Esimerkkejä Surface-mount käytöstä Englanti ja niiden käännökset Suomi
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Silver whiskers growing out of surface-mount resistors.
Removal of surface-mount device usingsoldering tweezers.
Double check the codes andif everything is correct you have carried out your first surface-mount placement!
Surface-mount technology-Assembly techniques circuit board pcb.
Ps, are robotic machines which are used to place surface-mount devices(SMDs) onto a printed circuit board PCB.
Surface-mount technology was developed in the 1960s and became widely used in the late 1980s.
The circuit has been specially designed to demonstrate the techniques of FM transmission andto start you in the world of surface-mount assembly.
To introduce surface-mount technology to our range of projects, we have started with resistors.
Parts to be selectively soldered are usually surrounded by parts that have been previously soldered in a surface-mount reflow process, and the selective-solder process must be sufficiently precise to avoid damaging them.
Surface-mount technology emerged in the 1960s, gained momentum in the early 1980s and became widely used by the mid-1990s.
Some of the other components such as capacitors andtransistors are so small they are almost impossible to solder by hand and surface-mount capacitors are not marked in any way so they become easily mixed up if you are not very careful.
The product range includes surface-mount transformers, choke coils, inductor coils, toroidal coils and watch choke coils.
Another reason to use both methods is that through-hole mounting can provide needed strength for components likely to endure physical stress,while components that are expected to go untouched will take up less space using surface-mount techniques.
Surface-mount technology is entirely different to normal through-hole placement and some of the differences are explained in this article.
DIP packages have been mostly displaced by surface-mount package types, which avoid the expense of drilling holes in a printed circuit board and which allow higher density of interconnections.
Often, through-hole and surface-mount construction must be combined in a single assembly because some required components are available only in surface-mount packages, while others are available only in through-hole packages.
However, there is still significant wave soldering where surface-mount technology(SMT) is not suitable(e.g., large power devices and high pin count connectors), or where simple through-hole technology prevails certainmajor appliances.
If they may not be destroyed, surface-mount components must be removed by heating the entire component to a temperature sufficient to melt the solder used, but not high or prolonged enough to damage the component.
The land grid array(LGA)is a type of surface-mount packaging for integrated circuits(ICs) that is notable for having the pins on the socket(when a socket is used) rather than the integrated circuit.
The land grid array(LGA)is a type of surface-mount packaging for integrated circuits(ICs) that is notable for having the pins on the socket(when a socket is used) rather than the integrated circuit.
TheSOIC(Small Outline IC), a surface-mount package which is currently very popular, particularly in consumer electronics and personal computers, is essentially a shrunk version of the standard IC PDIP, the fundamental difference which makes it an SMT device being a second bend in the leads to flatten them parallel to the bottom plane of the plastic housing.