CN101995985A

CN101995985A - Touch pad master sheet capable of improving electrostatic discharge in manufacturing process

Info

Publication number: CN101995985A
Application number: CN2009101682079A
Authority: CN
Inventors: 李佳益; 王敏书
Original assignee: Elan Microelectronics Corp
Current assignee: Elan Microelectronics Corp
Priority date: 2009-08-14
Filing date: 2009-08-14
Publication date: 2011-03-30

Abstract

The invention relates to a touch pad master sheet capable of improving electrostatic discharge in a manufacturing process, which is characterized by comprising a plurality of touch pads and a communicating wire, wherein the touch pads are separated from one another by planned cutting lines; each touch pad is provided with a pin area for accommodating a plurality of induction wires and a grounded wire; the communicating wire extends to pass through the pin area of each touch pad; all induction wires and the grounded wire in the pin area of each touch pad cross the cutting lines and are connected to the communicating wire. The touch pad master sheet capable of improving the electrostatic discharge in the manufacturing process has the advantages of more effectively reducing the electrostatic discharge and improving space utilization rate.

Description

Can improve the Trackpad master slice of static discharge in the processing procedure

Technical field

The present invention relates to a kind of Trackpad, specifically, is a kind of Trackpad master slice that improves static discharge in the processing procedure.

Background technology

The manufacturing of Trackpad, as shown in Figure 1, the Trackpad of a plurality of proper alignment of preparation on master slice 10 gives cutting and separating more earlier.These Trackpads on master slice 10 there is no lead each other and link to each other.In Fig. 2, last figure is the enlarged drawing that is positioned at Trackpad 12 and 14 borders among Fig. 1, figure below is the enlarged drawing of position 16 wherein, all sensor wires and earth lead that the induction zone of Trackpad 12 extends out all concentrate on lead area 162, planning one line of cut 166 (non-entity) between shading ring (shading ring) lead 164 of itself and Trackpad 14, after line of cut 166 cuttings, Trackpad 12,14 just can be separated from one another.Trackpad 12 can change by the change in voltage or the electric current of sensor wire from lead area 162, measures the state of its induction zone.On known master slice 10,

adjacent Trackpad

12 and 14 lead do not link together, and therefore can cause its current potential difference, and static discharge (Electro Static Discharge takes place in processing procedure easily; ESD), may cause thinner wire fracture or make poor wire connection, shorten the serviceable life of described Trackpad.In order to address this problem, as shown in Figure 1, known gap or the blank space of Trackpad master slice 10 meetings between Trackpad, the interspersed large stretch of conductor 18 of laying forms big limit, makes static past mobile herein.But this technique effect is not good, but also takies the space of Trackpad master slice 10, reduces its space availability ratio.

Therefore known Trackpad master slice exists above-mentioned all inconvenience and problem.

Summary of the invention

Purpose of the present invention is to propose a kind of Trackpad master slice that improves static discharge in the processing procedure.

Another object of the present invention is to propose a kind of Trackpad master slice that improves space availability ratio.

For achieving the above object, technical solution of the present invention is:

A kind of Trackpad master slice that improves static discharge in the processing procedure is characterized in that comprising:

A plurality of Trackpads, the line of cut of being planned is separated, and each described Trackpad has a lead area and holds many sensor wires and earth lead; And

One is communicated with lead, the lead area of each described Trackpad of extend past;

Wherein, all sensor wires of the lead area of each described Trackpad and earth lead are crossed described line of cut and are connected to described connection lead.

The Trackpad master slice that improves static discharge in the processing procedure of the present invention can also be further achieved by the following technical measures.

Aforesaid Trackpad master slice, wherein said connection lead be after the cutting of described line of cut, in order to as the shading ring lead on each described Trackpad.

After adopting technique scheme, the Trackpad master slice that improves static discharge in the processing procedure of the present invention has the following advantages:

1. more can effectively reduce the situation of static discharge.

2. can make the Trackpad master slice more effectively utilize the space arrangement Trackpad, the room for promotion utilization factor.

Description of drawings

Fig. 1 is known Trackpad master slice synoptic diagram;

Fig. 2 is the enlarged drawing on two Trackpad borders among Fig. 1;

Fig. 3 is the Trackpad master slice synoptic diagram according to the embodiment of the invention;

Fig. 4 is the enlarged drawing of the lead area among Fig. 3;

Fig. 5 is Trackpad master slice synoptic diagram according to another embodiment of the present invention; And

Fig. 6 is the enlarged drawing of the lead area among Fig. 5.

Among the figure, 10, Trackpad master slice 12, Trackpad 14, Trackpad 16, two Trackpad adjacents 162, lead area 164, shading ring lead 166, line of cut 18, conductor 20, Trackpad master slice 22, Trackpad 222, pin 24, Trackpad 242, lead area 244, shading ring lead 26, Trackpad 262, lead area 28, Trackpad 282, lead area 30, be communicated with lead 32, line of cut 40, Trackpad master slice 42, Trackpad 422, lead area 44, Trackpad 442, lead area 444, shading ring lead 46, Trackpad 462, pin 48, Trackpad 482, lead area 50, line of cut.

Embodiment

Below in conjunction with embodiment and accompanying drawing thereof the present invention is illustrated further.

Now see also Fig. 3, Fig. 3 is the partial schematic diagram according to the Trackpad master slice of the embodiment of the invention.As shown in the figure, comprise a plurality of

Trackpads

22,24,26 and 28 in the described master slice 20 and come, after line of cut 32 cuttings, each

Trackpad

22,24,26 and 28 can be separated by line of cut 32 divisions of many planning.The same with known technology, all sensor wires and earth lead that the induction zone of Trackpad 22 extends out all concentrate on lead area 222, Fig. 4 is the enlarged drawing of lead area 222, all leads of lead area 222 are all crossed over line of cut 32 and are connected with connection lead 30, and lead 244 is the shading ring lead of Trackpad 24.Same, all leads in Trackpad 24,26 and 28 the lead area 242,262 and 282 are also all crossed over line of cut 32 and are connected with connection lead 30.So, for Trackpad 22,24,26 and 28, leads all on it will be connected to each other through being communicated with lead 30, so all have identical current potential.Be communicated with the lead of all lead area of all Trackpads on the lead 30 polyphone master slices 20, make it on same current potential, therefore the problem of static discharge will be improved.And after processing procedure in, after line of cut 32 cuttings, all Trackpads are just separated from one another, and all leads are through cutting the back and being communicated with lead 30 disconnections in the lead area 222,242,262 and 282 of Trackpad 22,24,26 and 28, all leads will be independent separately, with the known Trackpad 10 of Fig. 1 with indifference.

Fig. 5 is the partial schematic diagram of Trackpad master slice 40 according to another embodiment of the present invention.In master slice 40, comprise a plurality of

Trackpads

42,44,46 and 48 equally and come, after line of cut 50 cuttings, each

Trackpad

42,44,46 and 48 can be separated by line of cut 50 divisions of many planning.Fig. 6 is the enlarged drawing of lead area 422, and all leads of Trackpad 42 all concentrate on lead area 422, and its all leads extend across line of cut 50 and are connected with the shading ring lead 444 of Trackpad 44.Similarly, all leads in Trackpad 44,46 and 48 the lead area 442,462 and 482 are also all crossed over line of cut 50 and are connected with the shading ring lead of another adjacent Trackpad, and the shading ring lead on each Trackpad also has annexation each other, therefore all leads that make Trackpad master slice 40 improve the problem of static discharge on same current potential.And after processing procedure in, after line of cut 50 cutting, Trackpad 42,44,46 and 48 just can be separated from one another, all leads will be independent separately, with the known Trackpad 10 of Fig. 1 with indifference.

Because all leads link together on

Trackpad master slice

20,40, therefore it can be considered as a big limit, not only the area than known conductor 18 is bigger, more can effectively reduce the situation of static discharge, also can save the space that conductor 18 is set, make

Trackpad master slice

20,40 more efficient use space arrangement Trackpads, the room for promotion utilization factor.

Above embodiment is only for the usefulness that the present invention is described, but not limitation of the present invention, person skilled in the relevant technique under the situation that does not break away from the spirit and scope of the present invention, can also be made various conversion or variation.Therefore, all technical schemes that are equal to also should belong to category of the present invention, should be limited by each claim.

Claims

1. Trackpad master slice that can improve static discharge in the processing procedure is characterized in that comprising:

2. the Trackpad master slice is arranged according to claim 1, it is characterized in that, described connection lead is after the cutting of described line of cut, in order to as the shading ring lead on each described Trackpad.