JPS6442731U - - Google Patents
Info
- Publication number
- JPS6442731U JPS6442731U JP13536187U JP13536187U JPS6442731U JP S6442731 U JPS6442731 U JP S6442731U JP 13536187 U JP13536187 U JP 13536187U JP 13536187 U JP13536187 U JP 13536187U JP S6442731 U JPS6442731 U JP S6442731U
- Authority
- JP
- Japan
- Prior art keywords
- punch
- die
- tip
- shows
- protrusion
- 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.)
- Granted
Links
- 238000004080 punching Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 1
Landscapes
- Punching Or Piercing (AREA)
Description
第１図は本考案実施例のパンチをダイに対向さ
せた状態を示し、第２図は突出部の作用を説明す
るための図であり、第３図はタイバーを切断して
いる状態を示し、第４図は本考案のパンチを使用
して製造されるリードフレームの形状を示す。他
方、第５図は従来のパンチ及びその欠点を説明す
るための図であり、第６図は樹脂封止された半導
体装置のパツケージの側面から突出しているアウ
ターリード及びそのアウターリードを従来のパン
チにより切断した状態を示す図である。
１：パンチ、２：ダイ、３：孔部、４：ずれ、
５：パツケージ、６：アウターリード、７：タイ
バー、８：サイドバー、９：突出部、１０：切込
み、１１：パンチの突出部、１２：切り刃部、１
３：傾斜面、１４：パツド、１５：電極部、１６
：サポートバー。
Figure 1 shows the punch according to the embodiment of the present invention facing the die, Figure 2 is a diagram for explaining the action of the protrusion, and Figure 3 shows the tie bar being cut. , FIG. 4 shows the shape of a lead frame manufactured using the punch of the present invention. On the other hand, FIG. 5 is a diagram for explaining a conventional punch and its drawbacks, and FIG. 6 shows an outer lead protruding from the side of a package of a resin-sealed semiconductor device and a conventional punch. It is a figure which shows the state cut by. 1: Punch, 2: Die, 3: Hole, 4: Misalignment,
5: Package cage, 6: Outer lead, 7: Tie bar, 8: Side bar, 9: Projection, 10: Notch, 11: Punch projection, 12: Cutting blade, 1
3: Inclined surface, 14: Pad, 15: Electrode part, 16
: Support bar.
Claims (1)
に設けられ、前記突出部の先端にテーパを付け、
ダイの孔部に対するガイドとしたことを特徴とす
る打抜き加工用パンチ。 A protrusion extending toward the die side is provided at a part of the tip, and the tip of the protrusion is tapered,
A punch for punching, characterized in that it serves as a guide for a hole in a die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987135361U JPH0340420Y2 (en) | 1987-09-03 | 1987-09-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987135361U JPH0340420Y2 (en) | 1987-09-03 | 1987-09-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6442731U true JPS6442731U (en) | 1989-03-14 |
| JPH0340420Y2 JPH0340420Y2 (en) | 1991-08-26 |
Family
ID=31394917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987135361U Expired JPH0340420Y2 (en) | 1987-09-03 | 1987-09-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0340420Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6182724U (en) * | 1984-11-02 | 1986-05-31 |
-
1987
- 1987-09-03 JP JP1987135361U patent/JPH0340420Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6182724U (en) * | 1984-11-02 | 1986-05-31 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0340420Y2 (en) | 1991-08-26 |