JPH02170455A - Mounting of pin on multilayer ceramic substrate - Google Patents

Mounting of pin on multilayer ceramic substrate

Info

Publication number
JPH02170455A
JPH02170455A JP32326188A JP32326188A JPH02170455A JP H02170455 A JPH02170455 A JP H02170455A JP 32326188 A JP32326188 A JP 32326188A JP 32326188 A JP32326188 A JP 32326188A JP H02170455 A JPH02170455 A JP H02170455A
Authority
JP
Japan
Prior art keywords
paste
ceramic substrate
pin
multilayer ceramic
substrate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP32326188A
Other languages
Japanese (ja)
Inventor
Hiroshi Hirayama
平山 浩士
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Metal Mining Co Ltd
Original Assignee
Sumitomo Metal Mining Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sumitomo Metal Mining Co Ltd filed Critical Sumitomo Metal Mining Co Ltd
Priority to JP32326188A priority Critical patent/JPH02170455A/en
Publication of JPH02170455A publication Critical patent/JPH02170455A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To obtain a multilayer ceramic substrate provided with lead pins efficiently and stably by a method wherein, after the multilayer ceramic substrate has been coated in advance with a solder paste of a gold alloy, the lead pins are arranged, the paste is melted and the pins are bonded. CONSTITUTION:A substrate 12 is formed of Al2O3, AlN or the like; many through holes 12a are made vertically in this substrate so as to be a grid shape; the through holes are filled with an Mo-Mn paste or a W paste; conductors 16 are formed. Then, the surface of the substrate 12 is coated with the Mo-Mn paste or the W paste of 1mum or lower; after that, metallized parts 18 are formed only on the surface of the conductors 16 which have been filled so as to be the grid shape; they are baked at 1300 to 1600 deg.C in a weak reducing atmosphere of H2:N2=1:9. After that, Ni-plated layers 20 with a thickness of 2 to 3mum are applied to the metallized parts 18. After that, a solder paste of an Au alloy such as an Au/12 Ge alloy, an Au/20 Sn is screen-printed on the layers 20; it is baked; solder layers 22 are formed. I/O pins are attached here.

Description

【発明の詳細な説明】 [産業上の利用分野1 本発明は、多層セラミック基板へ、リードピンを接合す
る方法に関する。
DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application 1] The present invention relates to a method of bonding lead pins to a multilayer ceramic substrate.

[従来の技術] 多層セラミック基板へのピン付は方法としては、第5図
(a)に示したようにリードピン1の頂部にA u /
 20 S n合金やAu/12Ge合金ソルダーのボ
ール3を溶融させて一体化させた部品を製作した後、ろ
う付は部にメタライズ処理を施した多層セラミック基板
に重ね合わせ接合する方法が採られていた。
[Prior Art] As a method for attaching pins to a multilayer ceramic substrate, as shown in FIG. 5(a), A u /
After producing an integrated part by melting the balls 3 of 20Sn alloy or Au/12Ge alloy solder, the method used is to braze it by overlapping and joining it to a multilayer ceramic substrate whose parts have been subjected to metallization treatment. Ta.

この方法は、金合金のソルダーボール3をリードピン1
の頂部に溶融させて一体化する際、第6〜7図に示した
黒鉛製のピン付は用油具5を用いて作業する必要がある
ため、極めて煩雑である。
In this method, a gold alloy solder ball 3 is attached to a lead pin 1.
When the graphite pin shown in FIGS. 6 and 7 is melted and integrated on the top of the graphite, it is necessary to use a lubricating tool 5, which is extremely complicated.

また、第5(b)図に示したように金合金ソルダーボー
ル3が溶着後、ビン中心部から位!ずれを起こし不良が
発生するという問題点があった。このために、各種の改
良が重ねられている(例えば、特開昭63−11076
4、実開昭63−77359参照)。
Moreover, as shown in FIG. 5(b), after the gold alloy solder ball 3 is welded, it is located at a certain distance from the center of the bottle! There is a problem in that misalignment occurs and defects occur. For this purpose, various improvements have been made (for example, JP-A-63-11076
4, see Utility Model Application Publication No. 63-77359).

[発明が解決しようとする課題] 本発明は、前記の問題点を解決するために、金合金のソ
ルダーボールを予めピン先端部に溶融させるかわりに、
セラミック基板へ金合金ソルダーペーストを塗布するこ
とによって、効率よく安定してリードピン付き多層セラ
ミック基板を製造する方法を提供することを目的とする
[Problems to be Solved by the Invention] In order to solve the above-mentioned problems, the present invention, instead of melting a gold alloy solder ball to the tip of the pin in advance,
An object of the present invention is to provide a method for efficiently and stably manufacturing a multilayer ceramic substrate with lead pins by applying a gold alloy solder paste to a ceramic substrate.

[課趙を解決するための手段] 本発明の方法では、セラミック基板へのピン付は工程に
おいて、金合金ソルダーペーストを予めセラミック基板
へ塗布した後、リードピンを重ね合わせ、金合金ソルダ
ーペーストを溶融させてリードピンを多層セラミック基
板へ接合する。
[Means for solving the problems] In the method of the present invention, pins are attached to the ceramic substrate in the process by applying gold alloy solder paste to the ceramic substrate in advance, overlapping the lead pins, and melting the gold alloy solder paste. Then, the lead pins are bonded to the multilayer ceramic substrate.

金合金ソルダーペーストを予めセラミック基板へ塗布す
るに際しては、まずセラミック基板上に、格子状のビン
接続位置に対応させてW−Nl法で、すなわちタングス
テンペーストを塗布し焼成した後にニラゲルメツキを施
すことによりメタライズ処理を行う。
When applying the gold alloy solder paste to the ceramic substrate in advance, first apply the tungsten paste on the ceramic substrate using the W-Nl method in correspondence with the grid-shaped bottle connection positions, and then apply nilagel plating after baking. Perform metallization processing.

次にこのメタライズ部に金合金ソルダーペーストをスク
リーン印刷して、ソルダー層を形成する。
Next, a gold alloy solder paste is screen printed on this metallized portion to form a solder layer.

こうして、製作したセラミック基板に金メツキを施した
リードピンを接続する。
In this way, the gold-plated lead pins are connected to the manufactured ceramic substrate.

[作用] 上記のように構成された接合する方法でセラミック基板
へリードピンを接続すると、ソルダーを付けないリード
ピンを使用できる。
[Function] When lead pins are connected to a ceramic substrate by the joining method configured as described above, lead pins without solder can be used.

そして、スクリーン印刷法の長所である高い位置精度を
生かして、ソルダーをセラミック基板に設けることがで
きる。
Then, the solder can be provided on the ceramic substrate by taking advantage of the high positional accuracy that is an advantage of the screen printing method.

さらに、本発明のセラミック基板の製作は、ソルダーを
付けたリードピンの製作よりもはるかに効率良くかつ迅
速に行なわれる。
Furthermore, the fabrication of the ceramic substrate of the present invention is much more efficient and faster than the fabrication of soldered lead pins.

従って、リードピンをセラミック基板に取り付ける工程
が全体的に効率化される。
Therefore, the overall process of attaching the lead pins to the ceramic substrate is made more efficient.

[実施例] 以下に、本発明の実施例を図面に沿って説明するが、こ
の実施例は本発明を制限するものではない。
[Examples] Examples of the present invention will be described below with reference to the drawings, but these examples do not limit the present invention.

第1図および第2図に、本発明の実施例にかかるセラミ
ック基板10を示す、セラミック基板10はアルミナ基
板12に格子状にピン接続部14を設けて構成されてい
る。ピン接続部14には導体16が接続され、また、ピ
ン接続部14は、後で詳述するように、メタライズ処理
部18.20と金合金ソルダーペースト部22とからな
る。
FIGS. 1 and 2 show a ceramic substrate 10 according to an embodiment of the present invention. The ceramic substrate 10 is constructed by providing an alumina substrate 12 with pin connection portions 14 in a grid pattern. A conductor 16 is connected to the pin connection portion 14, and the pin connection portion 14 is made up of a metallized portion 18.20 and a gold alloy solder paste portion 22, as will be described in detail later.

ピン接続部14には、第3図に示すようなAuメツキを
施したソルダー無しリードピン1を取り付けることがで
きる。
A solderless lead pin 1 plated with Au as shown in FIG. 3 can be attached to the pin connection portion 14.

次に、本発明の実施例にかかるセラミック基板10の製
作工程を第4(a)図〜第4(e)図に従い説明する。
Next, the manufacturing process of the ceramic substrate 10 according to the embodiment of the present invention will be explained with reference to FIGS. 4(a) to 4(e).

第4(a)図に示すようにアルミナ基板12をA I 
203、AIN等で作製する。アルミナ基板12には、
格子状にスルーホール12aを設けである0次に、第4
(b)図に示すように、Mo−MnペーストまたはWペ
ーストでスルーホール12a内に導体16を形成する。
As shown in FIG. 4(a), the alumina substrate 12 is
203, AIN, etc. The alumina substrate 12 has
Through-holes 12a are provided in a grid pattern to form the 0th order, the 4th order
(b) As shown in the figure, a conductor 16 is formed in the through hole 12a using Mo-Mn paste or W paste.

次に、第4(C)図に示すように、アルミナ基板12の
表面に1μm以下のMo−MnペーストまたはWペース
トを塗布して、格子状のピン接続位置に対応させてメタ
ライズ部18を設け、1300℃〜1600℃で焼成す
る。尚、焼成はN2:N2=1=9程度の弱還元性雰囲
気で行なわれる。
Next, as shown in FIG. 4(C), Mo-Mn paste or W paste with a thickness of 1 μm or less is applied to the surface of the alumina substrate 12, and metallized portions 18 are provided in correspondence with the grid-like pin connection positions. , fired at 1300°C to 1600°C. Incidentally, the firing is performed in a weakly reducing atmosphere of about N2:N2=1=9.

さらに、第4(d)図に示すように、メタライズ部18
に2〜3μmのN1メツキ層20を形成しておく。
Furthermore, as shown in FIG. 4(d), the metallized portion 18
An N1 plating layer 20 with a thickness of 2 to 3 μm is formed in advance.

こうしてできたメタライズ部18のN1メツキ層20に
、第4(e)図に示すように、A u / 12Ge合
金やA u / 20 S n等のAu合金ソルダーペ
ーストをスクリーン印刷して焼成し、ソルダー層22を
形成する。
As shown in FIG. 4(e), an Au alloy solder paste such as Au/12Ge alloy or Au/20Sn is screen printed on the N1 plating layer 20 of the metallized portion 18 thus formed, and then fired. A solder layer 22 is formed.

このようにして作製されたセラミック基板10には、A
uメツキを施したコバール等の金属で作られた1n10
utピン(以下、I10ビンという)1をソルダー無し
で接続できる。
The ceramic substrate 10 produced in this way has A
1n10 made of metal such as Kovar with U plating
ut pin (hereinafter referred to as I10 pin) 1 can be connected without solder.

K隻亘ユ 80X80mmのAl2O3製の基板上に、WおよびN
lペーストを用いてスクリーン印刷し、1.600ケ所
に1.2X1.2mmのメタライズ部を形成させた。
W and N were placed on a 80x80mm Al2O3 substrate.
Screen printing was performed using l paste to form 1.2 x 1.2 mm metallized portions at 1,600 locations.

その後、このメタライズ部にA u / 20 S n
合金のソルダーペーストを塗布し、厚さ100μmのペ
ースト部を形成させ、焼成させた。
After that, A u / 20 S n is applied to this metallized part.
An alloy solder paste was applied to form a paste portion with a thickness of 100 μm, and fired.

このA LJ / 20 S n合金ペースト部に、第
3図に示した形状の金メツキを施したコバールピンを位
置合せして、ピーク温度340℃、5分間保持させ、ろ
う付けした。コバールピンの寸法はa部の直径0.8m
m、b部の厚さ0.15mm、c部の直径0.3mm、
d部の長さ4.5mmであった。
A gold-plated Kovar pin having the shape shown in FIG. 3 was aligned with this A LJ/20S n alloy paste portion, and the peak temperature was maintained at 340° C. for 5 minutes to braze it. The dimensions of the Kovar pin are 0.8 m in diameter at part a.
m, thickness of part b 0.15 mm, diameter of part c 0.3 mm,
The length of the d portion was 4.5 mm.

こうして製作したセラミック基板は、接合後の強度も十
分であり、I10ピンとしての性能も良好であった。
The ceramic substrate manufactured in this manner had sufficient strength after bonding and had good performance as an I10 pin.

mユ 実施例1と同じ工程に従って製作し、前記Au/ 20
 S n合金のソルダーペーストの代りにAu/ 12
 G eソルダーペーストをメタライズ部に塗布したも
のについても同様の結果が得られた。
mU was manufactured according to the same process as in Example 1, and the Au/20
Au/12 instead of S n alloy solder paste
Similar results were obtained when Ge solder paste was applied to the metallized portion.

[発明の効果] 本発明は、上述のように構成されているので以下に述べ
るような効果を奏する。
[Effects of the Invention] Since the present invention is configured as described above, it produces the following effects.

A u / 20 S n合金やA u / 12 G
 e合金のソルダーボールの加工と、該ソルダーボール
とピンとの位置合わせと溶融接合とからなる従来の工程
が本発明により効率化され、工数の削減が可能となった
。また、ペーストを用いてのスクリーン印刷法の長所で
ある位置精度の向上により、不良率が低下し、品質が向
上しな。
A u/20 Sn alloy and A u/12 G
The present invention streamlines the conventional process of processing e-alloy solder balls, aligning the solder balls and pins, and fusion bonding, making it possible to reduce the number of man-hours. In addition, the improvement in positional accuracy, which is an advantage of screen printing using paste, reduces the defective rate and improves quality.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は、本発明の実施例にかかるセラミック基板の平
面図。 第2図は、第1図のセラミック基板のII−IIに添っ
て取ったWfIWJ図。 第3図は、第1図のセラミック基板に取り付けるビンを
示す側面図。 第4(a)、(b)、(c)、(d)図は、第1図のセ
ラミック基板を製作する工程を示す断面図。 第5(a)、(b)図は、従来のセラミック基板へ取り
付けられる金合金ボール一体化ピンの例を示す側面図。 第6図は、第5(a)、(b)図の金合金ボール一体化
ピンを取り付けるリードピン付は用黒鉛治具を示す平面
図。 第7図は、第6図のリードピン付は用黒鉛治具のVJI
−VJJに沿う断面図 図中、参照数字は次のものを表す。 10・・・セラミック基板、 12・・・アルミナ基板、 14・・・ビン接続部、 ・導体、 ・メタライズ部、 ・N1メツキ層、 ・ソルダー層、
FIG. 1 is a plan view of a ceramic substrate according to an embodiment of the present invention. FIG. 2 is a WfIWJ diagram taken along II-II of the ceramic substrate in FIG. 1. 3 is a side view showing a bottle attached to the ceramic substrate of FIG. 1; FIG. FIGS. 4(a), 4(b), 4(c), and 4(d) are cross-sectional views showing steps for manufacturing the ceramic substrate of FIG. 1. FIGS. 5(a) and 5(b) are side views showing an example of a gold alloy ball integrated pin attached to a conventional ceramic substrate. FIG. 6 is a plan view showing a graphite jig with a lead pin for attaching the gold alloy ball integrated pin shown in FIGS. 5(a) and 5(b). Figure 7 shows the VJI graphite jig with lead pins shown in Figure 6.
- Cross-sectional view along VJJ In the figure, reference numerals represent the following: 10... Ceramic substrate, 12... Alumina substrate, 14... Bin connection part, - Conductor, - Metallized part, - N1 plating layer, - Solder layer,

Claims (1)

【特許請求の範囲】[Claims] 多層セラミック基板へのピン付け工程において、金合金
ソルダーペーストを予め多層セラミック基板へ塗布した
後、リードピンを重ね合わせ、金合金ソルダーペースト
を溶融させてリードピンを多層セラミック基板へ接合す
る方法。
In the process of attaching pins to a multilayer ceramic substrate, a method in which a gold alloy solder paste is applied to the multilayer ceramic substrate in advance, the lead pins are overlapped, and the gold alloy solder paste is melted to join the lead pins to the multilayer ceramic substrate.
JP32326188A 1988-12-23 1988-12-23 Mounting of pin on multilayer ceramic substrate Pending JPH02170455A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP32326188A JPH02170455A (en) 1988-12-23 1988-12-23 Mounting of pin on multilayer ceramic substrate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP32326188A JPH02170455A (en) 1988-12-23 1988-12-23 Mounting of pin on multilayer ceramic substrate

Publications (1)

Publication Number Publication Date
JPH02170455A true JPH02170455A (en) 1990-07-02

Family

ID=18152818

Family Applications (1)

Application Number Title Priority Date Filing Date
JP32326188A Pending JPH02170455A (en) 1988-12-23 1988-12-23 Mounting of pin on multilayer ceramic substrate

Country Status (1)

Country Link
JP (1) JPH02170455A (en)

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