CN1285457C - Making process of grinding pad with detection window - Google Patents
Making process of grinding pad with detection window Download PDFInfo
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- CN1285457C CN1285457C CN 02155402 CN02155402A CN1285457C CN 1285457 C CN1285457 C CN 1285457C CN 02155402 CN02155402 CN 02155402 CN 02155402 A CN02155402 A CN 02155402A CN 1285457 C CN1285457 C CN 1285457C
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- grinding pad
- manufacture method
- detecting window
- thermosetting plastics
- transparent thermosetting
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Abstract
The present invention relates to a making process of a grinding pad with a detection window. The method has the following steps: firstly, a mould and transparent thermosetting plastic are provided, wherein the mould is provided with a mould cavity, and the transparent thermosetting plastic is not completely hardened; subsequently, the transparent thermosetting plastic is preembedded into the mould; then, a macromolecule foamed body is injected into the mould cavity of the mould; the macromolecule foamed body and the transparent thermosetting plastic are simultaneously completely hardened; finally, a grinding pad with a detection window is formed after demoulding. In addition, the transparent detection window can also be designed into a shape thick in the center position and thin in the edge position to resist the possible deformation of the grinding pad caused by different materials of the detection window and the other regions after integral forming.
Description
Technical field
The invention relates to the manufacture method of a kind of grinding pad (Polishing Pad), and particularly relevant for a kind of manufacture method with grinding pad of detecting window.
Background technology
For the semiconductor crystal wafer manufacturing of integrated circuit,, impel the trend that lifting depth-to-width ratio (Aspect ratio) is arranged and increase the lead number of plies on the manufacture craft of element in order to improve electronic component density and to reduce production costs.But when forming such multi-layer conductor leads structure, the concavo-convex and degreeof tortuosity of wafer also can become big simultaneously.For the concavo-convex and degreeof tortuosity that reduces wafer uses cmp (Chemical Mechanical Polishing usually, CMP) method is operated, and the method for cmp is at present unique large scale integrated circuit (Very Large SemiconductorIntegration that can provide, VLSI), even super large-scale integration (Ultra Large SemiconductorIntegration, a kind of new technology of ULSI) the comprehensive planarization of manufacture craft (Global Planarization).What propose this technology the earliest is the IBM Corporation of the U.S..IBM Corporation not only develops chemical mechanical milling method, and proposition applied chemistry mechanical milling method is made the damascene (Damascene) of imbedding lead.
Generally speaking, cmp be lapping liquid by outstanding turbid fine particle with relative motion with elasticity, grinding pad that hardness is suitable, act on chip surface and carry out planarization (Planarization).When grinding pad moved at crystal column surface, the particle of contact was crushed on the surface of wafer, by the friction slip between crystal column surface and the particle effect of abrasion was arranged, and ground the rough place of crystal column surface, and then made crystal column surface smooth, smooth.
From the above; certain subregion can be provided with a transparent window usually on the grinding pad; its function is when grinding pad grinds; the user can set by board and see through the grinding situation and abrasion situation that grinding pad was controlled and detected to transparent window, the therefore endpoint detecting (End-Point Detection) that this transparent window can be ground as grinding pad.
Be known on the grinding pad No. 5,605,760, the method for making the detecting window such as United States Patent (USP) and disclose, to describe grinding pad be a kind of method of making slide with solid-state uniform polymeric to an embodiment therein.Include a transparent window and describe grinding pad in another embodiment in other opaque pad, wherein transparent window is by the excellent of the transparent polymer material in the molded abrasive pad or fills in formed.And rod or plug can molded insertion grinding pad in, or in the breach of the grinding pad of after molded operation, just packing into.
From the above, transparent window excellent or plug is inserted when molded in the grinding pad, may cause the contraction between grinding pad and transparent window inconsistent, and then cause transparent window to produce crooked or distortion because of the difference or the other factors of transparent window and grinding pad material.In addition, if be after molded operation, just transparent window to be packed in the breach of grinding pad, may do not cause the lapping liquid seepage because contact is not good between grinding pad and the transparent window, and then have influence on the grinding quality of wafer.
In addition, United States Patent (USP) 5,893, No. 796 a kind of known grinding pads of announcement, it has a transparent window and is set up in the grinding pad.It is one-body molded that transparent window can be used as the solid insert preparation that is overmolded in the grinding pad, made to the material that abrasion have peculiar abrasion performance in this transparent window use.Grinding pad remainder material then has low attrition resistance.
As mentioned above, the grinding pad remainder can slowly grind removal when semiconductor crystal wafer grinds, and transparent window can be removed with lower grinding rate.At last, cause between transparent window and the grinding pad and produce difference in height, wafer causes the surface of wafer to produce defective, thereby has influence on the accuracy of follow-up manufacture craft under uneven grinding situation as a result.And the wear rate of grinding pad is different from the wear rate of transparent window, and the grinding pad when this will cause grinding around the transparent window splits.
Summary of the invention
One of purpose of the present invention is exactly a kind of manufacture method with grinding pad of detecting window to be provided, to have the problem that transparent window produces bending or distortion to improve known method.
Two of purpose of the present invention is exactly in that a kind of manufacture method with grinding pad of detecting window is provided, to solve known method because of the not good lapping liquid leakage problems that causes of contact between grinding pad and the transparent window.
Three of purpose of the present invention is exactly that a kind of manufacture method with grinding pad of detecting window is being provided, and improves so that have the grinding uniformity of the grinding pad of detecting window.
Therefore, the present invention proposes a kind of manufacture method with grinding pad of detecting window, the method at first provides a mould and a transparent thermosetting plastics, wherein mould has a die cavity, and transparent thermosetting plastics is sclerosis fully not, and the material of transparent thermosetting plastics for example is a bright macromolecule material of a full impregnated or a translucent polymer material, and the shape of transparent thermosetting plastics for example is any suitable shapes such as oval, square or circle, and its lateral margin is a male and fomale(M﹠F).Then, in mould, be embedded into transparent thermosetting plastics.Then, in the die cavity of mould, inject a foam polymer precursor, and make the sclerosis fully simultaneously of foam polymer precursor and transparent thermosetting plastics, wherein the material of the foam polymer precursor that is injected for example is polyurethane (PU) foaming body, about the preparation method and the relevant parameter thereof of polyurethane foaming body, the applicant has been disclosed in No. the 91117406th, the Taiwan number of patent application.Afterwards, after mold releasability, promptly form a grinding pad with a detecting window.Wherein, the grinding rate of grinding pad is the grinding rate that equals to detect window.
The present invention reintroduces a kind of manufacture method with grinding pad of detecting window, the method at first provides a mould and a transparent thermosetting plastics, wherein mould has a die cavity, and transparent thermosetting plastics is sclerosis fully not, wherein the material of transparent thermosetting plastics for example is a bright macromolecule material of a full impregnated or a translucent polymer material, and the shape of transparent thermosetting plastics for example is any suitable shapes such as oval, square or circle, and its lateral margin is a male and fomale(M﹠F).Then, in mould, be embedded into this transparent thermosetting plastics.Then, in the die cavity of mould, inject a foam polymer precursor, and treat that foam polymer precursor hardens a little.Wherein, the material of foam polymer precursor for example is polyurethane (PU) foaming body, and about the preparation method and the relevant parameter thereof of polyurethane foaming body, the applicant has been disclosed in No. the 91117406th, the Taiwan number of patent application.Afterwards, inject another macromolecule material layer on the foam polymer precursor in die cavity, wherein foam polymer precursor, macromolecule material layer and transparent thermosetting plastics sclerosis fully simultaneously, and the material of macromolecule material layer for example is polyurethane (PU), silicon rubber (Silicone rubber), poly-butyl rubber (PBR), polyvinyl chloride latex (PVC latex) or polyacrylic latex (PMMAlatex).At this, the hardness of foam polymer precursor is greater than the hardness of macromolecule material layer, and the macromolecule material layer is used as the usefulness of cushion.Afterwards, after mold releasability, promptly form a grinding pad, and this grinding pad is one to have the grinding pad of double-layer structure with a detecting window.Wherein, the grinding rate of grinding pad equals to detect the grinding rate of window.
The present invention proposes a kind of manufacture method with grinding pad of detecting window in addition, the method at first provides a mould and a transparent thermosetting plastics, wherein mould has a die cavity, and transparent thermosetting plastics is sclerosis fully not, and the material of transparent thermosetting plastics for example is a bright macromolecule material of a full impregnated or a translucent polymer material, and the shape of transparent thermosetting plastics for example is any suitable shapes such as oval, square or circle, and its lateral margin is a male and fomale(M﹠F).Then, in mould, be embedded into this transparent thermosetting plastics, and in the lateral margin of transparent thermosetting plastics coating one complete reaction material not, and the complete reaction material for example is not a heat seeking viscose.Then, in the die cavity of mould, inject a foam polymer precursor, and make not that complete reaction material and foam polymer precursor chemistry links, wherein not complete reaction material, transparent thermosetting plastics and foam polymer precursor sclerosis fully simultaneously, at this, the material of foam polymer precursor for example is a polyurethane foaming body, and about the preparation method and the relevant parameter thereof of foaming body, the applicant has disclosed in No. the 91117406th, Taiwan number of patent application.Afterwards, behind the mould demoulding, promptly form a grinding pad with a detecting window.Wherein, the grinding rate of grinding pad equals to detect the grinding rate of window.
In addition, the bottom that above-mentioned formed transparent detecting window also can be designed to transparent detecting window is a curved surface, in other words, thicker and the thinner thickness of its marginal position of the thickness of the center of transparent detecting window, this kind design can be resisted the detecting window of grinding pad and other parts because of the different situation that may can cause deformation after one-body molded of material.
Because the factor that the present invention can be hardened with foam polymer precursor simultaneously by transparent thermosetting plastics, reduce the problem that transparent thermosetting plastics and foam polymer precursor produce the different time sclerosis deformation that produces, produce the phenomenon of deformation or warpage with minimizing grinding pad and transparent window, and then can increase the flatness of grinding pad.
In addition, because the present invention can be coated with a complete reaction material not on transparent thermosetting plastics, and then increase the tackness of transparent thermosetting plastics and foam polymer precursor, can reduce lapping liquid from the thin seepage of seam between transparent thermosetting plastics and the foam polymer precursor simultaneously.And the grinding rate of grinding pad equals the grinding rate of transparent window, can increase the flatness of wafer when grinding.
Moreover because the present invention makes rough shape to increase itself and the contact area of foam polymer precursor in the lateral margin of transparent thermosetting plastics, the contact that therefore can make transparent heat solidity plastics and foam polymer precursor better, tackness is better.In addition, the designer can also change the shape of transparent thermosetting plastics according to design.
For above and other objects of the present invention, feature and advantage can be become apparent, a preferred embodiment cited below particularly, and conjunction with figs. elaborate.
Description of drawings
Fig. 1 to Fig. 4 is the schematic flow sheet that has the manufacture method of the grinding pad of detecting window according to first embodiment of the invention;
Fig. 5 illustrates the lateral margin shape schematic diagram of transparent thermosetting plastics;
The lateral margin that Fig. 6 illustrates transparent thermosetting plastics is coated with not complete reaction material schematic diagram;
Fig. 7 to Figure 11 is the schematic flow sheet that has the manufacture method of the grinding pad of detecting window according to second embodiment of the invention;
The lateral margin that Figure 12 illustrates transparent thermosetting plastics is coated with not complete reaction material schematic diagram;
Figure 13 illustrate transparent thermosetting plastics the center thickness after, and the design diagram of the thinner thickness of marginal position.
Indicate explanation:
100,200: mould 102,202: die cavity
110,210: transparent thermosetting plastics 120,220: foam polymer precursor
140,240: grinding pad 131,231: helicoid
133,233: corrugated surface 135,235: particle face
150,250: heat seeking viscose 222: the macromolecule material layer
The specific embodiment
First embodiment
Fig. 1 to Fig. 4 is the schematic flow sheet that has the manufacture method of the grinding pad of detecting window according to first embodiment of the invention.
At first, please refer to Fig. 1, a mould 100 and a transparent thermosetting plastics 110 are provided, wherein this mould 100 has a die cavity 102, and die cavity 102 can hold object and place in it, and the sclerosis fully of transparent thermosetting plastics 110 this moment.The material of aforesaid transparent thermosetting plastics 110 for example is a bright macromolecule material of a full impregnated or a translucent polymer material, and the material of transparent thermosetting plastics 110 for example is acryl resin (PMMA), polyurethane (PU), polyvinyl chloride (PVC), epoxy resin (Epoxy) or unsaturated polyester (UP) (UP), and the hardness of transparent thermosetting plastics 110 for example is 70 Shore A to 75 Shore D.
Afterwards, please refer to Fig. 2, transparent thermosetting plastics 110 is positioned in the mould 100 in advance, and makes transparent thermosetting plastics 110 can develop the diapire of mould 100, and make transparent thermosetting plastics 110 fixing stability and accuracys to increase follow-up manufacture craft.
Then, please refer to Fig. 3, the designer can inject the die cavity 102 of a foam polymer precursor 120 in mould 100 by method of moulding, and makes foam polymer precursor 120 can coat transparent thermosetting plastics 110, the sclerosis fully simultaneously of foam polymer precursor 120 and transparent thermosetting plastics 110.In the present embodiment, the material of foam polymer precursor 120 polyurethane foaming body for example.In addition, above-mentioned method of moulding comprises that blowing mould is injected in thermoplasticity injection molding, thermosetting injection molding (being generally reaction injection molding), thermoplastic or thermosetting, hot-die is suppressed (pressing mold) or other similar approach.
Particularly, in order to make transparent thermosetting plastics 110 better with the contact of foam polymer precursor 120, the present invention is designed to male and fomale(M﹠F) with the lateral margin of transparent thermosetting plastics 110, and this male and fomale(M﹠F) for example is a helicoid 131, a corrugated surface 133 or a particle face 135 (as shown in Figure 5).This is because if the lateral margin of transparent thermosetting plastics 110 is made male and fomale(M﹠F), can increase the contact area of transparent thermosetting plastics 110 and foam polymer precursor 120, and then increase both tight ness ratings.
In addition, the shape of transparent thermosetting plastics 110 of the present invention can also be required and be designed to ellipse, circle, square or any suitable shape according to reality.In the present embodiment, preferably elliptical shape of transparent thermosetting plastics 110.
Come again, please refer to Fig. 4, treat that foam polymer precursor 120 and transparent thermosetting plastics 110 simultaneously fully after the sclerosis, carries out the action of mould 100 demouldings.After taking out, a grinding pad 140 after will finishing promptly forms grinding pad 140 with a detecting window, wherein transparent thermosetting plastics 110 places are promptly as the usefulness of detecting window, and the grinding rate of whole grinding pad 140 all is consistent, and just the grinding rate of foam polymer precursor 120 equals to detect the grinding rate of window in the grinding pad 140.
In order to make transparent thermosetting plastics 110 better with the tackness of foam polymer precursor 120, therefore the present invention's lateral margin coating last complete reaction material not of also being included in transparent thermosetting plastics 110, this is a complete reaction material heat seeking viscose 150 for example not, as shown in Figure 6.Wherein, the function of heat seeking viscose 150 can make the transparent heat solidity plastics 110 and the chemistry of foam polymer precursor 120 link, and then increases the tackness of transparent thermosetting plastics 110 and foam polymer precursor 120.
Second embodiment
Fig. 7 to Figure 12 is the schematic flow sheet that has the manufacture method of the grinding pad of detecting window according to second embodiment of the invention.At first, please refer to Fig. 7, a mould 200 and a transparent thermosetting plastics 210 are provided, wherein this mould 200 has a die cavity 202, and die cavity 202 can hold object and place in it, and sclerosis fully of transparent thermosetting plastics 210.The material of aforesaid transparent thermosetting plastics 210 for example is a bright macromolecule material of a full impregnated or a translucent polymer material, and the material of transparent thermosetting plastics 210 for example acryl resin (PMMA), polyurethane (PU), polyvinyl chloride (PVC), epoxy resin (EPOXY) or unsaturated polyester (UP) (UP), and the hardness of transparent thermosetting plastics 210 for example is 70 Shore A to 75 Shore D.
Afterwards, please refer to Fig. 8, transparent thermosetting plastics 210 is positioned in the mould 200 in advance, and makes transparent thermosetting plastics 210 can develop the diapire of mould 200, and make transparent thermosetting plastics 210 fixing stability and accuracys to increase follow-up manufacture craft.
Then, please refer to Fig. 9, the designer can inject the die cavity 202 of a foam polymer precursor 220 in mould 200 by method of moulding, and the lateral margin of foam polymer precursor 220 can be contacted with the lateral margin of transparent thermosetting plastics 210, and makes about 3 minutes to 5 minutes of foam polymer precursor 220 sclerosis.Wherein, the material of foam polymer precursor 220 for example is a polyurethane foaming body.In addition, above-mentioned method of moulding comprises that blowing mould is injected in thermoplasticity injection molding, thermosetting injection molding (being generally reaction injection molding), thermoplastic or thermosetting, hot-die is suppressed (pressing mold) or other similar approach.
Come again, please refer to Figure 10, inject another macromolecule material layer 222 on the foam polymer precursor 220 of mould 200 by method of moulding, and the lateral margin of macromolecule material layer 222 can be contacted with the lateral margin of transparent thermosetting plastics 210, and cover foam polymer precursor 220.Then make the sclerosis fully simultaneously of foam polymer precursor 220, transparent thermosetting plastics 210 and macromolecule material layer 222 again.In the present embodiment, the hardness of foam polymer precursor 220 is greater than the hardness of macromolecule material layer 222, therefore macromolecule material layer 222 is used as the usefulness of a cushion, and its material for example is polyurethane (PU), silicon rubber (Silicone rubber), poly-butyl rubber (PBR), polyvinyl chloride latex (PVC latex) or polymethyl methacrylate latex (PMMA latex).Wherein, the hardness of foam polymer precursor 220 is between 30 Shore D to 80 Shore D, and the hardness of macromolecule material layer is between 5 Shore A to 60 Shore A.In addition, above-mentioned method of moulding for example is that blowing mould, hot-die compacting (pressing mold) or other similar approach are injected in thermoplasticity injection molding, thermosetting injection molding (being generally reaction injection molding), thermoplastic or thermosetting.
Particularly, in order to make transparent thermosetting plastics 210 better with the contact of foam polymer precursor 220 and macromolecule material layer 222, the present invention can be designed to male and fomale(M﹠F) with the lateral margin of transparent thermosetting plastics 210, and this male and fomale(M﹠F) for example is a helicoid 131, a corrugated surface 133 or a particle face 135 (as shown in Figure 5).This is because if the lateral margin of transparent thermosetting plastics 210 is made male and fomale(M﹠F), can increase the contact area of transparent thermosetting plastics 210, foam polymer precursor 220 and macromolecule material layer 222, and then increase the tight ness rating that the three is sticked together.
In addition, the shape of transparent thermosetting plastics 210 of the present invention can also be required and be designed to ellipse, circle, square or any suitable shape according to reality.In the present embodiment, preferably elliptical shape of transparent thermosetting plastics 210.
Come again, please refer to Figure 11, treat that foam polymer precursor 220, transparent thermosetting plastics 210 and macromolecule material layer 222 simultaneously fully after the sclerosis, carry out the action of mould 200 demouldings.After taking out, a grinding pad 240 after will finishing promptly forms grinding pad 240 with a detecting window, wherein transparent thermosetting plastics 210 places are promptly as the usefulness of detecting window, and the grinding rate of whole grinding pad 240 all is consistent, and just the grinding rate of foam polymer precursor 220 equals to detect the grinding rate of window in the grinding pad 240.
For the tackness that makes transparent thermosetting plastics 210, foam polymer precursor 220 and macromolecule material layer 222 better, therefore the present invention's lateral margin coating last complete reaction material not of also being included in transparent thermosetting plastics 210, and this not the complete reaction material for example be a heat seeking viscose 250, as shown in figure 12.Wherein, the function of heat seeking viscose 250 can make the chemistry of transparent heat solidity plastics 210, foam polymer precursor 220 and macromolecule material layer 222 link, and then increases the tackness of transparent thermosetting plastics 210, foam polymer precursor 220 and macromolecule material layer 222.
What is particularly worth mentioning is that the transparent detecting window 110,210 in first embodiment and second embodiment can also will become its bottom design to become the bottom (as shown in figure 13) of curved surface.In other words, thicker and the thinner thickness of its marginal position of the thickness of transparent detecting window 110,210 centers, this kind design can resist because of detecting window 110,210 and other parts on the grinding pad 140,240 because of the different situation that may can cause deformation after one-body molded of material.
In sum, the present invention has following advantage at least:
1, the factor that can harden simultaneously by transparent thermosetting plastics and foam polymer precursor of the manufacture method with grinding pad of detecting window of the present invention, reducing between transparent thermosetting plastics and foam polymer precursor the phenomenon that produces deformation or warpage, and then can increase the flatness of grinding pad.
2, the manufacture method with grinding pad of detecting window of the present invention can be coated with one and not finish reaction material on transparent thermosetting plastics, and then increase the tackness of transparent thermosetting plastics and grinding pad, therefore can reduce lapping liquid from the thin seepage of seam between transparent thermosetting plastics and the foam polymer precursor.And the grinding rate of grinding pad equals the grinding rate in transparent window, and crystal column surface produces the chance of defective in the time of can reducing the grinding pad grinding, and then makes crystal column surface more smooth, more smooth.
3, the manufacture method of grinding pad with detecting window of the present invention can be made the lateral margin of transparent thermosetting plastics the shape of male and fomale(M﹠F), increases the contact area of itself and foam polymer precursor, makes contact between the two better.
Though the present invention with a preferred embodiment openly as above; right its is not in order to limiting the present invention, anyly is familiar with this operator, without departing from the spirit and scope of the present invention; when can being used for a variety of modifications and variations, so protection scope of the present invention is as the criterion when looking claims person of defining.
Claims (35)
1, a kind of manufacture method with grinding pad of detecting window, it is characterized in that: this method comprises:
One mould and a transparent thermosetting plastics are provided, and wherein this mould has a die cavity, and the not sclerosis fully of this transparent thermosetting plastics;
In this mould, be embedded into this transparent thermosetting plastics;
In this die cavity of this mould, inject a foam polymer precursor, wherein this foam polymer precursor and this transparent thermosetting plastics sclerosis fully simultaneously;
Behind this mold releasability, promptly form a grinding pad with a detecting window.
2, the manufacture method of grinding pad with detecting window as claimed in claim 1 is characterized in that: the material of this transparent thermosetting plastics be selected from the bright macromolecule material of a full impregnated and a translucent polymer material one of them.
3, the manufacture method of grinding pad with detecting window as claimed in claim 1 is characterized in that: the material of this transparent thermosetting plastics be selected from acryl resin (PMMA), polyurethane (PU), polyvinyl chloride (PVC), epoxy resin (EPOXY) and unsaturated polyester (UP) (UP) one of them.
4, the manufacture method with grinding pad of detecting window as claimed in claim 1, it is characterized in that: the hardness of this transparent thermosetting plastics is 70 Shore A to 75 Shore D.
5, the manufacture method with grinding pad of detecting window as claimed in claim 1, it is characterized in that: the thickness of the center of this transparent thermosetting plastics is thick than the thickness of its marginal position.
6, the manufacture method with grinding pad of detecting window as claimed in claim 1, it is characterized in that: the material of this foam polymer precursor comprises polyurethane (PU) foaming body.
7, the manufacture method of grinding pad with detecting window as claimed in claim 1 is characterized in that: the shape of this transparent thermosetting plastics be selected from ellipse, square and circular one of them.
8, the manufacture method with grinding pad of detecting window as claimed in claim 1, it is characterized in that: the lateral margin of transparent thermosetting plastics is a male and fomale(M﹠F).
9, the manufacture method of grinding pad with detecting window as claimed in claim 8 is characterized in that: this male and fomale(M﹠F) be selected from helicoid, corrugated surface and particle face one of them.
10, the manufacture method with grinding pad of detecting window as claimed in claim 1, wherein the grinding rate of this grinding pad equals the grinding rate of this detecting window.
11, a kind of manufacture method with grinding pad of detecting window, it is characterized in that: this method comprises:
One mould and a transparent thermosetting plastics are provided, and wherein this mould has a die cavity, and the not sclerosis fully of this transparent thermosetting plastics;
In this mould, be embedded into this transparent thermosetting plastics;
In this die cavity of this mould, inject a foam polymer precursor;
Inject another macromolecule material layer on this foam polymer precursor in this die cavity, wherein this foam polymer precursor, this macromolecule material layer and this transparent thermosetting plastics sclerosis fully simultaneously;
Behind this mold releasability, promptly form a grinding pad with a detecting window.
12, the manufacture method of grinding pad with detecting window as claimed in claim 11 is characterized in that: the material of this transparent thermosetting plastics be selected from the bright macromolecule material of a full impregnated and a translucent polymer material one of them.
13, the manufacture method of grinding pad with detecting window as claimed in claim 11 is characterized in that: the material of this transparent thermosetting plastics be selected from acryl resin (PMMA), polyurethane (PU), polyvinyl chloride (PVC), epoxy resin (EPOXY) and unsaturated polyester (UP) (UP) one of them.
14, the manufacture method with grinding pad of detecting window as claimed in claim 11, it is characterized in that: the hardness of this transparent thermosetting plastics is 70 Shore A to 75 Shore D.
15, the manufacture method with grinding pad of detecting window as claimed in claim 11, it is characterized in that: the thickness of the center of this transparent thermosetting plastics is thick than the thickness of its marginal position.
16, the manufacture method with grinding pad of detecting window as claimed in claim 11, it is characterized in that: the material of this foam polymer precursor comprises polyurethane foaming body.
17, the manufacture method of grinding pad with detecting window as claimed in claim 11 is characterized in that: the material of this macromolecule material layer be selected from polyurethane (PU), silicon rubber (Silicone rubber), poly-butyl rubber (PBR), polyvinyl chloride latex (PVC latex) and polymethyl methacrylate latex (PMMA latex) one of them.
18, the manufacture method of grinding pad with detecting window as claimed in claim 11 is characterized in that: the shape of this transparent thermosetting plastics be selected from ellipse, square and circular one of them.
19, the manufacture method with grinding pad of detecting window as claimed in claim 11, it is characterized in that: the lateral margin of this transparent thermosetting plastics is a male and fomale(M﹠F).
20, the manufacture method of grinding pad with detecting window as claimed in claim 19 is characterized in that: this male and fomale(M﹠F) be selected from helicoid, corrugated surface and particle face one of them.
21, the manufacture method with grinding pad of detecting window as claimed in claim 11, it is characterized in that: the hardness of this foam polymer precursor is greater than the hardness of this macromolecule material layer.
22, the manufacture method with grinding pad of detecting window as claimed in claim 21, it is characterized in that: the hardness of this foam polymer precursor is between 30 Shore D to 80 Shore D.
23, the manufacture method with grinding pad of detecting window as claimed in claim 21, it is characterized in that: the hardness of this macromolecule material layer is between 5 Shore A to 60 Shore A.
24, the manufacture method with grinding pad of detecting window as claimed in claim 11, it is characterized in that: the grinding rate of this grinding pad equals the grinding rate of this detecting window.
25, a kind of manufacture method with grinding pad of detecting window, it is characterized in that: this method comprises:
One mould and a transparent thermosetting plastics are provided, and wherein this mould has a die cavity, and the not sclerosis fully of this transparent thermosetting plastics;
In this mould, be embedded into this transparent thermosetting plastics, and in the lateral margin of this transparent thermosetting plastics coating one complete reaction material not;
In this die cavity of this mould, inject a foam polymer precursor, and make this not complete reaction material and binding of this foam polymer precursor chemistry, wherein this complete reaction material, this transparent thermosetting plastics and this foam polymer precursor sclerosis fully simultaneously;
Behind this mold releasability, promptly form a grinding pad with a detecting window.
26, the manufacture method of grinding pad with detecting window as claimed in claim 25 is characterized in that: the material of this transparent thermosetting plastics be selected from the bright macromolecule material of a full impregnated and a translucent polymer material one of them.
27, the manufacture method of grinding pad with detecting window as claimed in claim 25 is characterized in that: this transparent heat solidity plastic material be selected from acryl resin (PMMA), polyurethane (PU), polyvinyl chloride (PVC), epoxy resin (EPOXY) and unsaturated polyester (UP) (UP) one of them.
28, the manufacture method with grinding pad of detecting window as claimed in claim 25, wherein the hardness of this transparent thermosetting plastics is 70 Shore A to 75 Shore D.
29, the manufacture method with grinding pad of detecting window as claimed in claim 25, it is characterized in that: the thickness of the center of this transparent thermosetting plastics is thick than the thickness of its marginal position.
30, the manufacture method with grinding pad of detecting window as claimed in claim 25, it is characterized in that: this foam polymer precursor material comprises polyurethane foaming body.
31, the manufacture method of grinding pad with detecting window as claimed in claim 25 is characterized in that: this not the complete reaction material comprise a heat seeking viscose.
32, the manufacture method of grinding pad with detecting window as claimed in claim 25 is characterized in that: the shape of this transparent thermosetting plastics be selected from ellipse, square and circular one of them.
33, the manufacture method with grinding pad of detecting window as claimed in claim 25, it is characterized in that: the lateral margin of this transparent thermosetting plastics is a male and fomale(M﹠F).
34, the manufacture method of grinding pad with detecting window as claimed in claim 33 is characterized in that: this male and fomale(M﹠F) be selected from helicoid, corrugated surface and particle face one of them.
35, the manufacture method with grinding pad of detecting window as claimed in claim 25, it is characterized in that: the grinding rate of this grinding pad equals the grinding rate of this detecting window.
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| CN 02155402 CN1285457C (en) | 2002-12-06 | 2002-12-06 | Making process of grinding pad with detection window |
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| CN 02155402 CN1285457C (en) | 2002-12-06 | 2002-12-06 | Making process of grinding pad with detection window |
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| CN1285457C true CN1285457C (en) | 2006-11-22 |
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Cited By (1)
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| TWI792225B (en) * | 2020-03-17 | 2023-02-11 | 南韓商Ｓｋｃ索密思股份有限公司 | Polishing pad and method for preparing semiconductor device using same |
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| JP4971028B2 (en) * | 2007-05-16 | 2012-07-11 | 東洋ゴム工業株式会社 | Polishing pad manufacturing method |
| CN102133734B (en) * | 2010-01-21 | 2015-02-04 | 智胜科技股份有限公司 | Grinding pad with detecting window and manufacturing method thereof |
| JP6794464B2 (en) * | 2016-02-26 | 2020-12-02 | アプライド マテリアルズ インコーポレイテッドＡｐｐｌｉｅｄ Ｍａｔｅｒｉａｌｓ，Ｉｎｃｏｒｐｏｒａｔｅｄ | Window in a thin polishing pad |
| US10213894B2 (en) | 2016-02-26 | 2019-02-26 | Applied Materials, Inc. | Method of placing window in thin polishing pad |
| KR101945878B1 (en) * | 2017-07-11 | 2019-02-11 | 에스케이씨 주식회사 | Polishing pad comprising window having similar hardness with polishing layer |
| TWI650202B (en) | 2017-08-22 | 2019-02-11 | 智勝科技股份有限公司 | Polishing pad, manufacturing method of a polishing pad and polishing method |
| CN108453970A (en) * | 2018-03-27 | 2018-08-28 | 成都时代立夫科技有限公司 | A kind of manufacturing method of chemical mechanical polishing pads and products thereof and mold |
| KR20220066285A (en) * | 2019-09-30 | 2022-05-24 | 후지보 홀딩스 가부시키가이샤 | Polishing pad and manufacturing method thereof |
-
2002
- 2002-12-06 CN CN 02155402 patent/CN1285457C/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI792225B (en) * | 2020-03-17 | 2023-02-11 | 南韓商Ｓｋｃ索密思股份有限公司 | Polishing pad and method for preparing semiconductor device using same |
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|---|---|
| CN1506211A (en) | 2004-06-23 |
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