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1. 发明申请

US20080283408A1 Aluminum Substrate for Printed Circuits, Manufacturing Method Thereof, Printed Circuit Board, and Manufacturing Method Thereof 审中-公开
标题翻译：印刷电路用铝基板，其制造方法，印刷电路板及其制造方法
公开(公告)号：US20080283408A1
公开(公告)日：2008-11-20
申请号：US11628991
申请日：2005-06-10
申请人： Kazuyoshi Nishizawa
发明人： Kazuyoshi Nishizawa
IPC分类号： C25D9/00
CPC分类号： H05K3/44 , H05K1/053 , H05K1/056 , H05K2203/0315 , H05K2203/1105
摘要： A method of manufacturing an aluminum substrate for printed circuits, comprises an oxide layer forming step and a heat-drying step. At the oxide layer forming step, an anodic oxide layer is formed on at least one surface of an aluminum plate by anodizing the aluminum plate in an electrolytic solution of phosphoric acid concentration: 3 to 20 mass % and bath temperature: not less than 25° C. but less than 40° C. At the heat-drying step, the anodic oxide layer is dried by heating it at 150 to 300° C. for 0.5 hour or more. According to this method, a proper oxide layer can be formed, resulting in an aluminum substrate for printed circuits capable of enhancing adhesiveness to a resin plate.
摘要翻译：制造印刷电路用铝基板的方法包括氧化物层形成步骤和加热干燥步骤。在氧化物层形成工序中，通过在磷酸浓度为3〜20质量％的电解液中对铝板进行阳极氧化，在铝板的至少一个表面上形成阳极氧化层，浴温：25℃以上 C.但小于40℃。在加热干燥步骤中，通过在150-300℃加热0.5小时或更长时间将阳极氧化层干燥。根据该方法，可以形成适当的氧化物层，得到能够提高与树脂板的粘合性的印刷电路用铝基板。

2. 发明授权

US06378338B1 Method for producing magnetic disk substrates 失效
标题翻译：磁盘基板的制造方法
公开(公告)号：US06378338B1
公开(公告)日：2002-04-30
申请号：US09385782
申请日：1999-08-30
申请人： Kurata Awaya , Kazuyoshi Nishizawa , Kiyoshi Tada
发明人： Kurata Awaya , Kazuyoshi Nishizawa , Kiyoshi Tada
IPC分类号： G11B566
CPC分类号： G11B5/8404 , C03C17/22 , C03C2217/283 , C03C2218/31 , C03C2218/32 , C23C18/1689 , C23C18/1893
摘要： Magnetic disk substrates are produced by subjecting glass substrates to at least steps of degreasing, etching, sensitization with tin chloride, activation and sensitivity-enhancing treatment in that order, then plating the pretreated substrates with a nickel/phosphorus film, and thereafter polishing the plated substrates. In the process, the substrates being processed are washed with hot pure water at a temperature of not lower than 50° C. for a period of from 20 to 90 seconds, after the sensitization step but before the activation step, and heated at a temperature of not lower than 70° C. for a period of from 5 to 100 minutes, after the sensitization step but before the nickel/phosphorus-plating step.
摘要翻译：磁盘基板是通过使玻璃基板至少进行脱脂，蚀刻，氯化锡敏化，激活和灵敏度增强处理的步骤，然后用镍/磷膜对预处理的基板进行电镀，然后研磨镀层底物。在此过程中，处理过的基材在致敏步骤之后激活步骤之前，在不低于50℃的温度下用热纯水洗涤20至90秒，并在温度下加热在感光步骤之后，但在镍/磷镀覆步骤之前，不低于70℃，时间为5至100分钟。

3. 发明授权

US06258458B1 Magnetic disk substrate 失效
标题翻译：磁盘基板
公开(公告)号：US06258458B1
公开(公告)日：2001-07-10
申请号：US09362973
申请日：1999-07-29
申请人： Kurata Awaya , Kazuyoshi Nishizawa , Kiyoshi Tada
发明人： Kurata Awaya , Kazuyoshi Nishizawa , Kiyoshi Tada
IPC分类号： B32B1706
CPC分类号： B32B17/06 , C03C17/06 , C03C2217/27 , C03C2218/32
摘要： A provision of a magnetic disk substrate using, as a plated substrate, glass with high hardness in place of aluminum. The magnetic disk substrate is small-sized, can stand against an impact when it is carried, and avoids leaving struck damages (head snap) even if it is used for recent note- or mobile-type computers having a head which is located as closely as possible to the substrate. The magnetic disk substrate comprises forming a nickel/phosphorus coating with a film thickness of 8 &mgr;m-20 &mgr;m or less on crystallized glass with a roughness Ra of 0.05 to 0.5 &mgr;m, the roughness being measured by a tracer and contact type roughness meter after the glass is ground (lapped) and polishing the nickel/phosphorus coating to a depth of 3 &mgr;m or more in a polishing process with the thickness of the plating film left unremoved being 5 &mgr;m or more.
摘要翻译：使用具有高硬度的玻璃代替铝的作为电镀基板的磁盘基板的设置。磁盘基板尺寸小，可以在承载时抵抗冲击，并且避免留下撞击损坏（头部卡扣），即使它用于最近的笔记本或移动式计算机，其头部位于紧密的位置尽可能地与基底。磁盘基板包括在结晶玻璃上形成厚度为8mum-20μm或更小的镍/磷涂层，其粗糙度Ra为0.05-0.5μm，粗糙度通过示踪剂和接触型粗糙度仪测量在抛光过程中将玻璃研磨（研磨）并抛光镍/磷涂层至3μm或更深的深度，镀膜的厚度不得超过5μm或更大。

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