JP2004319847A - Surface mounted soldered composite component - Google Patents

Surface mounted soldered composite component Download PDF

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Publication number
JP2004319847A
JP2004319847A JP2003113197A JP2003113197A JP2004319847A JP 2004319847 A JP2004319847 A JP 2004319847A JP 2003113197 A JP2003113197 A JP 2003113197A JP 2003113197 A JP2003113197 A JP 2003113197A JP 2004319847 A JP2004319847 A JP 2004319847A
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JP
Japan
Prior art keywords
component
solder
soldering
composite
fillet
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Pending
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JP2003113197A
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Japanese (ja)
Inventor
Akihiro Masuko
昭宏 増子
Akira Yokofuji
明 横藤
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SPC Electronics Corp
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SPC Electronics Corp
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Filing date
Publication date
Application filed by SPC Electronics Corp filed Critical SPC Electronics Corp
Priority to JP2003113197A priority Critical patent/JP2004319847A/en
Publication of JP2004319847A publication Critical patent/JP2004319847A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L24/00Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
    • H01L24/01Means 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
    • H01L24/26Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
    • H01L24/31Structure, shape, material or disposition of the layer connectors after the connecting process
    • H01L24/32Structure, shape, material or disposition of the layer connectors after the connecting process of an individual layer connector
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/80Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected
    • H01L2224/83Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a layer connector
    • H01L2224/8338Bonding interfaces outside the semiconductor or solid-state body
    • H01L2224/83385Shape, e.g. interlocking features
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/10Details of semiconductor or other solid state devices to be connected
    • H01L2924/11Device type
    • H01L2924/14Integrated circuits

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a surface mounted soldered composite component in which solder is prevented from running out and pouring into an inhibition area at the time soldering a conductive layer formed on the lower surface of a 2nd component to an upper conductive surface of a 1st component. <P>SOLUTION: The 2nd component 2 is put on the 1st component 1 and the conductive layer 2a formed on the lower surface of the 2nd component 2 is soldered 3 to the upper conductive surface 1a of the 1st component 1. A recessed part 5 corresponding to the edge part of the 2nd component 2 is formed on the upper conductive surface 1a of the 1st component 1. The conductive layer 2a of the lower surface of the 2nd component 2 is soldered 3 and connected to the upper conductive surface 1a of the 1st component 1 by a fillet 3a formed along the rise surface 5a of the recessed part 5 of the 1st component 1 located under the 2nd component 2. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
本発明は、第1の部品の上に第2の部品が載せられ、第2の部品の下面の導体層が第1の部品の上面の導体層に半田付け接続されている面実装半田付け複合部品に関するものである。
【0002】
【従来の技術】
図3(A)(B)は従来のこの種の面実装半田付け複合部品の平面図及び側面図を示したものである。
【0003】
従来の面実装半田付け複合部品は、図示のように、例えば鉄系合金(Fe、Ko、Ni)等からなるキャリア用基板からなる第1の部品1の上に、例えば電子部品からなる第2の部品2が載せられ、第2の部品2の下面の全面に設けられた接地を兼ねた導体層2aが第1の部品1の上面の導体面1aに半田3付け接続された構造になっていた(例えば、非特許文献1参照。)。
【0004】
第1の部品1は、電気的インターフェース部1Aと機械的インターフェース部1Bとを有する。電気的インターフェース部1Aでは、第2の部品2の半田3付け接続が行われている。機械的インターフェース部1Bには、取り付け箇所にネジ止めするための取り付け孔4があけられている。
【0005】
第2の部品2を第1の部品1の電気的インターフェース部1Aに半田3付け接続するには、半田の品質管理上、下記の点に注意を払う必要がある。
【0006】
(a)半田3が、第1の部品1の半田禁止領域である機械的インターフェース部1Bに流れ込んではならない。
【0007】
(b)半田3付け時に、フィレットが形成されるようにする。
【0008】
(c)半田3の品質を左右する界面部に、不良箇所が発生しないようにする。
【0009】
【非特許文献1】
日本マイクロエレクトロニクス協会編、“厚膜IC化技術”、1983年12月1日発行、株式会社工業調査会、P226(図6.27)
【0010】
【発明が解決しようとする課題】
しかしながら、従来の面実装半田付け複合部品では、半田3が、第1の部品1の半田禁止領域である機械的インターフェース部1Bに流れ込んで、取り付け孔4を塞いでしまう恐れがあり、(a)の条件を満足させ難い問題点があった。
【0011】
また、第2の部品2の下面の導体層2aを第1の部品1の上面の導体面1aに半田3付けするには、フィレットの形成が難しく、(b)の条件を満足させ難い問題点があった。
【0012】
さらに、フィレットの形成が難しいので、半田3の品質を左右する界面部に、半田引けやボイドが発生し易く、(c)の条件を満足させ難い問題点があった。
【0013】
本発明の目的は、第2の部品の下面の導体層を第1の部品の上面の導体面に半田付けする際に、半田が禁止領域に流れ出さない面実装半田付け複合部品を提供することにある。
【0014】
本発明の他の目的は、第2の部品の下面の導体層を第1の部品の上面の導体面に半田付けする際のフィレットの形成を容易に行える面実装半田付け複合部品を提供することにある。
【0015】
【課題を解決するための手段】
本発明は、第1の部品の上に第2の部品が載せられ、第2の部品の下面の導体層が第1の部品の上面の導体面に半田付け接続されている面実装半田付け複合部品を対象とする。
【0016】
本発明に係る面実装半田付け複合部品では、第1の部品の上面の導体面には第2の部品の縁部に対応して凹部が設けられ、第2の部品の下面の導体層は該第2の部品の下に位置する第1の部品の凹部の立上がり面に沿ったフィレットで半田付け接続されていることを特徴とする。
【0017】
このような面実装半田付け複合部品によれば、第2の部品の下面の導体層は該第2の部品の下に位置する第1の部品の凹部の立上がり面に沿ったフィレットで半田付け接続されているので、半田が禁止領域に流れ出すのを第1の部品の凹部で防止することができる。また、フィレットは第2の部品の下に位置する第1の部品の凹部の立上がり面に沿って形成されるので、第2の部品の下面の導体層を第1の部品の上面の導体面に半田付け接続するタイプでもフィレットの形成を容易に行うことができる。
【0018】
この場合、第1の部品をキャリア用基板とし、第2の部品を下面に導電層を有する電子部品の組み合わせでも、第1の部品をプリント回路基板とし、第2の部品を下面に導電層を有する電子部品の組み合わせ等でも、いずれでもよい。
【0019】
また、凹部が第2の部品の両側の下部の第1の部品の導電面にそれぞれ設けられていると、半田の表面張力による力がバランスし、第2の部品を接続箇所の中央に位置決めして半田付けすることができる。
【0020】
【発明の実施の形態】
図1(A)(B)及び図2は本発明に係る面実装半田付け複合部品の実施の形態の一例を示したもので、図1(A)(B)は本例の面実装半田付け複合部品の平面図及び側面図、図2は本例の面実装半田付け複合部品の要部を拡大して示した縦断面図である。なお、図3(A)(B)と対応する部分には、同一符号を付けて示している。
【0021】
本例の面実装半田付け複合部品では、例えば鉄系合金(Fe、Ko、Ni)等からなるキャリア用基板からなる第1の部品1の上面の導体面1aに、例えば電子部品からなる第2の部品2の両端縁部に対応して断面矩形状の凹部5がそれぞれ設けられている。
【0022】
第2の部品2の下面には、本例では、その全面にわたって接地を兼ねた導体層2aが設けられている。この第2の部品2の下面の導体層2aは、該第2の部品2の下に位置する第1の部品1の各凹部5の立上がり面5aに沿ったフィレット3aでそれぞれ半田3付け接続されている。
【0023】
このような面実装半田付け複合部品によれば、第2の部品2の下面の導体層2aは該第2の部品2の下に位置する第1の部品1の凹部5の立上がり面5aに沿ったフィレット3aで半田3付け接続されているので、半田3が禁止領域である機械的インターフェース部1Bに流れ出すのを第1の部品1の凹部5で防止することができる。従って、機械的インターフェース部1Bに存在する取り付け孔4に半田3が流れ込むのを防止することができ、第1の部品1をその取り付け孔4を利用して取り付け部に取付けるのを支障なく行うことができる。
【0024】
また、フィレット3aは第2の部品2の下に位置する第1の部品1の凹部5の立上がり面5aに沿って形成されるので、第2の部品2の下面の導体層2aを第1の部品1の上面の導体面1aに半田3付け接続するタイプでもフィレット3aの形成を容易に行うことができる。
【0025】
さらに、凹部5が、本例で示したように、第2の部品2の両側の下部の第1の部品1の導電面1aにそれぞれ設けられていると、半田3の表面張力による力がバランスし、第2の部品2を接続箇所の中央に位置決めして半田3付けすることができる。
【0026】
上記例では、第1の部品1をキャリア用基板とし、第2の部品2を下面に導電層2aを有する電子部品2として説明したが、第1の部品1をプリント回路基板とし、第2の部品2を下面に導電層2aを有する電子部品2の組み合わせでもよい。このようにすると、第1の部品1であるプリント回路基板に、例えばチップ部品からなる下面に導電層2aを有する電子部品2を、半田3を禁止領域に流さずに、フィレット3aを形成して、容易に半田3付けすることができる。
【0027】
なお、第2の部品2としては、例えば高周波回路基板、ハイブリッドIC、チップ部品等がある。
【0028】
【発明の効果】
本発明に係る面実装半田付け複合部品では、第2の部品の下面の導体層は該第2の部品の下に位置する第1の部品の凹部の立上がり面に沿ったフィレットで半田付け接続されているので、半田が禁止領域に流れ出すのを第1の部品の凹部で防止することができる。また、フィレットは第2の部品の下に位置する第1の部品の凹部の立上がり面に沿って形成されるので、第2の部品の下面の導体層を第1の部品の上面の導体面に半田付け接続するタイプでもフィレットの形成を容易に行うことができる。
【0029】
この場合、凹部が第2の部品の両側の下部の第1の部品の導電面にそれぞれ設けられていると、半田の表面張力による力がバランスし、第2の部品を接続箇所の中央に位置決めして半田付けすることができる。
【図面の簡単な説明】
【図1】(A)(B)は本発明に係る面実装半田付け複合部品の実施の形態の一例を示した平面図及び側面図である。
【図2】本例の面実装半田付け複合部品の要部を拡大して示した縦断面図である。
【図3】(A)(B)は従来の面実装半田付け複合部品の平面図及び側面図である。
【符号の説明】
1 第1の部品
1a 導体面
1A 電気的インターフェース部
1B 機械的インターフェース部
2 第2の部品
2a 導体層
3 半田
3a フィレット
4 取り付け孔
5 凹部
5a 立上がり面
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention provides a surface-mount soldering composite in which a second component is mounted on a first component, and a conductor layer on a lower surface of the second component is connected by soldering to a conductor layer on an upper surface of the first component. It concerns parts.
[0002]
[Prior art]
FIGS. 3A and 3B are a plan view and a side view of a conventional surface mount soldering composite component of this type.
[0003]
As shown in the figure, a conventional surface-mount soldering composite component includes, for example, a first component 1 made of a carrier substrate made of an iron-based alloy (Fe, Ko, Ni) or the like, and a second component made of an electronic component, for example. And a conductor layer 2a also serving as a ground provided on the entire lower surface of the second component 2 is connected to the conductor surface 1a on the upper surface of the first component 1 by soldering 3. (For example, see Non-Patent Document 1).
[0004]
The first component 1 has an electrical interface 1A and a mechanical interface 1B. In the electrical interface section 1A, the solder 3 connection of the second component 2 is performed. The mechanical interface 1B is provided with a mounting hole 4 for screwing to a mounting location.
[0005]
In order to connect the second component 2 to the electrical interface 1A of the first component 1 by soldering 3, it is necessary to pay attention to the following points in quality control of the solder.
[0006]
(A) The solder 3 must not flow into the mechanical interface 1B, which is a solder-inhibited area of the first component 1.
[0007]
(B) At the time of soldering 3, a fillet is formed.
[0008]
(C) A defective portion is prevented from being generated at an interface that affects the quality of the solder 3.
[0009]
[Non-patent document 1]
Japan Microelectronics Association, “Thick Film IC Technology”, published December 1, 1983, Industrial Research Institute, P226 (Fig. 6.27)
[0010]
[Problems to be solved by the invention]
However, in the conventional surface mount soldering composite component, there is a possibility that the solder 3 flows into the mechanical interface portion 1B which is a solder-inhibited area of the first component 1 and closes the mounting hole 4; Is difficult to satisfy the above condition.
[0011]
In addition, in order to solder 3 the conductive layer 2a on the lower surface of the second component 2 to the conductive surface 1a on the upper surface of the first component 1, it is difficult to form a fillet and it is difficult to satisfy the condition (b). was there.
[0012]
Furthermore, since it is difficult to form a fillet, solder shrinkage and voids are likely to occur at the interface that determines the quality of the solder 3, and there is a problem that it is difficult to satisfy the condition (c).
[0013]
An object of the present invention is to provide a surface mount soldering composite component in which solder does not flow into a prohibited area when a conductor layer on a lower surface of a second component is soldered to a conductor surface on an upper surface of the first component. It is in.
[0014]
Another object of the present invention is to provide a surface mount soldering composite component which can easily form a fillet when soldering the conductor layer on the lower surface of the second component to the conductor surface on the upper surface of the first component. It is in.
[0015]
[Means for Solving the Problems]
The present invention provides a surface mount soldering composite in which a second component is mounted on a first component, and a conductor layer on a lower surface of the second component is soldered and connected to a conductor surface on an upper surface of the first component. Target parts.
[0016]
In the surface-mount soldering composite component according to the present invention, the conductor surface on the upper surface of the first component is provided with a concave portion corresponding to the edge of the second component, and the conductor layer on the lower surface of the second component is It is characterized in that it is connected by soldering with a fillet along the rising surface of the recess of the first component located below the second component.
[0017]
According to such a surface-mount soldering composite component, the conductor layer on the lower surface of the second component is connected by soldering with a fillet along the rising surface of the concave portion of the first component located below the second component. Therefore, it is possible to prevent the solder from flowing into the prohibited area by the concave portion of the first component. Further, since the fillet is formed along the rising surface of the concave portion of the first component located below the second component, the conductor layer on the lower surface of the second component is connected to the conductor surface on the upper surface of the first component. A fillet can be easily formed even by a solder connection type.
[0018]
In this case, even in a combination of the first component as a carrier substrate, the second component as an electronic component having a conductive layer on the lower surface, the first component as a printed circuit board, and the second component as a conductive layer on the lower surface. Any combination of electronic components may be used.
[0019]
In addition, when the recess is provided on each of the conductive surfaces of the first component at the lower portion on both sides of the second component, the force due to the surface tension of the solder is balanced, and the second component is positioned at the center of the connection location. Can be soldered.
[0020]
BEST MODE FOR CARRYING OUT THE INVENTION
FIGS. 1A, 1B and 2 show an embodiment of a surface mount soldering composite component according to the present invention, and FIGS. 1A and 1B show the surface mount soldering of this embodiment. FIG. 2 is a plan view and a side view of the composite component, and FIG. 2 is an enlarged longitudinal sectional view showing a main part of the surface-mounted soldering composite component of this example. Parts corresponding to those in FIGS. 3A and 3B are denoted by the same reference numerals.
[0021]
In the surface-mounted soldering composite component of this example, the second component composed of, for example, an electronic component is provided on the conductor surface 1a on the upper surface of the first component 1 composed of a carrier substrate composed of, for example, an iron alloy (Fe, Ko, Ni). Recesses 5 each having a rectangular cross section are provided corresponding to both end edges of the component 2.
[0022]
On the lower surface of the second component 2, in this example, a conductor layer 2a also serving as a ground is provided over the entire surface. The conductor layer 2a on the lower surface of the second component 2 is connected by soldering 3 with a fillet 3a along the rising surface 5a of each concave portion 5 of the first component 1 located below the second component 2. ing.
[0023]
According to such a surface-mount soldering composite component, the conductor layer 2a on the lower surface of the second component 2 extends along the rising surface 5a of the concave portion 5 of the first component 1 located below the second component 2. Since the solder 3 is connected by the fillet 3a, it is possible to prevent the solder 3 from flowing out to the mechanical interface 1B, which is a prohibited area, by the recess 5 of the first component 1. Accordingly, it is possible to prevent the solder 3 from flowing into the mounting hole 4 existing in the mechanical interface 1B, and to mount the first component 1 to the mounting portion using the mounting hole 4 without any trouble. Can be.
[0024]
Also, since the fillet 3a is formed along the rising surface 5a of the concave portion 5 of the first component 1 located below the second component 2, the conductive layer 2a on the lower surface of the second component 2 is The fillet 3a can be easily formed even with the type in which the solder 3 is connected to the conductor surface 1a on the upper surface of the component 1.
[0025]
Furthermore, as shown in this example, when the recesses 5 are provided on the conductive surfaces 1a of the first component 1 at the lower sides on both sides of the second component 2, the force due to the surface tension of the solder 3 is balanced. Then, the second component 2 can be positioned at the center of the connection location and soldered.
[0026]
In the above example, the first component 1 is described as the carrier substrate, and the second component 2 is described as the electronic component 2 having the conductive layer 2a on the lower surface. The component 2 may be a combination of the electronic component 2 having the conductive layer 2a on the lower surface. In this way, the electronic component 2 having the conductive layer 2a on the lower surface made of, for example, a chip component is formed on the printed circuit board, which is the first component 1, by forming the fillet 3a without flowing the solder 3 to the prohibited area. The solder 3 can be easily attached.
[0027]
The second component 2 includes, for example, a high-frequency circuit board, a hybrid IC, a chip component, and the like.
[0028]
【The invention's effect】
In the surface-mount soldering composite component according to the present invention, the conductor layer on the lower surface of the second component is connected by soldering with a fillet along the rising surface of the concave portion of the first component located below the second component. Therefore, it is possible to prevent the solder from flowing into the prohibited area by the concave portion of the first component. Further, since the fillet is formed along the rising surface of the concave portion of the first component located below the second component, the conductor layer on the lower surface of the second component is connected to the conductor surface on the upper surface of the first component. A fillet can be easily formed even by a solder connection type.
[0029]
In this case, if the concave portions are provided on the conductive surfaces of the first component on the lower sides on both sides of the second component, the force due to the surface tension of the solder is balanced, and the second component is positioned at the center of the connection location. Can be soldered.
[Brief description of the drawings]
FIGS. 1A and 1B are a plan view and a side view showing an example of an embodiment of a surface-mounted soldering composite component according to the present invention.
FIG. 2 is an enlarged longitudinal sectional view showing a main part of the surface-mounted soldering composite component of the present example.
FIGS. 3A and 3B are a plan view and a side view of a conventional surface mount soldering composite component.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 1st component 1a Conductive surface 1A Electrical interface 1B Mechanical interface 2 Second component 2a Conductive layer 3 Solder 3a Fillet 4 Mounting hole 5 Depression 5a Rise surface

Claims (4)

第1の部品の上に第2の部品が載せられ、前記第2の部品の下面の導体層が前記第1の部品の上面の導体面に半田付け接続されている面実装半田付け複合部品において、
前記第1の部品の上面の導体面には前記第2の部品の縁部に対応して凹部が設けられ、前記第2の部品の下面の前記導体層は該第2の部品の下に位置する前記第1の部品の前記凹部の立上がり面に沿ったフィレットで半田付け接続されていることを特徴とする面実装半田付け複合部品。
A surface-mounted soldering composite component in which a second component is mounted on a first component, and a conductor layer on a lower surface of the second component is soldered and connected to a conductor surface on an upper surface of the first component. ,
A recess is provided in the conductor surface on the upper surface of the first component corresponding to the edge of the second component, and the conductor layer on the lower surface of the second component is located below the second component. A surface-mounted soldering composite component, wherein the first component is soldered and connected by a fillet along a rising surface of the concave portion of the first component.
前記第1の部品はキャリア用基板であり、前記第2の部品は下面に導電層を有する電子部品であることを特徴とする請求項1に記載の面実装半田付け複合部品。The composite component according to claim 1, wherein the first component is a carrier substrate, and the second component is an electronic component having a conductive layer on a lower surface. 前記第1の部品はプリント回路基板であり、前記第2の部品は下面に導電層を有する電子部品であることを特徴とする請求項1に記載の面実装半田付け複合部品。The composite component according to claim 1, wherein the first component is a printed circuit board, and the second component is an electronic component having a conductive layer on a lower surface. 前記凹部は前記第2の部品の両側の下部の前記第1の部品の前記導電面にそれぞれ設けられていることを特徴とする請求項1〜3のいずれか1項に記載の面実装半田付け複合部品。The surface mount soldering according to any one of claims 1 to 3, wherein the recess is provided on the conductive surface of the first component at a lower portion on both sides of the second component. Composite parts.
JP2003113197A 2003-04-17 2003-04-17 Surface mounted soldered composite component Pending JP2004319847A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019153750A (en) * 2018-03-06 2019-09-12 トヨタ自動車株式会社 Semiconductor device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019153750A (en) * 2018-03-06 2019-09-12 トヨタ自動車株式会社 Semiconductor device
JP7106891B2 (en) 2018-03-06 2022-07-27 株式会社デンソー semiconductor equipment

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