JPS62151548U - - Google Patents

Info

Publication number
JPS62151548U
JPS62151548U JP1986040331U JP4033186U JPS62151548U JP S62151548 U JPS62151548 U JP S62151548U JP 1986040331 U JP1986040331 U JP 1986040331U JP 4033186 U JP4033186 U JP 4033186U JP S62151548 U JPS62151548 U JP S62151548U
Authority
JP
Japan
Prior art keywords
lead frame
photoetching
light
lead
plate
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
Application number
JP1986040331U
Other languages
Japanese (ja)
Other versions
JPH0438354Y2 (en
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 filed Critical
Priority to JP1986040331U priority Critical patent/JPH0438354Y2/ja
Publication of JPS62151548U publication Critical patent/JPS62151548U/ja
Application granted granted Critical
Publication of JPH0438354Y2 publication Critical patent/JPH0438354Y2/ja
Expired legal-status Critical Current

Links

Description

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

第１図は、この考案の１実施例を示す図であつ
て、フオトエツチング原板の、リードフレームの
リード先端部に対応する部分を拡大して表した図
であり、第２―１図及び第２―２図は、この考案
を実際に適用した場合の実験例を示す図、第３―
１図及び第３―２図は、従来方法によつた場合の
実験例を示す図である。また第４図は、リードフ
レームのリード先端部及びＩＣパツドの一部を拡
大して示す図、第５図は、従来のフオトエツチン
グ原板の１例を示す部分拡大図である。 １…ＩＣパツド、２…リードフレームのリード
、３…リードフレームのリード先端部に対応する
矩形部分、４…セリフ、５…島部、６…画線部。 FIG. 1 is a diagram showing one embodiment of this invention, and is an enlarged view of a portion of a photoetching original plate corresponding to the lead tip of a lead frame. Figure 2-2 shows an experimental example when this idea is actually applied.
1 and 3-2 are diagrams showing experimental examples using the conventional method. Further, FIG. 4 is an enlarged view showing a part of the lead end portion of the lead frame and an IC pad, and FIG. 5 is a partially enlarged view showing an example of a conventional photoetching original plate. 1... IC pad, 2... Lead of lead frame, 3... Rectangular portion corresponding to the lead tip of lead frame, 4... Serif, 5... Island part, 6... Drawing part.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 製造しようとするリードフレームの形状に対応
して透光・遮光パターンが描画されてなるフオト
エツチング原板において、リードフレームのリー
ド先端部に対応する矩形部分の先端に、その端辺
からわずかの距離を介してさらに島部を描画した
ことを特徴とするリードフレームの製造に使用す
るフオトエツチング原板。 On a photoetching master plate on which a light-transmitting/light-shielding pattern is drawn corresponding to the shape of the lead frame to be manufactured, place a small distance from the edge of the rectangular part corresponding to the lead end of the lead frame. A photoetching original plate used for manufacturing a lead frame, characterized in that an island is further drawn through the photoetching plate.
JP1986040331U 1986-03-18 1986-03-18 Expired JPH0438354Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1986040331U JPH0438354Y2 (en) 1986-03-18 1986-03-18

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1986040331U JPH0438354Y2 (en) 1986-03-18 1986-03-18

Publications (2)

Publication Number Publication Date
JPS62151548U true JPS62151548U (en) 1987-09-25
JPH0438354Y2 JPH0438354Y2 (en) 1992-09-08

Family

ID=30854331

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1986040331U Expired JPH0438354Y2 (en) 1986-03-18 1986-03-18

Country Status (1)

Country Link
JP (1) JPH0438354Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02106744A (en) * 1988-10-17 1990-04-18 Hitachi Cable Ltd Photo-etching mask

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57106128A (en) * 1980-12-24 1982-07-01 Nec Corp Forming method for pattern
JPS58210169A (en) * 1982-06-02 1983-12-07 Kyodo Printing Co Ltd Production of etched article

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57106128A (en) * 1980-12-24 1982-07-01 Nec Corp Forming method for pattern
JPS58210169A (en) * 1982-06-02 1983-12-07 Kyodo Printing Co Ltd Production of etched article

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02106744A (en) * 1988-10-17 1990-04-18 Hitachi Cable Ltd Photo-etching mask

Also Published As

Publication number Publication date
JPH0438354Y2 (en) 1992-09-08

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