CN203872428U

CN203872428U - Circuit board with screen printing offset identification

Info

Publication number: CN203872428U
Application number: CN201420245276.1U
Authority: CN
Inventors: 缪宝香; 张进; 程友萍; 蔡华伦
Original assignee: Tong Yang Optoelectronics (jiangsu) Co Ltd
Current assignee: Tong Yang Optoelectronics (jiangsu) Co Ltd
Priority date: 2014-05-14
Filing date: 2014-05-14
Publication date: 2014-10-08
Anticipated expiration: 2024-05-14

Abstract

The utility model discloses a circuit board with a screen printing offset identification, and belongs to the field of circuit board processing. A waster material area of the circuit board is provided with two same offset control symbols, the offset control symbols comprise standard alignment lines etched on the circuit board, negative tolerance alignment lines etched at the inner sides of the standard alignment lines, and positive tolerance alignment lines etched at the outer sides of the standard alignment lines. The standard alignment lines is at the same line with a side edge in the length direction of a printing ink layer, to be screen-printed on the circuit board, at a corresponding side. According to the utility model, during a screen printing process, and after screen printing is finished, the offset states of the screen-printed printing ink layer can be examined through the offset control symbols, such that whether offset exceeds a client control tolerance scope can be rapidly determined, thus the product screen printing qualification rate is improved, and the screen printing detection efficiency and the economic benefits are improved.

Description

A kind of wiring board with wire mark skew sign

Technical field

The utility model belongs to wiring board manufacture field, is specially a kind of wiring board with wire mark skew sign.

Background technology

General wire mark word only plays mark action, but when local wire mark a slice monoblock baking-type ink is covered in while replacing traditional coverlay on wiring board, client tends to increase this local distance management and control requirement, therefore the general design of ink mass Width extends to form wire and refuses management and control outward, therefore client generally needs the side of this ink mass length direction of management and control to the distance on moulding limit, and the width value of this ink mass, and when making, can there is wire mark shift phenomenon unavoidably.

Utility model content

The purpose of this utility model is to provide a kind of without specific purpose tool, in wire mark process and wire mark can pass through the wiring board of naked eyes fast detecting screen printing ink layer shift state after completing.

The technical scheme that realizes above-mentioned purpose is: a kind of wiring board with screen printing ink layer skew sign, comprise wiring board, the garbage area of wiring board is provided with two identical skew management and control symbols, two skew management and control symbols are arranged on a side for the treatment of wire mark ink layer length direction in the circuit board, and two skew management and control symbols be take the center line for the treatment of wire mark ink layer length direction in the circuit board and are symmetrical arranged as symmetrical centre, skew management and control symbol comprises etching standard pairs of bit line in the circuit board, be etched in the negative common difference pairs of bit line of standard pairs of bit line inner side and the plus tolerance pairs of bit line that is etched in standard pairs of bit line outside, standard pairs of bit line and respective side are treated the same straight line of side of wire mark ink layer length direction in the circuit board, standard pairs of bit line and the distance between negative common difference pairs of bit line of skew management and control symbol equal the inner side offset distance for the treatment of that wire mark ink layer in the circuit board allows, the standard pairs of bit line of skew management and control symbol and the distance between plus tolerance pairs of bit line equal to treat outside offset distance that wire mark ink layer in the circuit board allows and with the distance R sum that is offset side ink overflow in wire mark process for the treatment of wire mark ink layer length direction in the circuit board of management and control symbol homonymy.

When wire mark egative film designs, the general design of this ink mass Width extends to form wire and refuses management and control outward, therefore client generally needs the side of this ink mass length direction of management and control to the distance on moulding limit, because screen printing ink has ink overflow phenomenon, therefore should dwindle in advance certain ink overflow value in design during this ink mass length direction, when actual screen printing ink, this ink mass width is amplified to specification value because of ink overflow like this.

Skew management and control Design of Symbols is corresponding when the inferior copper face layer of aspect in this ink mass, with etching in the circuit board, make, this symbol adds requirement for dwindling the side of the ink layer length direction after ink overflow value and the standard pairs of bit line of skew management and control symbol at same level line, and the normal place of its actual product is that the side of the ink layer length direction after ink overflow is corresponding to the center of this skew management and control symbol.

In wire mark process, confirm that the side of ink layer length direction, in the scope of respective side skew management and control symbol plus-minus tolerance pairs of bit line, makes ink layer wire mark in the margin of tolerance.

After wire mark completes, by naked eyes, detect ink layer in the scope of skew management and control symbol plus-minus tolerance pairs of bit line.

The utility model in wire mark process and wire mark all can to the shift state of screen printing ink layer, check by skew management and control symbol after completing, can judge fast whether skew exceeds client's management and control margin of tolerance.The qualification rate that has improved product wire mark, has improved wire mark detection efficiency and economic benefit.

Accompanying drawing explanation

Fig. 1 is structure chart of the present utility model.

Embodiment

As shown in Figure 1, the utility model comprises wiring board 1, the garbage area of wiring board 1 is provided with two identical skew management and control symbols 2, two skew management and control symbols 2 are arranged on a side for the treatment of ink layer 3 length directions of wire mark on wiring board 1, and two skew management and control symbols 2 be take the center line for the treatment of ink layer 3 length directions of wire mark on wiring board 1 and are symmetrical arranged as symmetrical centre.

Skew management and control symbol 2 comprises the standard pairs of bit line 4 being etched on wiring board 1, the plus tolerance pairs of bit line 6 that is etched in the negative common difference pairs of bit line 5 of standard pairs of bit line 4 inner sides and is etched in standard pairs of bit line 4 outsides, standard pairs of bit line 4 and the same straight line of side for the treatment of the ink layer 3 length direction respective side of wire mark on wiring board 1, the standard pairs of bit line 4 of skew management and control symbol 2 and the distance between negative common difference pairs of bit line 5 equal the inner side offset distance for the treatment of that the ink layer 3 of wire mark on wiring board 1 allows, the standard pairs of bit line 4 of skew management and control symbol 2 and the distance between plus tolerance pairs of bit line 6 equal to treat outside offset distance that the ink layer 3 of wire mark on wiring board 1 allows and with the distance R sum that is offset side ink overflow in wire mark process for the treatment of ink layer 3 length directions of wire mark on wiring board 1 of management and control symbol 2 homonymies.

Claims

1. one kind is offset the wiring board identifying with screen printing ink layer, comprise wiring board, it is characterized in that: the garbage area of wiring board is provided with two identical skew management and control symbols, two skew management and control symbols are arranged on a side for the treatment of wire mark ink layer length direction in the circuit board, and two skew management and control symbols be take the center line for the treatment of wire mark ink layer length direction in the circuit board and are symmetrical arranged as symmetrical centre, skew management and control symbol comprises etching standard pairs of bit line in the circuit board, be etched in the negative common difference pairs of bit line of standard pairs of bit line inner side and the plus tolerance pairs of bit line that is etched in standard pairs of bit line outside, standard pairs of bit line and respective side are treated the same straight line of side of wire mark ink layer length direction in the circuit board, standard pairs of bit line and the distance between negative common difference pairs of bit line of skew management and control symbol equal the inner side offset distance for the treatment of that wire mark ink layer in the circuit board allows, the standard pairs of bit line of skew management and control symbol and the distance between plus tolerance pairs of bit line equal to treat outside offset distance that wire mark ink layer in the circuit board allows and with the distance R sum that is offset side ink overflow in wire mark process for the treatment of wire mark ink layer length direction in the circuit board of management and control symbol homonymy.