JPH0425862U

JPH0425862U -

Info

Publication number: JPH0425862U
Application number: JP1990067481U
Authority: JP
Priority date: 1990-06-26
Filing date: 1990-06-26
Publication date: 1992-03-02
Anticipated expiration: 2005-06-26
Also published as: JPH0734930Y2

Description

[Brief explanation of the drawing]

第１図は本考案に係る第１の部分メツキ用マス
ク材の概略平面図、第２図は同じく第２のマスク
材の概略平面図、第３図は同じく第３のマスク材
の概略平面図、第４図は第１のマスク材を使用時
の平面図、第５図は第２のマスク材を使用時の平
面図、第６図は第３のマスク材を使用時の平面図
、第７図は第１図のａ−ａ断面図、第８図は第１
図のｂ−ｂ断面図、第９図は第２図のｃ−ｃ断面
図、第１０図は第２図のｄ−ｄ断面図、第１１図
は第３図のｅ−ｅ断面図、第１２図は第３図のｆ
−ｆ断面図、第１３図は従来のマスク材の平面図
、第１４図は従来のマスク材を使用時の平面図、
第１５図は第１４図のｇ−ｇ断面図、第１６図は
第１４図のｈ−ｈ断面図である。図面符号、Ａ……マスク材、１……開口部、２
……アイランド押圧部、３……押圧部支持部、４
……アイランド部、５……ピン、６……外周縁寄
り部分、７……吊りピン、８……先端寄り部分、
９……隅角部、１０……シール材、１１……基板
、１２……マスク板。 FIG. 1 is a schematic plan view of a first partial plating mask material according to the present invention, FIG. 2 is a schematic plan view of a second mask material, and FIG. 3 is a schematic plan view of a third mask material. , FIG. 4 is a plan view when using the first mask material, FIG. 5 is a plan view when using the second mask material, FIG. 6 is a plan view when using the third mask material, and FIG. Figure 7 is a sectional view taken along line a-a in Figure 1, and Figure 8 is a cross-sectional view of Figure 1.
9 is a sectional view taken along line cc in FIG. 2, FIG. 10 is a sectional view taken along line dd in FIG. 2, FIG. 11 is a sectional view taken along line ee in FIG. 3, Figure 12 is f of Figure 3.
-f sectional view, Fig. 13 is a plan view of a conventional mask material, Fig. 14 is a plan view when using a conventional mask material,
15 is a sectional view taken along line gg in FIG. 14, and FIG. 16 is a sectional view taken along line hh in FIG. 14. Drawing code, A... Mask material, 1... Opening, 2
...Island pressing part, 3...Pressing part support part, 4
... Island part, 5 ... Pin, 6 ... Part near the outer periphery, 7 ... Hanging pin, 8 ... Part near the tip,
9...Corner portion, 10...Sealing material, 11...Substrate, 12...Mask plate.

Claims

[Scope of Claim for Utility Model Registration] In mask material A for partial plating in which openings 1 are formed corresponding to the parts of the lead frame that require plating, the ring-shaped inner periphery part is island part 4.
A mask material for partial plating, comprising: an island pressing part 2 that presses a portion 6 near the outer peripheral edge of the opening 3; and a pressing part support part 3 that presses a hanging pin 7 from the inner edge of the opening 3 and continues to the island pressing part 2. In the mask material A for partial plating, in which openings 1 are formed corresponding to the parts of the lead frame that require plating, the ring-shaped inner peripheral edge part presses the outer peripheral edge part 6 of the island part 4, and the outer peripheral edge part presses the outer peripheral edge part 6 of the island part 4. This mask material for partial plating is provided with: an island pressing part 2 which also presses a portion 8 near the tip of a pin 5; and a pressing part support part 3 which presses a hanging pin 7 from the inner edge of the opening 1 and continues to the island pressing part 2. In the mask material A for partial plating in which openings 1 are formed corresponding to the parts of the lead frame that require plating, the island pressing part 2 that presses the corner part 9 of the island part 4 is pressed, and the hanging pin 7 is pressed from the inner edge of the opening 1. , a mask material for partial plating provided near the tip of the pressing part support part 3 following the island pressing part 2.