problems of the composite generation in electronics laminates

discusses the use of glass silk-polymer composite materials for printed circuit board bases. the optimisation of wetting properties, dimensioning of the laminate, and solder bath durability present special problems. the causes of laminate distortions are listed. describes how laminates with a high chemical and thermal durability may be pr..

pc boards for penny-pinchers

describes the method of silk-screen printing and its application to making printed circuit boards for the electronics hobbyist

front contacts for large area high efficiency cu/sub 2/s-cds solar cells

,

na/sup +/ and li/sup +/ nasicon superionic conductors thick films

for microionic applications, superionic conductors have been elaborated in the form of thick films, using silk-screen printable powders. na/sub 3/zr/sub 2/si/sub 2/p/sub 12/, na/sub 3.1/zr/sub 1.55/si/sub 2.3/p/sub 0.7/o/sub 11/ and li/sub 0.8/zr/sub 1.8/ta/sub 0.2/(po/sub 4/)/sub 3/ compositions are synthesized by a sol-gel process invol..

late entry by cad into pcb production

describes gerber's pc800 model 3 control system. this system's basic task is to generate artwork negatives or positives from which the photoplotters can make the phototools for pcb manufacture. but, being a computer, it is capable of far more functions and is used to produce numerical control machine tapes, drill drawings, component lists..

enduser searching' a study of manual vs. online searching by endusers and the role of the intermediary

in order to increase their knowledge of the efficiency and effectiveness of student end user searching of computerized databases, the authors conducted a comparative study. through this study they hoped to answer several questions that need to be considered in planning an extensive integrated program of end user searching. first, can stud..

single-sided printed circuit boards-technological choice from aspects of quality and economy

the production of printed circuit boards is described in detail. the silk-screen process is in general use for boards in which conductors are not less than 0.4 mm wide, otherwise photographic methods are employed. the many manufacturing stages make the handling and possible automation very important, economical. the quality control system..

fine-line multilayer screen printing how to do the job better

screen printing, once referred to as silk screen printing, is an ancient graphic art form. practitioners in the electronics industry have adapted and incorporated this art form into the process of fabricating hybrid circuits and components. the need to print finer multilayer circuits has pushed the industry. as the screening process impro..

farewell to that sinking feeling (kitchenware distributor)

c.m. woolley in boreham wood imports and distributes kitchen- and sanitaryware to specialist shops and builders merchants. the company uses an alphamicro computer with 12 terminals and five printers to run its accounts and to keep track of stock. woolley is enthusiastic about the benefits the computer system has brought from the 200-300 p..

study of various forms of cds solar cells

presents a study of various forms of cds, viz. single crystal, thin and thick films deposited by electrophoresis, silk screen printing or thermal evaporation, for their potential use in fabricating photovoltaic devices by the dry barrier process, which is considered the most suitable for thin film devices. cd/sub 1-y/zn/sub y/s mixed crys..