CN111634084A - 一种pcb背钻盖板及其制造方法 - Google Patents

一种pcb背钻盖板及其制造方法 Download PDF

Info

Publication number
CN111634084A
CN111634084A CN202010466839.XA CN202010466839A CN111634084A CN 111634084 A CN111634084 A CN 111634084A CN 202010466839 A CN202010466839 A CN 202010466839A CN 111634084 A CN111634084 A CN 111634084A
Authority
CN
China
Prior art keywords
layer
cover plate
aluminum foil
pcb
parts
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.)
Pending
Application number
CN202010466839.XA
Other languages
English (en)
Inventor
邹向东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Zhongchen Electronic Technology Co ltd
Original Assignee
Guangdong Zhongchen Electronic Technology Co ltd
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 by Guangdong Zhongchen Electronic Technology Co ltd filed Critical Guangdong Zhongchen Electronic Technology Co ltd
Priority to CN202010466839.XA priority Critical patent/CN111634084A/zh
Publication of CN111634084A publication Critical patent/CN111634084A/zh
Pending legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00Layered products comprising a layer of metal
    • B32B15/04Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B32B15/088Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyamides
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00Layered products comprising a layer of metal
    • B32B15/20Layered products comprising a layer of metal comprising aluminium or copper
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/06Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/10Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/18Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/20Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B29/00Layered products comprising a layer of paper or cardboard
    • B32B29/002Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1284Application of adhesive
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00Ancillary operations in connection with laminating processes
    • B32B38/16Drying; Softening; Cleaning
    • B32B38/164Drying
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04Interconnection of layers
    • B32B7/12Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02Non-macromolecular additives
    • C09J11/04Non-macromolecular additives inorganic
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02Non-macromolecular additives
    • C09J11/06Non-macromolecular additives organic
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J123/00Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
    • C09J123/02Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
    • C09J123/04Homopolymers or copolymers of ethene
    • C09J123/06Polyethene
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02Synthetic macromolecular fibres
    • B32B2262/0292Polyurethane fibres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/50Properties of the layers or laminate having particular mechanical properties
    • B32B2307/56Damping, energy absorption
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/70Other properties
    • B32B2307/732Dimensional properties
    • B32B2307/734Dimensional stability
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24Acids; Salts thereof
    • C08K3/26Carbonates; Bicarbonates
    • C08K2003/265Calcium, strontium or barium carbonate
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2207/00Properties characterising the ingredient of the composition
    • C08L2207/06Properties of polyethylene
    • C08L2207/062HDPE

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Laminated Bodies (AREA)

Abstract

本发明涉及PCB盖板技术领域,特别是涉及一种PCB背钻盖板及其制造方法,包括从上至下依次层叠设置的缓冲介质层、纤维纸板层、粘接树脂层和复合铝箔层,所述缓冲介质层涂履于所述纤维纸板层的上表面,所述纤维纸板层和复合铝箔层分别固定于所述粘接树脂层的两端,该PCB背钻盖板,具有良好的板面平整性、机械性能和尺寸稳定性,主要应用于背钻钻孔加工,本产品不仅使得成本大大降低,同时具有易入钻,定位效果好,降低钻针磨损的功效。

Description

一种PCB背钻盖板及其制造方法
技术领域
本发明涉及PCB盖板技术领域,特别是涉及一种PCB背钻盖板及其制造方法。
背景技术
PCB背钻技术是将沉铜后的导通孔中非传输导电层部分采用机械钻孔加工方式去除,以保证保留的部分信号传输稳定性,有利于高速信号传输。PCB背钻技术通常采用高频电子感应原理钻机进行钻孔背钻加工,利用高频电子导通回路由钻针尖部接触盖板(导体)或PCB板开始计算设计下钻的深度。
目前现有的背钻盖板通常是采用铝片、单面覆铜板,但是采用铝片进行背钻钻孔加工,其成本低,但由于铝片表面光滑,易入钻打滑而定位效果差、孔位精度低,产品偏薄,存在与PCB板的贴紧度不足现象,会影响钻孔精度控制,同时铝片导电层较厚且厚度公差较大,造成背钻钻孔控深精度差,目前处于正逐步被市场淘汰中;同时采用单面覆铜板,则上表层为树脂绝缘介质层,易钻针入钻,定位效果好、孔位精度高,但成本过高,是铝片的多倍价格,难以被用户所接受。
因此急需一种新型的PCB背钻盖板解决上述问题。
发明内容
有鉴于此,本发明的目的在于避免现有技术中的不足之处而提供一种PCB背钻盖板,该PCB背钻盖板,具有良好的板面平整性、机械性能和尺寸稳定性,主要应用于背钻钻孔加工,本产品不仅使得成本大大降低,同时具有易入钻,定位效果好,降低钻针磨损的功效。
本发明实施例提供一种PCB背钻盖板,包括从上至下依次层叠设置的缓冲介质层、纤维纸板层、粘接树脂层和复合铝箔层,所述缓冲介质层涂履于所述纤维纸板层的上表面,所述纤维纸板层和复合铝箔层分别固定于所述粘接树脂层的两端。
进一步的,所述缓冲介质层的材料为聚氨酯纤维、酚醛树脂、乙烯基甲酸、三聚丙三醇和三乙醇胺中的任意一种。
进一步的,所述粘接树脂层按重量组分计包括有:高密度聚乙烯26~30份、高压聚乙烯20~25份、线性低密度聚乙烯20~30份、乙烯-醋酸乙烯共聚物15~20份、高抗冲聚苯乙烯10~30份、稳定剂1~2份、二甲基二硫代氨基甲酸锌0.2~0.5份、轻质碳酸钙0.1~0.5份。
进一步的,所述的稳定剂为抗氧化剂、偶联剂、抗老化剂、抗静电剂、热稳定剂中的一种或多种组合。
进一步的,所述复合铝箔层包括从上至下依次层叠设置的尼龙层、粘合层、铝箔层和热封层,所述尼龙层和铝箔层固定于所述粘合层的两端,所述热封层涂履于所述铝箔层的下表面。
进一步的,所述缓冲介质层的硬度范围为70-80邵氏硬度。
进一步的,所述纤维纸板层的厚度为0.011mm至0.029mm。
进一步的,所述粘接树脂层的厚度为0.056mm至0.064mm。
进一步的,所述复合铝箔层的厚度为0.120mm至0.140mm
本发明实施例还提供一种PCB背钻盖板的制造方法,包括有如下步骤:
步骤一:在纤维纸板层表面制备一层缓冲介质层,备用;
步骤二:制备一层复合铝箔层,备用;
步骤三:将步骤一中制备得到的缓冲介质层和步骤二制备得到的复合铝箔层,分别固定于粘接树脂层的两端,即可得到PCB背钻盖板。
与现有技术相比本发明的有益效果如下:由于PCB背钻盖板,从上至下依次层叠设置有缓冲介质层、纤维纸板层、粘接树脂层和复合铝箔层,将复合铝箔层通过粘接树脂层贴于纤维纸板层下端,可以通过纤维纸板层提高复合铝箔层表面的摩擦系数,使得PCB背钻盖板具有良好的板面平整性、机械性能和尺寸稳定性,易入钻,定位效果好,降低钻针磨损的功效,同时纤维纸板层的价格低廉,使得PCB背钻盖板的制作成本大大降低;由于PCB背钻的盖板的下表层为复合铝箔层,复合铝箔具备金属导电层薄且厚度公差小,使得PCB背钻盖板与PCB板贴紧度更好,钻孔控深精度高,同时配合PCB背钻的盖板的上表面的缓冲介质层,能够有效的减小PCB背钻盖板在钻孔过程当中产生的震动,保证PCB背钻盖板在加工过程当中的稳定性。
附图说明
利用附图对发明作进一步说明,但附图中的实施例不构成对本发明的任何限制,对于本领域的普通技术人员,在不付出创造性劳动的前提下,还可以根据以下附图获得其它的附图。
图1是本发明的一种PCB背钻盖板的整体结构示意图。
图2是本发明的一种PCB背钻盖板中复合铝箔层的整体结构示意图。
图3是本发明的一种PCB背钻盖板制造方法的工艺流程。
图中包括有:缓冲介质层1、纤维纸板层2、粘接树脂层3、复合铝箔层4、尼龙层41、粘合层42、铝箔层43、热封层44。
具体实施方式
如图1所示,本发明实施例提供一种PCB背钻盖板,包括从上至下依次层叠设置的缓冲介质层1、纤维纸板层2、粘接树脂层3和复合铝箔层4,所述缓冲介质层1涂履于所述纤维纸板层2的上表面,所述纤维纸板层2和复合铝箔层4分别固定于所述粘接树脂层3的两端,所述纤维纸板层2的厚度为0.011mm至0.029mm,所述粘接树脂层3的厚度为0.056mm至0.064mm,所述复合铝箔层4的厚度为0.120mm至0.140mm。
由于PCB背钻盖板,从上至下依次层叠设置有缓冲介质层、纤维纸板层、粘接树脂层和复合铝箔层,将复合铝箔层通过粘接树脂层贴于纤维纸板层下端,可以通过纤维纸板层提高复合铝箔层表面的摩擦系数,使得PCB背钻盖板具有良好的板面平整性、机械性能和尺寸稳定性,易入钻,定位效果好,降低钻针磨损的功效,同时纤维纸板层的价格低廉,使得PCB背钻盖板的制作成本大大降低;由于PCB背钻的盖板的下表层为复合铝箔层,复合铝箔具备金属导电层薄且厚度公差小,使得PCB背钻盖板与PCB板贴紧度更好,钻孔控深精度高,同时配合PCB背钻的盖板的上表面的缓冲介质层,能够有效的减小PCB背钻盖板在钻孔过程当中产生的震动,保证PCB背钻盖板在加工过程当中的稳定性。
在优选实施例中,所述缓冲介质层1的材料为聚氨酯纤维、酚醛树脂、乙烯基甲酸、三聚丙三醇和三乙醇胺中的任意一种,上述几种缓冲介质层材料的缓冲效果最佳,能够有效的降低钻孔时产生的震动,保证PCB背钻盖板在加工过程当中的稳定性。
在优选实施例中,所述粘接树脂3按重量组分计包括有:高密度聚乙烯26~30份、高压聚乙烯20~25份、线性低密度聚乙烯20~30份、乙烯-醋酸乙烯共聚物15~20份、高抗冲聚苯乙烯10~30份、稳定剂1~2份、二甲基二硫代氨基甲酸锌0.2~0.5份、轻质碳酸钙0.1~0.5份,其中,所述的稳定剂为抗氧化剂、偶联剂、抗老化剂、抗静电剂、热稳定剂中的一种或多种组合。
在优选实施例中,所述复合铝箔层4包括从上至下依次层叠设置的尼龙层41、粘合层42、铝箔层43和热封层44,所述尼龙层41和铝箔层43固定于所述粘合层42的两端,所述热封层44涂履于所述铝箔层43的下表面,通过尼龙层41、粘合层42、铝箔层43和热封层44之间的相互配合,提高复合铝箔层4的稳定性。
在优选实施例中,所述缓冲介质层1的硬度范围为70-80邵氏硬度,本实施例中,若缓冲介质层的硬度过大,则会导致对钻针的阻力,容易产生断针,但是硬度过小,则会降低缓冲介质层1的缓冲效果,起不到缓冲作用。
本发明实施例还提供一种PCB背钻盖板的制造方法,包括有如下步骤:
步骤一:在纤维纸板层2表面制备一层缓冲介质层1,备用;
步骤二:制备一层复合铝箔层4,备用;
步骤三:将步骤一中制备得到的缓冲介质层1和步骤二制备得到的复合铝箔层4,分别固定于粘接树脂层3的两端,即可得到PCB背钻盖板。
下面通过具体实施例对本发明一种PCB背钻盖板及其制备方法做进一步的解释说明:
实施例1
(1)涂履:将缓冲介质层通过喷涂机涂覆在厚度为0.02mm的纤维纸板层上表面,待其干燥、固化后,形成硬度为70邵氏硬度的缓冲介质层,备用;其中,缓冲介质层为聚氨酯纤维。
(2)粘接树脂的制备:取高密度聚乙烯28份、高压聚乙烯23份、线性低密度聚乙烯25份、乙烯-醋酸乙烯共聚物17份、高抗冲聚苯乙烯20份混合,在室温下搅拌,使其充分溶解,然后添加、稳定剂1.5份、二甲基二硫代氨基甲酸锌0.3份、轻质碳酸钙0.3份,在室温下搅拌时期分散均匀,静置消泡。
(3)复合铝箔层的制备:首先将热封层通过喷涂机涂覆在铝箔层下表面,待其干燥、固化后,然后将涂有热封层的铝箔层和尼龙层分别固定于粘接树脂层的上下两端,得到厚度为0.120mm的复合铝箔层,其中热封层为聚乙烯。
(4)PCB背钻盖板的制备:将步骤(2)中制备得到的粘接树脂通过喷涂机涂履在厚度为0.130mm的复合铝箔层上表面,待其干燥、固化后,形成厚度为0.060mm的粘接树脂层,然后将步骤(1)中涂覆有缓冲介质层的纤维纸板层固定于粘接树脂层上,即可得到PCB背钻盖板。
实施例2
(1)涂履:将缓冲介质层通过喷涂机涂覆在厚度为0.011mm的纤维纸板层上表面,待其干燥、固化后,形成硬度为74邵氏硬度的缓冲介质层,备用;其中,缓冲介质层为聚氨酯纤维。
(2)粘接树脂的制备:取高密度聚乙烯26份、高压聚乙烯20份、线性低密度聚乙烯20份、乙烯-醋酸乙烯共聚物15份、高抗冲聚苯乙烯10份混合,在室温下搅拌,使其充分溶解,然后添加、稳定剂1份、二甲基二硫代氨基甲酸锌0.2份、轻质碳酸钙0.1份,在室温下搅拌时期分散均匀,静置消泡。
(3)复合铝箔层的制备:首先将热封层通过喷涂机涂覆在铝箔层下表面,待其干燥、固化后,然后将涂有热封层的铝箔层和尼龙层分别固定于粘接树脂层的上下两端,得到厚度为0.120mm的复合铝箔层,其中热封层为聚乙烯。
(4)PCB背钻盖板的制备:将步骤(2)中制备得到的粘接树脂通过喷涂机涂履在厚度为0.120mm的复合铝箔层上表面,待其干燥、固化后,形成厚度为0.056mm的粘接树脂层,然后将步骤(1)中涂覆有缓冲介质层的纤维纸板层固定于粘接树脂层上,即可得到PCB背钻盖板。
实施例3
(1)涂履:将缓冲介质层通过喷涂机涂覆在厚度为0.029mm的纤维纸板层上表面,待其干燥、固化后,形成硬度为75邵氏硬度的缓冲介质层,备用;其中,缓冲介质层为聚氨酯纤维。
(2)粘接树脂的制备:取高密度聚乙烯30份、高压聚乙烯25份、线性低密度聚乙烯30份、乙烯-醋酸乙烯共聚物20份、高抗冲聚苯乙烯30份混合,在室温下搅拌,使其充分溶解,然后添加稳定剂2份、二甲基二硫代氨基甲酸锌0.5份、轻质碳酸钙0.5份,在室温下搅拌时期分散均匀,静置消泡。
(3)复合铝箔层的制备:首先将热封层通过喷涂机涂覆在铝箔层下表面,待其干燥、固化后,然后将涂有热封层的铝箔层和尼龙层分别固定于粘接树脂层的上下两端,得到厚度为0.140mm的复合铝箔层,其中热封层为聚乙烯。
(4)PCB背钻盖板的制备:将步骤(2)中制备得到的粘接树脂通过喷涂机涂履在厚度为0.140mm的复合铝箔层上表面,待其干燥、固化后,形成厚度为0.064mm的粘接树脂层,然后将步骤(1)中涂覆有缓冲介质层的纤维纸板层固定于粘接树脂层上,即可得到PCB背钻盖板。
实验例:
将实施例1-3以及市场上现有的PCB背钻盖板进行钻孔测试(JIS 06481),测试结果如下表所述:
Figure BDA0002512947460000051
Figure BDA0002512947460000061
实验结论:根据表中数据,可以明显看出,本发明制备的PCB背钻盖板的,抗弯强度高、抗张强度高、粘合强度高,孔壁粗糙度低,各项检测指标均优于现有普通的PCB背钻盖板。
与现有技术相比本发明的有益效果如下:由于PCB背钻盖板,从上至下依次层叠设置有缓冲介质层、纤维纸板层、粘接树脂层和复合铝箔层,将复合铝箔层通过粘接树脂层贴于纤维纸板层下端,可以通过纤维纸板层提高复合铝箔层表面的摩擦系数,使得PCB背钻盖板具有良好的板面平整性、机械性能和尺寸稳定性,易入钻,定位效果好,降低钻针磨损的功效,同时纤维纸板层的价格低廉,使得PCB背钻盖板的制作成本大大降低;由于PCB背钻的盖板的下表层为复合铝箔层,复合铝箔具备金属导电层薄且厚度公差小,使得PCB背钻盖板与PCB板贴紧度更好,钻孔控深精度高,同时配合PCB背钻的盖板的上表面的缓冲介质层,能够有效的减小PCB背钻盖板在钻孔过程当中产生的震动,保证PCB背钻盖板在加工过程当中的稳定性。
最后应当说明的是,以上实施例仅用以说明本发明的技术方案,而非对本发明保护范围的限制,尽管参照较佳实施例对本发明作了详细地说明,本领域的普通技术人员应当理解,可以对本发明的技术方案进行修改或者等同替换,而不脱离本发明技术方案的实质和范围。

Claims (10)

1.一种PCB背钻盖板,其特征在于:包括从上至下依次层叠设置的缓冲介质层、纤维纸板层、粘接树脂层和复合铝箔层,所述缓冲介质层涂履于所述纤维纸板层的上表面,所述纤维纸板层和复合铝箔层分别固定于所述粘接树脂层的两端。
2.如权利要求1所述的一种PCB背钻盖板,其特征在于:所述缓冲介质层的材料为聚氨酯纤维、酚醛树脂、乙烯基甲酸、三聚丙三醇和三乙醇胺中的任意一种。
3.如权利要求2所述的一种PCB背钻盖板,其特征在于:所述粘接树脂层按重量组分计包括有:高密度聚乙烯26~30份、高压聚乙烯20~25份、线性低密度聚乙烯20~30份、乙烯-醋酸乙烯共聚物15~20份、高抗冲聚苯乙烯10~30份、稳定剂1~2份、二甲基二硫代氨基甲酸锌0.2~0.5份、轻质碳酸钙0.1~0.5份。
4.如权利要求3所述的一种PCB背钻盖板,其特征在于:所述的稳定剂为抗氧化剂、偶联剂、抗老化剂、抗静电剂、热稳定剂中的一种或多种组合。
5.如权利要求1所述的一种PCB背钻盖板,其特征在于:所述复合铝箔层包括从上至下依次层叠设置的尼龙层、粘合层、铝箔层和热封层,所述尼龙层和铝箔层固定于所述粘合层的两端,所述热封层涂履于所述铝箔层的下表面。
6.如权利要求1所述的一种PCB背钻盖板,其特征在于:所述缓冲介质层的硬度范围为70-80邵氏硬度。
7.如权利要求1所述的一种PCB背钻盖板,其特征在于:所述纤维纸板层的厚度为0.011mm至0.029mm。
8.如权利要求1所述的一种PCB背钻盖板,其特征在于:所述粘接树脂层的厚度为0.056mm至0.064mm。
9.如权利要求1所述的一种PCB背钻盖板,其特征在于:所述复合铝箔层的厚度为0.120mm至0.140mm。
10.如权利要求1-9中任意一项所述的一种PCB背钻盖板的制造方法,其特征在于:包括有如下步骤:
步骤一:在纤维纸板层表面制备一层缓冲介质层,备用;
步骤二:制备一层复合铝箔层,备用;
步骤三:将步骤一中制备得到的缓冲介质层和步骤二制备得到的复合铝箔层,分别固定于粘接树脂层的两端,即可得到PCB背钻盖板。
CN202010466839.XA 2020-05-28 2020-05-28 一种pcb背钻盖板及其制造方法 Pending CN111634084A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010466839.XA CN111634084A (zh) 2020-05-28 2020-05-28 一种pcb背钻盖板及其制造方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010466839.XA CN111634084A (zh) 2020-05-28 2020-05-28 一种pcb背钻盖板及其制造方法

Publications (1)

Publication Number Publication Date
CN111634084A true CN111634084A (zh) 2020-09-08

Family

ID=72325032

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010466839.XA Pending CN111634084A (zh) 2020-05-28 2020-05-28 一种pcb背钻盖板及其制造方法

Country Status (1)

Country Link
CN (1) CN111634084A (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112267323A (zh) * 2020-10-28 2021-01-26 深圳市柳鑫实业股份有限公司 一种单面铝复合纸盖板及其制备方法
CN112277422A (zh) * 2020-10-28 2021-01-29 烟台柳鑫新材料科技有限公司 一种盖板及其制备方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08290396A (ja) * 1995-04-18 1996-11-05 Risho Kogyo Co Ltd ドリル加工用バックアップボード
US20150072121A1 (en) * 2007-09-28 2015-03-12 Tri-Star Laminates, Inc. Systems and methods for drilling holes in printed circuit boards
CN105599426A (zh) * 2015-12-17 2016-05-25 深圳市柳鑫实业股份有限公司 一种钻孔用盖板及其制备方法
CN107718840A (zh) * 2017-09-14 2018-02-23 烟台柳鑫新材料科技有限公司 一种pcb背钻盖板及其制备方法
CN108070334A (zh) * 2017-12-26 2018-05-25 上海邦中高分子材料有限公司 一种铝塑复合板用粘接树脂
CN111117524A (zh) * 2019-12-30 2020-05-08 河源市普立隆新材料科技有限公司 一种铝天花板用粘接树脂

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08290396A (ja) * 1995-04-18 1996-11-05 Risho Kogyo Co Ltd ドリル加工用バックアップボード
US20150072121A1 (en) * 2007-09-28 2015-03-12 Tri-Star Laminates, Inc. Systems and methods for drilling holes in printed circuit boards
CN105599426A (zh) * 2015-12-17 2016-05-25 深圳市柳鑫实业股份有限公司 一种钻孔用盖板及其制备方法
CN107718840A (zh) * 2017-09-14 2018-02-23 烟台柳鑫新材料科技有限公司 一种pcb背钻盖板及其制备方法
CN108070334A (zh) * 2017-12-26 2018-05-25 上海邦中高分子材料有限公司 一种铝塑复合板用粘接树脂
CN111117524A (zh) * 2019-12-30 2020-05-08 河源市普立隆新材料科技有限公司 一种铝天花板用粘接树脂

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112267323A (zh) * 2020-10-28 2021-01-26 深圳市柳鑫实业股份有限公司 一种单面铝复合纸盖板及其制备方法
CN112277422A (zh) * 2020-10-28 2021-01-29 烟台柳鑫新材料科技有限公司 一种盖板及其制备方法

Similar Documents

Publication Publication Date Title
CN111634084A (zh) 一种pcb背钻盖板及其制造方法
KR100389468B1 (ko) 수지피복 복합체박, 그 제조방법 및 용도
JP5012100B2 (ja) ドリル孔明け用エントリーシート
CN107718840B (zh) 一种pcb背钻盖板及其制备方法
TWI772369B (zh) 可靜態彎折的覆銅板和印刷電路板
CN102825861B (zh) 导热双面挠性覆铜板及其制作方法
CN108541204A (zh) 复合式高遮蔽性薄型化电磁干扰屏蔽膜及其制备方法
TW202216439A (zh) 複合物及由其製成之覆銅積層板
US20130078453A1 (en) Drilling entry board for printed circuit board
CN106433124B (zh) 一种高频、高速印制电路板用含酯类固化剂的无卤树脂组合物
TW200930759A (en) Resin composition and the application thereof
CN106893241A (zh) 一种聚乙烯醇缩醛树脂组合物和涂树脂铜箔
JP4839934B2 (ja) 硬化性樹脂組成物、プリプレグ、基板、金属箔張積層板、樹脂付金属箔及びプリント配線板
CN214046155U (zh) 一种基于喷涂一体结构的覆铜板
JP3329922B2 (ja) 多層プリント配線板用層間接着剤、該接着剤付き銅箔及びこれを用いた多層プリント配線板の製造方法
CN221863160U (zh) 一种新型铝基覆铜板
TW202131785A (zh) 具有高電磁屏蔽功能的高頻覆蓋膜及其製備方法
CN111002679A (zh) 背钻复合盖板及该复合盖板加工工艺
CN112265339B (zh) 一种pcb背钻用盖板及其制备方法
CN211567171U (zh) 一种高强度的石墨烯材料盖垫板
WO2019090918A1 (zh) 印刷线路板及其制作方法
CN215682743U (zh) 一种环保的覆铜板
JP2003281940A (ja) 絶縁樹脂組成物,銅箔付き絶縁材および銅張積層板
CN201341273Y (zh) 一种功能性树脂与金属箔复合物的多层印制线路板
CN210553442U (zh) 环氧酚醛纸玻璃布复合基双面覆铜板

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20200908

RJ01 Rejection of invention patent application after publication