JPH01163342U - - Google Patents
Info
- Publication number
- JPH01163342U JPH01163342U JP5979788U JP5979788U JPH01163342U JP H01163342 U JPH01163342 U JP H01163342U JP 5979788 U JP5979788 U JP 5979788U JP 5979788 U JP5979788 U JP 5979788U JP H01163342 U JPH01163342 U JP H01163342U
- Authority
- JP
- Japan
- Prior art keywords
- connecting strip
- support plate
- external leads
- width
- 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.)
- Granted
Links
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Description
第１図は本考案の第一実施例を示すリードフレ
ームの平面図、第２図は第１図に示す第一実施例
を変形した実施例を示すリードフレームの平面図
、第３図は本考案の第二実施例を示すリードフレ
ームの平面図、第４図は従来のリードフレームの
平面図を示す。
２……支持板、３……外部リード、２１……リ
ードフレーム、２２……第１の連結細条、２３…
…第２の連結細条、２４……幅狭部、２５……幅
広部。
FIG. 1 is a plan view of a lead frame showing a first embodiment of the present invention, FIG. 2 is a plan view of a lead frame showing a modification of the first embodiment shown in FIG. A plan view of a lead frame showing a second embodiment of the invention, and FIG. 4 shows a plan view of a conventional lead frame. 2... Support plate, 3... External lead, 21... Lead frame, 22... First connecting strip, 23...
...Second connecting strip, 24...Narrow portion, 25...Wide portion.
Claims (1)
対向する他方の側のそれぞれに配置された複数本
の外部リードと、前記支持板に近い側において前
記複数本の外部リードを並行に連結する第１の連
結細条と、前記支持板から遠い側において前記複
数本の外部リードを並行に連結する第２の連結細
条とを有するリードフレームにおいて、前記第１
の連結細条と前記第２の連結細条はいずれも幅長
が大となる幅広部と幅長が小となる幅狭部とを有
しており、前記第１の連結細条及び前記第２の連
結細条に設けられた前記幅広部と前記幅狭部はそ
れぞれ前記第１の連結細条及び前記第２の連結細
条の延在する方向に交互に配置されていることを
特徴とするリードフレーム。 (2) 複数個の支持板と、該支持板の一方の側及
びこれに対応する他方の側のそれぞれに配置され
た複数本の外部リードと、前記支持板に近い側に
おいて前記複数本の外部リードを並行に連結する
第１の連結細条と、前記支持板に遠い側において
前記複数本の外部リードを並行に連結する第２の
連結細条を有するリードフレームにおいて、前記
複数個の支持板は前記リードフレームの長手方向
に配置されており、前記複数本の外部リードは前
記長手方向に延在しており、前記第１の連結細条
と前記第２の連結細条はそれぞれ幅長が小となる
幅狭部と幅長が大となる幅広部とを有しており、
前記第１の連結細条は、前記リードフレームの短
手方向のほぼ中心近傍を通り前記長手方向に延在
する仮想線のいずれか一方の側の領域で前記幅狭
部となつており、前記仮想線の前記いずれか一方
の側とは反対の側の領域で前記幅広部となつてお
り、前記第１の連結細条の幅狭部に連結された前
記外部リードは前記第２の連結細条の幅広部に連
結され、前記第１の連結細条の幅広部に連結され
た前記外部リードは前記第２の幅狭部に連結され
ていることを特徴とするリードーム。[Claims for Utility Model Registration] (1) A support plate, a plurality of external leads disposed on one side of the support plate and the other side opposite thereto, and a plurality of external leads disposed on the side near the support plate. A lead frame having a first connecting strip that connects the plurality of external leads in parallel, and a second connecting strip that connects the plurality of external leads in parallel on a side far from the support plate, Said first
Both the connecting strip and the second connecting strip have a wide part where the width is large and a narrow part where the width is small. The wide portions and the narrow portions provided in the second connecting strips are arranged alternately in the extending direction of the first connecting strip and the second connecting strip, respectively. lead frame. (2) a plurality of support plates, a plurality of external leads disposed on one side of the support plate and the corresponding other side, and a plurality of external leads disposed on the side near the support plate; In a lead frame having a first connecting strip that connects the leads in parallel, and a second connecting strip that connects the plurality of external leads in parallel on a side far from the support plate, the plurality of support plates are arranged in the longitudinal direction of the lead frame, the plurality of external leads extend in the longitudinal direction, and the first connecting strip and the second connecting strip each have a width. It has a narrow part where the width is small and a wide part where the width is large,
The first connecting strip is the narrow portion in a region on either side of an imaginary line passing substantially near the center of the lead frame in the lateral direction and extending in the longitudinal direction, and The wide portion is in a region opposite to the one side of the imaginary line, and the external lead connected to the narrow portion of the first connecting strip is connected to the second connecting strip. The lead dome is characterized in that the external lead connected to the wide portion of the strip and the wide portion of the first connecting strip is connected to the second narrow portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5979788U JPH0642347Y2 (en) | 1988-05-07 | 1988-05-07 | Lead frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5979788U JPH0642347Y2 (en) | 1988-05-07 | 1988-05-07 | Lead frame |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01163342U true JPH01163342U (en) | 1989-11-14 |
| JPH0642347Y2 JPH0642347Y2 (en) | 1994-11-02 |
Family
ID=31285537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5979788U Expired - Lifetime JPH0642347Y2 (en) | 1988-05-07 | 1988-05-07 | Lead frame |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0642347Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013149885A (en) * | 2012-01-23 | 2013-08-01 | Dainippon Printing Co Ltd | Lead frame for manufacturing semiconductor device and method of manufacturing semiconductor device |
-
1988
- 1988-05-07 JP JP5979788U patent/JPH0642347Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013149885A (en) * | 2012-01-23 | 2013-08-01 | Dainippon Printing Co Ltd | Lead frame for manufacturing semiconductor device and method of manufacturing semiconductor device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0642347Y2 (en) | 1994-11-02 |
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