喷墨打印技术在PCB中的应用前景

文章简要的介绍了喷墨打印技术在PCB工业中的应用前景。从喷墨打印技术在PCB中应用发展来看,首先是在图形转移中应用,然后再推广应用到埋嵌无源元件和全印刷电子产品的的领域上。今后,喷墨打印技术会成为PCB工业生产的主流之一。     

数字喷墨打印技术在PCB抗蚀层制作中的初步研究

随着数字喷墨打印设备和纳米油墨的不断发展,喷墨打印技术在PCB制作中得到了越来越广泛的应用。目前市场上主要包括三个方面的应用：抗蚀层、字符、阻焊。文章通过市场调研,成本评估和工艺能力评估重点研究了喷墨打印技术在线路抗蚀层制作中的应用。结果发现喷墨打印技术相对于传统的线路制作工艺具有一定的成本优势和线路制作能力。     

加速数字喷墨打印技术的开发与应用——寄望于“全印制电子分会”

文章概述了数字喷墨打印技术在PCB工业中的应用前景。它将给PCB工业带来“革命性的”变革与进步,将会成为PCB生产的主流。     

PCB印刷的未来

推广应用喷墨打印技术,将推动着PCB生产加工的革命。 喷墨打印是一种不长的技术,目前还限于个人电脑的塑料盒上来生产便宜的有色的图形。这种技术,对于很多工业市场,包括流体制PCB来说,特     

电子喷墨打印技术促PCB发展

从目前和今后应用和发展的前景来看,全印制电子的喷墨打印技术在PCB中的应用主要表现在以下三大方面：在图形转移中的应用;在埋嵌无源元件中的应用;在直接形成线路和连接的全印制电子（含封装方面）中的应用。这些应用将给PCB工业带来革命性的变革与进步。     

新产品与新技术（4）

一种喷墨打印内层抗蚀图形技术新系统麦德美公司(MacDermid)生产出一种喷墨打印抗蚀油墨,品名CircuitJetTM,作为内层图形制作的抗蚀剂。这项技术是与最新的喷墨设备相配合,油墨有高解像度及UV固化。应用CircuitJetTM喷墨印制内层抗蚀图形,省去了照相底版、贴抗蚀膜或涂膜、曝光、显影等工序。该新产品和整个系统在IPC2007年2月的洛杉矶展览会上有展出。     

喷墨打印技术在PCB中的应用（下）

4数字喷墨打印用油墨 目前在PCB中,喷墨打印用的油墨主要有三大类：（1）抗蚀／抗镀油墨,用于取代传统干膜与湿膜;（2）阻焊、字符（含介质层）等油墨,取代常规的阻焊、字符（介质层／绝缘层）等油墨;（3）直接喷印形成导电图形／线路的金属颗粒油墨（其中纳米级金属颗粒油墨方能胜任低温烧结要求的优质导电的精细图形／导线）。     

印刷电子学的发展

综述了印刷电子学的发展及趋势,着重介绍了喷墨打印技术的新进展及其在印制电路板(PCB)和嵌入式无源元件中的应用,指出了目前印刷电子产品生产过程中尚待解决的问题,预测印刷电子电路(PEC)将是印刷电子学的未来发展方向。     

加速开发和推广应用喷墨打印技术

文章指出,在PCB中采用喷墨打印技术的重要性。     

用于PCB蚀刻线路的数字喷墨打印技术

文章概述了用于PCB蚀刻线路中数字喷墨打印技术的原理和优点。在PCB的图形转移中,数字喷墨打印技术具有加工工序少、周期短和成本低的特点,它将和激光直接成像（LDI）一样成为PCB工业生产的重要方法。     

数字喷墨打印技术在PCB字符工艺中的应用

概述了文字喷墨打印技术的原理及其优点。文字喷印机可明显简化PCB文字工艺流程,提高生产效率,且生产过程中无墨水的浪费,最终体现为生产成本的降低;另外文字喷印机环保无污染,符合绿色环保理念。以上诸多优点将使其成为未来PCB文字工艺的发展方向。     

数字喷墨打印技术给PCB产业带来的机遇与应用

数字喷墨技术已经应用于PCB,并为PCB产业带来新的机遇。文章综述了数字喷墨技术在PCB制造中的应用,包括其主要设备、主要材料和现存的问题。     

Inkjet Printing of a Highly Loaded Palladium Ink for Integrated,Low‐Cost pH Sensors

An inkjet printing process for depositing palladium (Pd) thin films from a highly loaded ink (>14 wt%) is reported. The viscosity and surface tension of a Pd‐organic precursor solution is adjusted using toluene to form a printable and stable ink. A two‐step thermolysis process is developed to convert the printed ink to continuous and uniform Pd films with good adhesion to different substrates. Using only one printing pass, a low electrical resistivity of 2.6 μΩ m of the Pd film is obtained. To demonstrate the electrochemical pH sensing application, the surfaces of the printed Pd films are oxidized for ion‐to‐electron transduction and the underlying layer is left for electron conduction. Then, solid‐state reference electrodes are integrated beside the bifunctional Pd electrodes by inkjet printing. These potentiometric sensors have sensitivities of 60.6 ± 0.1 and 57 ± 0.6 mV pH^?1 on glass and polyimide substrates, and short response times of 11 and 6 s, respectively. Also, accurate pH values of real water samples are obtained by using the printed sensors with a low‐cost multimeter. These results indicate that the facile and cost‐effective inkjet printing and integration techniques may be applied in fabricating future electrochemical monitoring systems for environmental parameters and human health conditions.     

Sol–Gel Assisted Inkjet Hologram Patterning

Hereby, it is presented for the first time a method of producing holographic text and images using inkjet printing. For this purpose, colorless TiO₂ ink with a high refractive index is used and deposited on top of exposed poly(ethylene terephthalate)‐based microembossed paper by an inkjet printer. Nanoscale coating the paper containing printed text or graphics with transparent polymers or lacquers provides an optical effect of selective preservation of the holographic pattern. The resulting image is preserved only at the site of the colorless ink with a high refractive index from an inkjet printer, allowing to quickly generate any image with a holographic effect. Achieving these results has succeeded through the use of a colloidal dispersion of nanocrystalline titania with a refractive index of 1.75 ± 0.08 in the entire visible range, which meets inkjet rheological requirements. It is shown that the diffraction effect and optical transparency in the visible region are fully preserved. For the first time, it is demonstrated the importance of chemically prepared nanomaterials and nanostructures for an application in the field of holography.     

瓷砖装饰用压电喷墨打印头关键技术研究

压电喷墨技术是一种广泛应用于工业数字印刷领域的喷墨打印技术。根据压电陶瓷变形模式不同,压电喷墨可分为挤压式、弯曲式、推动式和剪切式4种驱动原理。该文介绍了4种压电喷墨原理及相关研究方法。有限元分析和流体动力学计算可模拟墨滴生成与飞行的过程,便于研究喷头电学参数和几何尺寸对喷墨性能的影响。并讨论了喷墨打印头的压电元件、喷嘴板等材料优化,以及压电喷墨头研究进展及未来展望。     

Polymer Grafting by Inkjet Printing: A Direct Chemical Writing Toolset

Among all the patterning techniques, inkjet printing has lately become a reliable technique at micrometer scale to produce localized modifications on material surfaces. Printing of polymer on material surface however leads to adsorbed patterns with poor adhesion. To overcome this drawback, a new process combining for the first time inkjet printing and an efficient covalent polymer grafting method was developed. This latter method is based on a photo‐assisted reduction of aryldiazonium salt/acrylate monomer ink, derived from the already published GraftFast process. In order to demonstrate its versatility, this new localized polymer grafting process is here combined as an example with the ligand induced electroless plating (LIEP) process to obtain metal interconnects onto flexible and transparent substrates with excellent mechanical and electrical properties for applications in flexible electronics devices.