. 4E is a perspective view of the pattern of Reference Embodiment 2.
- FIG. 6A-6C are perspective views showing patterns of Embodiments 4-6.
- 8A-8C are perspective views showing patterns of Embodiments 7-9.
- 10A-10D are perspective views showing the patterns of Embodiments 10-13.
- the patterns Q1 to Q13 of Embodiments 1 to 13 are located within a range of distance H/3 or more and distance H or less from the end of the first surface S1.
- the direction along the film surface of the signal conductor 70 and orthogonal to the longitudinal direction of the signal conductor is referred to as the lateral direction of the signal conductor 70 .
- the pattern Q1 of Embodiment 1 in FIG. 4B is a notch and is located in the signal conductor 70.
- the pattern Q1 is a recessed notch (which may be angularly recessed or rounded), and the width of the notch is the same from the front to the back in the depth direction of the notch (the lateral direction of the signal conductor 70). good too.
- the front side of the notch means the open side of the partially opened notch.
- the depth of the notch means the side opposite to the open side of the partially opened notch.
- the signal conductor 70 has the pattern Q1 on one side and the other side in the short direction of the signal conductor 70, but it may be on only one side.
- the pattern Q1 has the effect of making the signal conductor 70 thinner (reducing the cross-sectional area of the current path).
- the signal conductor 70 becomes thin, the current density in the thin portion increases, and the magnetic flux density generated around the thin portion increases, so the inductance component increases.
- the pattern Q1 by moving the signal conductor 70 away from the first ground conductor 71, the capacitance component of that portion is reduced. Therefore, the pattern Q1 can effectively generate an inductance component in the signal conductor 70 .
- the pattern Q2 of Embodiment 2 in FIG. 4C is a notch, and is located on the signal conductor 70 side of the first ground conductor 71 .
- the pattern Q2 is a recessed notch (which may be angularly recessed or rounded), and the width of the notch is the same from the front to the back in the depth direction of the notch (the lateral direction of the signal conductor 70). good too.
- the first ground conductor 71 has the pattern Q2 on both one side and the other across the signal conductor 70, but may have the pattern Q2 on only one side. Due to the pattern Q2, the distance between the signal conductor 70 and the first ground conductor 71 is increased, and the capacitance component at that location is reduced, so that the signal conductor 70 can generate an inductance component.
- the pattern Q3 of the third embodiment in FIG. 4D is a combination of the pattern Q1 of the first embodiment and the pattern Q2 of the second embodiment. Also in this configuration, an inductance component can be generated at the portion of the pattern Q3 of the signal conductor 70 by the same action as in the first and second embodiments.
- the pattern Q4 of Embodiment 4 in FIG. 6A is a notch and is located only on one side of the signal conductor 70 in the short direction.
- the shape of the notch is the same as in the first embodiment. Also, since the notch is positioned only on one side, the depth of the notch may be set to be half or more of the width of the signal conductor 70 .
- the pattern Q4 can generate an inductance component in the signal conductor 70 by the same action as in the first embodiment.
- the patterns Q5a and Q5b of Embodiment 5 in FIG. 6B are two cutouts, which are positioned on one side of the signal conductor 70 in the short direction and on the other side of the first ground conductor 71 in the short direction.
- the shape of the cutouts (Q5a, Q5b) is the same as the pattern Q1 of the first embodiment, but may be the same as any of the patterns Q11 to Q13 of the tenth to thirteenth embodiments described later.
- an inductance component can be generated in the signal conductor 70 by the same action as in the first and second embodiments. From the results of the simulation, when one notch (Q5a, Q5b) is provided in each of the signal conductor 70 and the first ground conductor 71, it is better to provide the notches (Q5a, Q5b) in opposite directions in the width direction of the signal conductor 70. High-frequency transmission characteristics can be improved.
- the patterns Q6a and Q6b of Embodiment 6 in FIG. 6C are two notches, which are located on one side of the signal conductor 70 in the short direction and on the same side of the first ground conductor 71 in the short direction. Therefore, the patterns Q6a and Q6b face each other across a gap.
- the shape of the cutouts (Q6a, Q6b) is the same as the pattern Q1 of the first embodiment, but may be the same as any of the patterns Q11 to Q13 of the tenth to thirteenth embodiments described later.
- the patterns Q6a and Q6b of the sixth embodiment can also generate an inductance component in the signal conductor 70 by the same effects as those of the first and second embodiments.
- the pattern Q7 of Embodiment 7 in FIG. 8A is a through-hole located in the center of the signal conductor 70 in the lateral direction.
- the through-hole of the pattern Q7 may have any shape, such as a rectangular shape or a rounded shape.
- the pattern Q7 has the effect of making the signal conductor 70 thinner, and an inductance component can be generated in that portion.
- the pattern Q8 of Embodiment 8 in FIG. 8B is a hole that communicates with the signal conductor 70 and the substrate 7A (plate-like portion 7A1).
- the hole may be located in the center of the signal conductor 70 in the lateral direction and have a depth of about half (H/2) the distance to the second ground conductor 72 .
- the pattern Q8 has the effect of narrowing the current path of the signal conductor 70 and the effect of reducing the capacitance component around the pattern Q8, so that an inductance component can be generated in this portion.
- Patterns Q9a and Q9b of Embodiment 9 in FIG. 8C include a dividing portion (Q9a) that divides the signal conductor 70 into two in the longitudinal direction, and a connection member such as a bonding wire that conducts the two divided signal conductors 70. (Q9b).
- the patterns Q9a and Q9b have the effect of narrowing the current path of the relevant portion, and the pattern Q9b (connecting member) is separated from the dielectric substrate 7A (plate-like portion 7A1) to reduce the capacitance component. Therefore, an inductance component can be generated in that portion of the signal conductor 70 .
- the pattern Q10 of Embodiment 10 in FIG. 10A is a recessed notch, and the depth of the notch is wider than the width of the front side.
- the pattern Q10 is gradually widened over the entire length of the notch in the depth direction, but may be configured to have a portion wider at the back than at the front.
- the pattern Q10 is positioned on both sides of the signal conductor 70 in the short direction, but may be positioned on only one side.
- the pattern Q10 has the effect of making the signal conductor 70 thinner, and moving away from the first ground conductor 71 reduces the capacitance component, thereby effectively generating the inductance component. Furthermore, since the notch of the pattern Q10 is narrow on the front side, the influence on the coupling of the signal conductor 70 and the first ground conductor 71 in high frequency transmission can be reduced. On the other hand, since the notch of the pattern Q10 is wide at the back, the thin portion of the signal conductor 70 can be lengthened. Therefore, it is possible to reduce the characteristic fluctuation due to the impedance matching deviation in the signal transmission frequency band and improve the transmission characteristic.
- the pattern Q11 of Embodiment 11 in FIG. 10B is a recessed notch, and the depth of the notch is narrower than the width of the front side.
- the pattern Q11 gradually narrows in width over the entire length of the notch in the depth direction, but may have a portion narrower in the back than in the front.
- the pattern Q11 is positioned on both sides in the short direction of the signal conductor 70, but may be positioned on only one side.
- the pattern Q11 also has the effect of making the signal conductor 70 thinner and the effect of reducing the capacitance component of the signal conductor 70, so that an inductance component can be generated in this portion.
- the pattern Q12 of the twelfth embodiment of FIG. 10C is a recessed notch located on the signal conductor 70 side of the first ground conductor 71, and the depth of the notch is wider than the width of the front side.
- the pattern Q12 gradually widens over the entire length of the notch in the depth direction, but may have a portion wider at the back than at the front.
- the first ground conductor 71 has the pattern Q12 on both one side and the other across the signal conductor 70, but may have the pattern Q12 on only one side.
- the pattern Q12 can also generate an inductance component in the vicinity of the pattern Q12 of the signal conductor 70 by the same action as the pattern Q2 of the second embodiment.
- the pattern Q13 of the thirteenth embodiment of FIG. 10D is a recessed notch located on the signal conductor 70 side of the first ground conductor 71, and the depth of the notch is narrower than the width of the front side.
- the pattern Q13 gradually narrows in width over the entire length of the notch in the depth direction, but may have a portion narrower in the back than in the front.
- the first ground conductor 71 has the pattern Q13 on both one side and the other across the signal conductor 70, but may have the pattern Q13 on only one side.
- the pattern Q13 can also generate an inductance component in the vicinity of the pattern Q13 of the signal conductor 70 by the same action as the pattern Q2 of the second embodiment.
- 5A and 5B are graphs showing reflection loss characteristics and insertion loss characteristics of Reference Embodiments 1 and 2 and Embodiments 1-3.
- 7A, 9A and 11A, and 7B, 9B and 11B are graphs showing the reflection loss characteristics and insertion loss characteristics of Reference Embodiment 1 and Embodiments 4 to 13.
- the patterns Q1 to Q13 can improve the high-frequency characteristics of signal transmission. Further, according to the electronic component housing package 1 in which the wiring board 7 is incorporated, high-frequency signals can be transmitted inside and outside the concave portion U1 by the wiring board 7, and furthermore, the high-frequency characteristics of signal transmission can be improved by the patterns Q1 to Q13. can be improved.
- FIG. 12 is a diagram illustrating an electronic device and an electronic module according to an embodiment of the present disclosure.
- the electronic device 100 of the present embodiment includes an electronic component housing package 1, an electronic component 101 mounted in a recess U1, and a lid 5 closing the opening of the recess U1.
- the electronic component 101 is a component that inputs and outputs high-frequency signals, and its type is not particularly limited, and may be a semiconductor device, an optical communication device, or the like.
- the electronic component 101 has a signal electrode and a ground electrode at the same height as the first surface S1 (FIG. 2A) of the substrate 7A.
- the conductors 70 are electrically connected to first ground conductors 71 whose ground electrodes are positioned on one side and the other with the signal conductor 70 interposed therebetween. Further, the electronic component 101 has a power supply electrode, and the power supply electrode and the wiring conductor 8B of the non-high frequency wiring board 8 are electrically connected via a connecting member w such as a bonding wire.
- the wiring board 7 may have a conductor film on its upper or lower surface that is electrically connected to the first ground conductor 71 , the second ground conductor 72 and the third ground conductor 73 , and the conductor film may be electrically connected to the metal case 4 .
- the connection between the electronic component 101 and the first ground conductor 71 via the connection member w may be omitted.
- FIG. 13 is a diagram showing an electronic device according to another embodiment of the present disclosure.
- An electronic device 130 of this embodiment includes a wiring board 17 and an electronic component 101B mounted on the wiring board 17 .
- the wiring board 17 includes a base 17A having a first surface S11 and a second surface S12 opposite to the first surface S11, a signal conductor 170 positioned on the first surface S11 and extending to an outer end, A first ground conductor 171 located on the first surface S11 and extending to the outer end, a second ground conductor 172 extending to the outer end of the base 17A inside the base 17A, and the first ground conductor. 171 and a connection conductor 175 electrically connecting the second ground conductor 172 .
- the two first ground conductors 171 sandwich the signal conductor 170 from both sides in the short direction of the signal conductor 170 with a gap therebetween.
- the second ground conductor 172 may be located on the second surface S12.
- the base 17A may be made of a dielectric material and may be made up of a plurality of laminated dielectric layers.
- the signal conductor 170, first ground conductor 171, second ground conductor 172 and connection conductor 175 are configured in the same manner as the signal conductor 70, first ground conductor 71, second ground conductor 72 and connection conductor 75 of the above-described embodiment. be.
- the signal conductor 70 and the first ground conductor 71 described above extend from one end to the other end of the base 7A
- the signal conductor 170 and the first ground conductor 171 extend from one end of the base 17A ( outer end), and the other end (inner end) is discontinued on the first surface S11.
- the pattern Q1 is located on the side extending to one end of the substrate 17A. Note that the pattern Q1 is drawn in a simplified manner in FIG. 13, and its position and size are different from those of the actual pattern.
- the signal conductor 170 and the first ground conductor 171 are discontinued near the mounting portion of the electronic component 101B, and are electrically connected to a plurality of electrodes of the electronic component 101B via connecting members w such as bonding wires.
- the wiring board 17 may have the same configuration as the third ground conductor 73 and the connection conductor 76 of the above-described embodiment.
- the wiring board 17 and the base 17A have a recess U2 for accommodating the electronic component 101B, and the opening of the recess U2 may be closed by the lid 15, or the wiring board 17 does not have the recess U2.
- a plate-like structure having the first surface S11 as a plate surface may be used.
- FIG. 14A is a cross-sectional view showing an electronic device according to another embodiment of the present disclosure.
- FIG. 14B is a plan view showing the electronic device.
- the cross-sectional view of FIG. 14A shows a cross-section along line AA of FIG. 14B.
- the cover 25 is omitted in FIG. 14B.
- the electronic device 140 of the embodiment shown in FIGS. 14A and 14B has a metal case 24, a wiring board 27 functioning as a relay board, an electronic component 101C, a lid body 25, a central conductor and an outer conductor, and is capable of transmitting high frequencies. It comprises a coaxial component 28 for transmitting signals and a window member 29 for transmitting optical signals.
- the metal case 24 has a wall 24B, a bottom 24C, and a recess U3 surrounded by the wall 24B and the bottom 24C.
- a table M1 is positioned in the concave portion U3 to match the height of the wiring board 27 and the electronic component 101C with the signal path, and the wiring board 27 and the electronic component 101C are mounted on the table M1.
- the base M1 may be integrated with the metal case 24, or the base M1 may be omitted depending on the height of the wiring board 27 and the height of the electronic component 101C.
- the lid 25 is joined to the upper end surface of the wall 24B to seal the inside of the recess U3.
- the wall body 24B has a through hole h24a for accommodating the coaxial component 28 and a through hole h24b for transmitting optical signals.
- the coaxial component 28 is accommodated in the through hole h24a, and the outer conductor of the coaxial component 28 is joined to the wall 24B via a conductive joining material.
- the through hole h24b is closed by the window member 29 having translucency via the fixing member 29a.
- the electronic component 101C is an optical semiconductor element that receives a high-frequency electrical signal and outputs an optical signal.
- the wiring board 27 corresponds to one embodiment of the wiring board according to the present disclosure.
- the wiring substrate 27 may have the overall configuration shown in FIG. 3 (the principal part of the wiring substrate 7 of the first embodiment).
- the wiring board 27 includes a dielectric substrate 27A, a signal conductor 270, a first ground conductor 271, a second ground conductor 272, and a connection conductor 275.
- FIG. The base 27A is plate-shaped, and the signal conductor 270, the first ground conductor 271, the second ground conductor 272 and the connection conductor 275 are the same as the signal conductor 70, the first ground conductor 71, the second ground conductor 72 and the connection conductor of the first embodiment. It is configured similarly to conductor 75 .
- the signal conductor 270 has the pattern Q1 of the first embodiment. Various modifications described above may be applied to the pattern, and the pattern may be positioned on the signal conductor 270, the first ground conductor 271, or both.
- Substrate 27A may have a dielectric layer positioned below second ground conductor 272 (on the side opposite signal conductor 270).
- One end of the signal conductor 270 is electrically connected to the center conductor of the coaxial component 28 via a conductive bonding material or the like, and the other end of the signal conductor 270 is connected to a signal terminal of the electronic component 101C by a bonding wire or the like. They are connected via a connecting member w.
- the signal conductor 270 has the pattern Q1 near the other end and does not have the pattern Q1 near the one end.
- the first ground conductor 271, the second ground conductor 272 and the connection conductor 275 are electrically connected to the outer conductor of the coaxial component 28 via the metal case 24 and base M1.
- first ground conductor 271 is connected to the ground terminal of the electronic component 101C via a connection member w such as a bonding wire.
- connection member w such as a bonding wire.
- One end of the first ground conductor 271 may be connected to the vicinity of the coaxial component 28 of the wall 24B via a conductive connecting member.
- signal conductor 270 may also have pattern Q1 near the one end.
- a configuration in which the electronic component 101C is removed from the electronic device 140 corresponds to an example of the electronic component housing package 1C according to the embodiment of the present disclosure.
- FIGS. 14A and 14B show an example in which the electronic component housing package 1C and the electronic device 140 are configured to output optical signals.
- the electronic component housing package and the electronic device may not have a configuration for inputting/outputting optical signals, but may have a configuration for inputting/outputting electrical signals or wireless signals. It may be used as a relay board.
- the electronic module 200 of this embodiment includes a module substrate 201 and an electronic device 100 mounted on the module substrate 201, as shown in FIG.
- other electric devices, electronic elements, electric elements, optical devices, and the like may be mounted on the module substrate 201 .
- the electronic device 100 may be electrically connected to the signal line or ground conductor of the module board 201 via the relay board 202 .
- the high frequency characteristics of the electronic devices 100, 130, 140 and the electronic module 200 are improved by having the wiring substrates 7, 17 having good high frequency characteristics. can be improved.
- the wiring board, the electronic component housing package, the electronic device, and the electronic module of the present disclosure are not limited to the above embodiments.
- patterns with different configurations for example, patterns Q1, Q10, Q11
- patterns with different configurations may be applied to one pattern and the other pattern.
- patterns with different configurations for example, patterns Q1, Q10, Q11
- one pattern and the other pattern have different configurations.
- a pattern eg, pattern Q2, Q12, Q13
- patterns with different configurations may be applied.
- the wiring board 7 of the above embodiment has the patterns Q1 to Q13 on both sides near the inner end and near the outer end, only the outer end or the inner end
- the patterns Q1 to Q13 may be provided only on one side, such as only near the part.
- the signal conductor 270 of the wiring board 27 as well, the pattern may be provided both in the vicinity of one end and in the vicinity of the other end.
- only one wiring substrate 7 may be provided in one electronic component housing package, or three or more wiring substrates 7 may be provided.
- some specific examples of patterns having inductance were shown, but the pattern may have any configuration as long as inductance can be added.
- the portion of the signal conductor closer to the end than the patterns Q1 to Q13 has the same width as the portion opposite to the end, but the connecting member (bonding wire) w In order to compensate for the inductance of , the portion closer to the end may be widened.
- the details shown in the embodiment can be changed as appropriate.
- the present disclosure can be used for wiring boards, electronic component housing packages, electronic devices, and electronic modules.
Abstract
Description
誘電体から構成され、第1面および該第1面とは反対側の第2面を有する基体と、
前記第1面上に位置し、前記基体の端部まで延在する信号導体と、
前記第1面上に位置し、前記信号導体を挟んで前記端部まで延在する2つの第1接地導体と、
前記基体の内部又は前記第2面上に位置し、前記信号導体と対向して前記端部まで延在する第2接地導体と、
前記第1接地導体と前記第2接地導体とを電気的に接続する接続導体と、
を有し、
前記信号導体と前記第2接地導体とは距離Hで離間し、
前記信号導体と前記第1接地導体との一方又は両方は、前記端部から前記距離Hの1/3以上でかつ前記距離H以下の箇所に、インダクタンス性を有するパターンを有する。
上記の配線基板と、
電子部品を収容可能な金属ケースと、
を備える。
上記の電子部品収容用パッケージと、
前記電子部品収容用パッケージに搭載された電子部品と、
を備える。
上記の配線基板と、
前記配線基板に電気的に接続された電子部品と、
を備える。
上記の電子装置と、
前記電子装置を搭載したモジュール用基板と、
を備える。
信号導体70は、図2A及び図2Bに示すように、第1面S1の端から距離H/3以上かつ距離H以下の範囲のいずれかの箇所に、インダクタンス性を有するパターンQ1を有する。距離Hは、信号導体70と第2接地導体72との距離である。なお、図1においてパターンQ1は簡略化して描いており、位置及び大きさは実際のものと異なる。信号導体70のパターンQ1の代わりに、第1接地導体71が、インダクタンス性を有するパターンを、信号導体70に近い側に有してもよい。インダクタンス性を有するパターンとは、パターンが無い場合と比較して、信号導体70のパターン周辺のインダクタンス値が増加することを意味する。
板状部7A1の内方端部及び外方端部においては、接続導体75と第2接地導体72とが信号伝送方向(信号導体70の長手方向)において途切れており、図3Aに示すように、配線基板7の端面に沿った電流経路R1が生じる。そして、当該電流経路R1にインダクタンス成分L1が生じることで、第2接地導体72の中央部位P1の電流密度が小さくなるなど、接地電圧が不安定になる。そこで、本実施形態では、信号導体70のパターンQ1、あるいは、第1接地導体71の信号導体70に近い側に設けられたパターンにより、信号導体70の端部の近傍にインダクタンス成分を付加することで、当該インダクタンス成分と電流経路R1のインダクタンス成分L1との整合が図られ、当該整合により、信号伝送の高周波特性に劣化が生じることを低減させ、信号伝送の高周波特性を向上することができる。
続いて、インダクタンス性を有するパターンの具体例を説明する。図4Aは参考形態1のパターン、図4B~図4Dは実施形態1~実施形態3のパターン、並びに、図4Eは参考形態2のパターンを示す斜視図である。図6A~図6Cは、実施形態4~実施形態6のパターンを示す斜視図である。図8A~図8Cは、実施形態7~実施形態9のパターンを示す斜視図である。図10A~図10Dは、実施形態10~実施形態13のパターンを示す斜視図である。実施形態1~実施形態13のパターンQ1~Q13は、第1面S1の端から距離H/3以上かつ距離H以下の範囲内に位置する。以下、信号導体70の膜面に沿った方向で、信号導体の長手方向に直交する方向を信号導体70の短手方向と呼ぶ。
図12は、本開示の実施形態に係る電子装置及び電子モジュールを示す図である。本実施形態の電子装置100は、図1及び図12に示すように、電子部品収容用パッケージ1と、凹部U1内に搭載された電子部品101と、凹部U1の開口を塞ぐ蓋体5とを備える。電子部品101は、高周波信号を入出力する部品であり、半導体素子、光通信用素子など、その種類は特に限定されない。電子部品101は、基体7Aの第1面S1(図2A)と同様の高さに信号電極と接地電極とを備え、ボンディングワイヤー等の接続部材wを介して、信号電極が配線基板7の信号導体70へ、接地電極が信号導体70を挟んで一方と他方とに位置する第1接地導体71へ、それぞれ電気的に接続される。また、電子部品101は、電源電極を有し、ボンディングワイヤー等の接続部材wを介して電源電極と非高周波用配線基板8の配線導体8Bとが電気的に接続される。
4、24 金属ケース
4B、24B 壁体
4C、24C 底体
4D 台座
5、15、25 蓋体
7、17、27 配線基板
7A、17A、27A 基体
7A1 板状部
7A2 段部
7a 誘電体層
70、170、270 信号導体
71、171、271 第1接地導体
72、172、272 第2接地導体
75、175、275 接続導体
75c キャスタレーション導体
75v ビア導体
S1、S11 第1面
S2、S12 第2面
U1、U2、U3 凹部
Q1~Q13 パターン
H 距離
100、130、140 電子装置
101、101B、101C 電子部品
200 電子モジュール
201 モジュール用基板
Claims (8)
- 誘電体から構成され、第1面および該第1面とは反対側の第2面を有する基体と、
前記第1面上に位置し、前記基体の端部まで延在する信号導体と、
前記第1面上に位置し、前記信号導体を挟んで前記端部まで延在する2つの第1接地導体と、
前記基体の内部又は前記第2面上に位置し、前記信号導体と対向して前記端部まで延在する第2接地導体と、
前記第1接地導体と前記第2接地導体とを電気的に接続する接続導体と、
を有し、
前記信号導体と前記第2接地導体とは距離Hで離間し、
前記信号導体と前記第1接地導体との一方又は両方は、前記端部から前記距離Hの1/3以上でかつ前記距離H以下の箇所に、インダクタンス性を有するパターンを有する、
配線基板。 - 前記信号導体が前記パターンを有する請求項1記載の配線基板。
- 前記第1接地導体が前記信号導体に近い側に前記パターンを有する請求項1又は請求項2に記載の配線基板。
- 前記パターンは切欠きである請求項1から請求項3のいずれか一項に記載の配線基板。
- 前記切欠きは、奥の方が手前よりも幅広の部分を含む、
請求項4記載の配線基板。 - 請求項1から請求項5のいずれか一項に記載の配線基板と、
電子部品を収容可能な金属ケースと、
を備える電子部品収容用パッケージ。 - 請求項1から請求項5のいずれか一項に記載の配線基板、あるいは、請求項6記載の電子部品収容用パッケージと、
前記配線基板又は前記電子部品収容用パッケージに搭載された電子部品と、
を備える電子装置。 - 請求項7に記載の電子装置と、
前記電子装置を搭載したモジュール用基板と、
を備える電子モジュール。
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Citations (5)
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JPH02237301A (ja) * | 1989-03-10 | 1990-09-19 | Nec Corp | 同軸―マイクロストリップ線路変換器 |
JP2001102820A (ja) * | 1999-09-30 | 2001-04-13 | Toyota Central Res & Dev Lab Inc | 高周波回路 |
JP2004319650A (ja) * | 2003-04-14 | 2004-11-11 | Kyocera Corp | 入出力端子および半導体素子収納用パッケージならびに半導体装置 |
JP2007006065A (ja) * | 2005-06-23 | 2007-01-11 | Ngk Spark Plug Co Ltd | 高周波信号伝送用の基板と半導体素子用パッケージ |
JP2009076828A (ja) * | 2007-09-25 | 2009-04-09 | Sumitomo Metal Electronics Devices Inc | 半導体素子収納用パッケージ及び半導体装置 |
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Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH02237301A (ja) * | 1989-03-10 | 1990-09-19 | Nec Corp | 同軸―マイクロストリップ線路変換器 |
JP2001102820A (ja) * | 1999-09-30 | 2001-04-13 | Toyota Central Res & Dev Lab Inc | 高周波回路 |
JP2004319650A (ja) * | 2003-04-14 | 2004-11-11 | Kyocera Corp | 入出力端子および半導体素子収納用パッケージならびに半導体装置 |
JP2007006065A (ja) * | 2005-06-23 | 2007-01-11 | Ngk Spark Plug Co Ltd | 高周波信号伝送用の基板と半導体素子用パッケージ |
JP2009076828A (ja) * | 2007-09-25 | 2009-04-09 | Sumitomo Metal Electronics Devices Inc | 半導体素子収納用パッケージ及び半導体装置 |
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