JPS6039193A - Masking plate - Google Patents

Masking plate

Info

Publication number
JPS6039193A
JPS6039193A JP14500183A JP14500183A JPS6039193A JP S6039193 A JPS6039193 A JP S6039193A JP 14500183 A JP14500183 A JP 14500183A JP 14500183 A JP14500183 A JP 14500183A JP S6039193 A JPS6039193 A JP S6039193A
Authority
JP
Japan
Prior art keywords
plated
plate
plating
shape
lead frame
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
JP14500183A
Other languages
Japanese (ja)
Inventor
Kenji Yamamoto
健治 山本
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.)
EEJA Ltd
Original Assignee
Electroplating Engineers of Japan 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 Electroplating Engineers of Japan Ltd filed Critical Electroplating Engineers of Japan Ltd
Priority to JP14500183A priority Critical patent/JPS6039193A/en
Publication of JPS6039193A publication Critical patent/JPS6039193A/en
Pending legal-status Critical Current

Links

Landscapes

  • Electroplating Methods And Accessories (AREA)
  • Lead Frames For Integrated Circuits (AREA)

Abstract

PURPOSE:To improve the masking property for complicated shapes by transferring and indenting the shape of a material to be plated on a plastic plate, and forming a plating soln. supply port having fine bore at a position facing the part to be plated of the material to be plated in said recessed part. CONSTITUTION:The shape of a material 2 to be plated is transferred on the upper surface of a masking plate 1 made of a plastic plate 20, and a recessed part 22 corresponding to the shape is formed. A supply port 28 for supplying a plating soln. A to a position in the recessed part 22 and a tapered opening port 31 communicating with the supply part 28 are machined. The material 2 to be plated is placed on the masking plate 1 through a presser board 26, and cathodized by a cathode 27 which is embedded in the masking plate 1 and faced its bottom surface 32. The supply part 28 is filled with the plating soln. A injected from a nozzle through the opening part 31, and only the limited part is plated with noble metal.

Description

【発明の詳細な説明】 (ハ)技術分野 この発明は、複雑な形状や凹凸のあるメッキ対象物に対
応することが容易で且つマスク性を更に同上させたマス
ク板1%にメッキ対象物のメッキ対象面に微小サイズの
メッキを施すに好2i!lIな微小部分メッキ装置のマ
スク板に関する。
Detailed Description of the Invention (C) Technical field The present invention provides a mask board 1% that can easily handle plated objects with complex shapes and irregularities, and has improved maskability. Good for applying micro-sized plating to the surface to be plated! This invention relates to a mask plate for a micro-partial plating device.

(り従来技術及びその問題点 ′ 従来のマスク板にあっては、メッキ対象物の形状の複雑
さが増すにつれて又そのメッキ部位のサイズが小さくな
るにつれてメッキ部位にシャープ且つ明瞭にメッキを施
すことが困難となシ、特にメッキ対象物がIOリードフ
レームの場合、金その他の貴金属の消費をなるべく抑え
て省資源化を図るためにメッキ部位が微小サイズとなる
傾向があり、そのため種々の対策が講じられている。
(Prior art and its problems) With conventional mask plates, as the complexity of the shape of the plated object increases and the size of the plated area decreases, it becomes difficult to plate the plated area sharply and clearly. Especially when the object to be plated is an IO lead frame, the plated parts tend to be minute in size in order to reduce the consumption of gold and other precious metals as much as possible and conserve resources. It is being taught.

例えば特開昭58−15244号公報に開示されている
マスク板は、第1図で示すようにマスク板1の表面la
側に、プレート状のメッキ対象物2〔以下の説明に於て
はIOリードフレームを「メッキ対象物」の例として説
明する〕の各リードビンの先端部分3をメッキ部位Xと
して把握し、このメッキ部位Xに相応する位置・サイズ
のメッキ液流路4をアイランド部5に対応するマスク部
6を残してその周囲に凹設し、該メッキ液流[4内にメ
ッキ液の供給ロアと排出口8を凹設し、そしてプレート
状のアノード9を底面に一様に設けたものとしている。
For example, the mask plate disclosed in JP-A-58-15244 has a surface la of the mask plate 1 as shown in FIG.
On the side, the tip portion 3 of each lead bin of the plate-shaped plated object 2 (in the following explanation, the IO lead frame will be explained as an example of the "plated object") is grasped as the plating part X, and this plating A plating solution flow channel 4 with a position and size corresponding to the part 8 is recessed, and a plate-shaped anode 9 is uniformly provided on the bottom surface.

このマスク板1の場合メッキに際しては、ノズル〔図示
せず〕から供給ロアに供給されたメッキ液はメッキ液流
路番内に充満し排出口8よシメッキゼツクス〔図示せず
〕へ排出・回収され、供給ロアより排出口8にかけてメ
ッキ液流路4内をメッキ液が流れる間にマスク板1の表
面1a側に当接されているICリードフレーム2の各リ
ードビンの先端部分3のみに触れ貴金属メッキが施され
ることになる。尚、マスク板1の表面la側に当接され
ているICリードフレーム2の面をメッキ対象面10と
する。
In the case of this mask plate 1, during plating, the plating solution supplied from the nozzle (not shown) to the supply lower fills the plating solution channel number and is discharged and collected through the discharge port 8 to the plating number [not shown]. While the plating solution flows in the plating solution flow path 4 from the supply lower to the discharge port 8, only the tip portion 3 of each lead bin of the IC lead frame 2 that is in contact with the surface 1a of the mask plate 1 is touched and precious metal plating is performed. will be applied. Note that the surface of the IC lead frame 2 that is in contact with the surface la side of the mask plate 1 is the surface to be plated 10.

しかしながら、このような従来のマスク板1にあっては
、メッキ対象面10のメッキ部位〔各リードピンの先端
部分3〕が一様にメッキされることとなっていたため、
それ以下のメッキ部位の微小変化に応じ切れない嫌いが
あ多5例えば工0リードフレーム2のゼンデイングする
部分、即ち各リードピンの先端部分3内の更に微小部位
、にのみメッキしたい場合前記従来のようなマスク板1
では、対応が困難であシ又メッキ対象物2のメッキ対象
面10に凹凸がある場合はマスク機能を十分に発揮する
のが余計離しいものである。
However, in such a conventional mask plate 1, the plating area [the tip portion 3 of each lead pin] on the surface 10 to be plated was to be uniformly plated.
For example, if you want to plate only the bending part of the lead frame 2, that is, a more minute part in the tip part 3 of each lead pin, the conventional method is used. Mask board 1
However, it is difficult to deal with this problem, and if the surface 10 of the object 2 to be plated has irregularities, it is even more difficult to fully perform the masking function.

e)発明の目的 この発明は、このような従来の問題点に着目してなされ
たもので、メッキ対象物の形状の複雑さの程度にかかわ
らず又、メッキ対象面に凹凸がある場合にでも極めて容
易に対応でき且つ微小部位へのメッキに際してもマスク
性を更に向上させることのできるマスク板を提供するこ
とを目的としている。
e) Purpose of the Invention The present invention has been made by focusing on such conventional problems, and can be applied regardless of the degree of complexity of the shape of the object to be plated or even when the surface to be plated has unevenness. It is an object of the present invention to provide a mask plate which can be applied extremely easily and which can further improve masking properties even when plating minute parts.

に)発明の構成 この発明のマスク板は上記の目的を達成するため、その
構成を 樹脂板にメッキ対象物の形状が転写参四設され、 その凹部内のメッキ対象物のメッキ部位と相応する位置
に微小径のメッキ液の供給孔が形成されているものとし
ている。
B) Structure of the Invention In order to achieve the above object, the mask plate of the present invention has a configuration in which the shape of the object to be plated is transferred onto a resin plate, and the shape of the object to be plated is placed in the recess corresponding to the plated part of the object to be plated. It is assumed that a small diameter plating solution supply hole is formed at the position.

に)実施例 以下、この発明を図面に基づいて説明する。) Example The present invention will be explained below based on the drawings.

第2図〜第6図は、この発明の一実施例を示す図である
。尚以下の説明に於て、従来と同一乃至類似する部分は
同一符号を以て示しM複説明は省略する。
FIGS. 2 to 6 are diagrams showing an embodiment of the present invention. In the following description, parts that are the same as or similar to the conventional ones are indicated by the same reference numerals, and redundant explanation will be omitted.

樹脂板20を素材とするマスク板1の上面21には、メ
ッキ対象物2〔図示の例ではICリードフレーム〕の形
状を転写することにより前記形状に相応する四部22が
形成されている。
On the upper surface 21 of the mask plate 1 made of a resin plate 20, four parts 22 corresponding to the shape of the plated object 2 (an IC lead frame in the illustrated example) are formed by transferring the shape.

転写に際しては樹脂〃板20を用意して力n熱・軟化す
るもので1ハ衝脂〃板20の材質としてはエポキシ樹脂
、エポキシ樹脂にグラス7アイノ9−を混入したもの、
ベークライト等を採用することができ、その厚さサイズ
としてはメッキ対象物2〔図示の例ではIOリードフレ
ーム〕の厚さにもよるがなるべく薄い方が、アノードと
カン−7ド間の距離を短かくする上で好ましい。
For transfer, a resin plate 20 is prepared and softened by applying force and heat.The material for the resin plate 20 is epoxy resin, an epoxy resin mixed with Glass 7 Aino 9-,
Bakelite, etc. can be used, and its thickness and size will depend on the thickness of the plating target 2 (IO lead frame in the example shown), but the thinner it is, the better the distance between the anode and the can-7 can be. It is preferable to keep it short.

このような樹脂板20を加熱中軟化するには種々の手段
例えば熱圧着板〔図示せず〕を利用することができる。
In order to soften such a resin plate 20 during heating, various means can be used, such as a thermocompression bonding plate (not shown).

又「メッキ対象物」の形状とは平面形状、立体形状、全
体形状、部分形状更にはメッキ対象面10の凹凸面形状
等を含む広概念のものでちゃ、「メッキ対象物」として
図示されたICリードフレーム2の場合、短冊状の全体
平面形状。
In addition, the shape of the "plated object" is a broad concept that includes a planar shape, three-dimensional shape, overall shape, partial shape, and even the uneven surface shape of the surface to be plated 10, etc., and is illustrated as a "plated object". In the case of the IC lead frame 2, the overall planar shape is a rectangular shape.

リードビン部分23.アイランド部分5、アイランド部
分支持用の部分24%棧の部分25等が呈するパターン
及び凹凸形状等がそのままマスク板1の上面に転写され
て凹部22を形成するものである。
Lead bin part 23. The pattern and uneven shape of the island portion 5, the island portion supporting portion 24% and the island portion 25, etc. are transferred as they are to the upper surface of the mask plate 1 to form the recessed portion 22.

このような凹部22の深さt2は、マスク性の向上とい
う点から抑圧板26によって転写される際IOリードフ
レーム2の厚さtlに対し1.≧を意の関係を保つこと
が好ましい。
The depth t2 of such a concave portion 22 is set to be 1.0 mm with respect to the thickness tl of the IO lead frame 2 when being transferred by the suppression plate 26 from the viewpoint of improving maskability. It is preferable to maintain a relationship of ≧.

このマスク板1には、カソード27がICリードフレー
ム2と接するように底面32に臨ませられ、左斜め方向
で一対のものとして埋設されている。
A cathode 27 is placed in the mask plate 1 so as to face the bottom surface 32 so as to be in contact with the IC lead frame 2, and is embedded as a pair diagonally to the left.

四部22の幅サイズはICリードフレーム2を転写する
ことによって得られるサイズに相応するが、転写後I(
1−ドフレーム2を樹脂板20よシ外し易すくするため
更にこのマスク板1を実際に微小部分メッキに使用する
際、メッキ対象物2を四部22内ヘセツトし易すくする
ため、IOリードフレーム2にメッキ、コーティングそ
の他の手段で若干の厚み、例えば0.004〜0.1■
、をつけておくことが望ましく、加えて離型剤を予め施
しておくことも好ましいものである。
The width size of the four parts 22 corresponds to the size obtained by transferring the IC lead frame 2, but after transfer I(
In order to make it easier to remove the lead frame 2 from the resin plate 20, and to make it easier to set the plated object 2 in the four parts 22 when this mask plate 1 is actually used for plating a minute part, the IO lead frame 2 is removed from the resin plate 20. 2. Slightly thicker by plating, coating or other means, e.g. 0.004~0.1■
It is desirable to apply a mold release agent, and it is also preferable to apply a mold release agent in advance.

「転写」に除しては樹脂板20の材質、メッキ対象物2
の厚ざや形状等によシ押圧力、抑圧時間、加熱温度、加
熱時間等を適宜調整するものである。そして凹部22内
の位置にメッキ液への供給孔28が機械力n工され1図
示の例では。
"Transfer" refers to the material of the resin plate 20 and the plated object 2.
The pressing force, suppression time, heating temperature, heating time, etc. are adjusted as appropriate depending on the thickness, shape, etc. In the example shown in FIG. 1, a supply hole 28 for the plating solution is mechanically formed at a position within the recess 22.

IOリードフレーム2のリードビン部分23の各先端に
おけるワイヤーデンディングが施される予定の部位29
に相応させた四部22内の位置に、微小径の供給孔28
が形成されている。
A portion 29 at each tip of the lead bin portion 23 of the IO lead frame 2 where wire endings are to be applied.
A small-diameter supply hole 28 is provided at a position within the four parts 22 corresponding to the
is formed.

尚リードビン部分23の各先端はワイヤーデンディング
処理に備えて予めコイニングカn工が施されて2り、そ
の表面が平滑に押圧されているので、その分四部22内
にあって対応部分が若干盛シ上る状態で転写されること
にな91図中30で示したこの盛)上シ部に前記供給孔
28が形成されるものである。この供給孔28は。
In addition, each tip of the lead bin part 23 has been pre-coined in preparation for the wire ending process, and its surface is pressed smooth, so the corresponding part in the four parts 22 is slightly raised. The supply hole 28 is formed in the upper part of this embankment, indicated by 30 in FIG. This supply hole 28 is.

上記部位29即ちワイヤーボンディングに必要な最小限
の範囲に開孔されれば良い。尚この発明では「微小径」
とされているが、微小径に限定されるものではなく上記
部位29の大小に相応した径が設定されることはもちろ
んである。
The hole may be opened in the above-mentioned portion 29, that is, in the minimum range necessary for wire bonding. In addition, in this invention, "micro diameter"
However, it is needless to say that the diameter is not limited to a minute diameter and is set in accordance with the size of the portion 29.

そして樹脂板20の裏面側にテーパ状の供給口28と連
通するメッキ液噴射用の開口31が形成しである。
An opening 31 for spraying the plating solution is formed on the back side of the resin plate 20 and communicates with the tapered supply port 28 .

次に作用を説明する。Next, the action will be explained.

押圧板26を介してマスク板1上へ当接せしめられてい
るIOリードフレーム2は、マスク板1の底面32に臨
ませて埋設されているカソード27によシ#lA極化さ
れておシ、このとき、ノズル〔図示せず〕よシ噴射され
たメッキ液Aは開口31を経て供給孔28に満ち、10
!/−ドフレーム2のリードビン部分23の先端に設定
されているワイヤーボンディングの予定部位29〔即ち
供給孔28に露呈されている部位〕に接触し限定された
この部位にのみ貴金属メッキが施されることとなる。
The IO lead frame 2, which is brought into contact with the mask plate 1 via the press plate 26, is polarized into #lA by the cathode 27 buried so as to face the bottom surface 32 of the mask plate 1. At this time, the plating solution A sprayed from the nozzle (not shown) passes through the opening 31 and fills the supply hole 28,
! Precious metal plating is applied only to a limited area that contacts the scheduled wire bonding area 29 (i.e., the area exposed to the supply hole 28) set at the tip of the lead bin portion 23 of the lead frame 2. That will happen.

メッキ液Aは、その後順次流下し排出・回収されるもの
である。
The plating solution A is then sequentially flowed down, discharged, and collected.

第7図は他の実施例を示す図である。FIG. 7 is a diagram showing another embodiment.

図示の例では、 +tIg脂板20に転写・形成された
凹部22内、特にその底面32にシール材層40が形成
されている。供給孔28の開孔の前彼いずれかで例えば
ネオツレンゴムなどの如き素材をコーティングすること
によシシール材層40を形成し供給孔28の近辺のマス
ク性を向上させるものである。その他の構成及び作用に
ついては先の実施例と同様につき重複説明を省略する。
In the illustrated example, a sealing material layer 40 is formed inside the recess 22 transferred and formed on the +tIg fat plate 20, particularly on the bottom surface 32 thereof. Before the supply hole 28 is opened, a sealing material layer 40 is formed by coating a material such as neosurene rubber on either side of the supply hole 28 to improve maskability in the vicinity of the supply hole 28. The other configurations and operations are the same as those in the previous embodiment, so redundant explanation will be omitted.

(へ)発明の詳細 な説明してきたように、この発明に係るマスク板は樹脂
板にメッキ対象物の形状が転与・凹設され、その凹部内
のメッキ対象物のメッキ部位と相応する位置に微小径の
メッキ液の供給孔が形成されていることとしたため、マ
スク板上にマスク対象となるメッキ対象物の形状がそつ
〈多そのまま転写され凹設されているので。
(f) As described in detail, the mask plate according to the present invention has a resin plate in which the shape of the object to be plated is transferred and recessed, and the position in the recess corresponds to the plated part of the object to be plated. Since the plating liquid supply hole is formed with a minute diameter in the mask plate, the shape of the plating object to be masked is transferred onto the mask plate as is and is recessed.

メッキ処理の際メッキ対象物を凹部内へ容易・確実に位
置決めすることができ、この位置決め状態に於てメッキ
対象物は移動が全く阻止されるので予め凹部内に開孔さ
れたメッキ液の供給孔とメッキ対象物のメッキ部位との
相対的な位置合わせが確実に行なえるものであシ、メッ
キ部位がいかに減小サイズであっても対する微小サイズ
の供給孔との位置合わせには全く狂いが生ぜず、確実に
位置決め5位置合わせができるという効果がある。
During the plating process, the object to be plated can be easily and reliably positioned in the recess, and in this positioned state, the object to be plated is completely prevented from moving, making it possible to supply the plating solution that has been previously drilled into the recess. The relative alignment between the hole and the plated part of the object to be plated must be ensured, and no matter how small the plated part is, the alignment with the micro-sized supply hole will be completely incorrect. This has the effect that positioning and alignment can be performed reliably without causing any problems.

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

第1図は1部分メッキ装置に用いられているマスク板の
従来例を示す要部概略斜視図。 第2図は、IOリードフレームとこの発明に係るマスク
板を示す概略拡大斜視図、 第3図は、第2図中矢示用−1ll線に沿′)要部拡大
斜視図。 第4図は、第3図中矢示IV−IV線に沿う要部拡大斜
視図、 第5図は、第4図中矢示■−■線に沿う要部拡大断面図
、 第6図は、カソードが埋設されている状況を示す第5同
相等の要部拡大断面図、そして第7図は、他の笑施例を
示す第4同相等の要部拡大斜視図である。 1・・・マスク板 1a・・・マスク板の表面 2・・・プレート状のメッキ物(IOリードフレーム) 10・・・メッキ対象面 X・・・メッキ部位 20・・・樹脂板 21・・・(樹脂板の)上面 22・・・凹部 27・・・カン−P 28・・・供給孔 30・・・盛夛上り部 31・・・開口 40・・・シール材層 第し#図 第5図 第6図
FIG. 1 is a schematic perspective view of the main parts of a conventional example of a mask plate used in a one-part plating apparatus. FIG. 2 is a schematic enlarged perspective view showing an IO lead frame and a mask plate according to the present invention, and FIG. 3 is an enlarged perspective view of essential parts along the line -1ll shown in FIG. 2. 4 is an enlarged perspective view of the main part taken along the line indicated by the arrow IV-IV in Fig. 3, FIG. 5 is an enlarged sectional view of the main part taken along the line indicated by the arrow ■-■ in FIG. FIG. 7 is an enlarged sectional view of the main part of the fifth in-phase etc. showing a situation in which it is buried, and FIG. 7 is an enlarged perspective view of the main part of the fourth in-phase etc. showing another embodiment. DESCRIPTION OF SYMBOLS 1...Mask board 1a...Surface of mask board 2...Plate-shaped plated object (IO lead frame) 10...Plating target surface X...Plating part 20...Resin plate 21... - Upper surface (of the resin plate) 22... Concave portion 27... Can-P 28... Supply hole 30... Embellished portion 31... Opening 40... Sealing material layer ### Figure 5 Figure 6

Claims (1)

【特許請求の範囲】 樹脂板にメッキ対象物の形状が転写・凹設され。 その四相)内のメッキ対象物のメッキ部位と49応する
位置に微小径のメッキ液の供給孔が形成されているマス
ク板。
[Claims] The shape of the object to be plated is transferred and recessed onto the resin plate. A mask plate having minute diameter plating solution supply holes formed at positions corresponding to the plating parts of the plating object in the four phases.
JP14500183A 1983-08-10 1983-08-10 Masking plate Pending JPS6039193A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14500183A JPS6039193A (en) 1983-08-10 1983-08-10 Masking plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14500183A JPS6039193A (en) 1983-08-10 1983-08-10 Masking plate

Publications (1)

Publication Number Publication Date
JPS6039193A true JPS6039193A (en) 1985-02-28

Family

ID=15375152

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14500183A Pending JPS6039193A (en) 1983-08-10 1983-08-10 Masking plate

Country Status (1)

Country Link
JP (1) JPS6039193A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63312994A (en) * 1987-06-16 1988-12-21 Nippon Denso Co Ltd Masking jig for partial plating

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63312994A (en) * 1987-06-16 1988-12-21 Nippon Denso Co Ltd Masking jig for partial plating
JPH0576557B2 (en) * 1987-06-16 1993-10-22 Nippon Denso Co

Similar Documents

Publication Publication Date Title
US4786545A (en) Circuit substrate and method for forming bumps on the circuit substrate
KR20240023575A (en) Method of manufacturing semiconductor device
JPS6039193A (en) Masking plate
JPS6031254A (en) Forming method of mask plate
JP2532075B2 (en) Manufacturing method of film carrier with bump
JP3715337B2 (en) How to create an electrical circuit
JPH0249495A (en) Laminated board
JPS5931882A (en) Method and device for surface treatment in bath
JP3617574B2 (en) Multiple-multi-row lead frame and method of manufacturing semiconductor device using the same
JPS6226449Y2 (en)
JPS6281744A (en) Manufacture of film carrier with bump
JPH01137658A (en) Formation of partial conductive film
JPS5815244A (en) Partial plating device for ic frame
KR910007472B1 (en) Circuit board and manufacture thereof
JP3597402B2 (en) Flux transfer method
JP2001102414A (en) Method for bonding semiconductor chip
JPH08153943A (en) Lead terminal bonding method for circuit board
JPH02106095A (en) Connection of conductor part with insulator and insert member
JP3992917B2 (en) Semiconductor device and semiconductor manufacturing method
JPS6196097A (en) Method and apparatus for partial plating
JPH03239351A (en) Manufacture of lead frame
JPS63105989A (en) Injection plating device
JPS61124596A (en) Partial plating method
JPH1154561A (en) Shape of solder ball of bga-type semiconductor and method for transferring solder ball
JPH02268984A (en) Manufacture of deformed clad material