Classification ntawm Printed Circuit Boards
Ib lub vaj huam sib luag
Ntawm qhov yooj yim tshaj plaws PCB, cov khoom yog concentrated ntawm ib sab thiab cov xov hlau yog concentrated rau sab nraud. Vim tias cov xov hlau tsuas yog tshwm sim ntawm ib sab, hom PCB no hu ua ib leeg -sab. Vim hais tias ib lub rooj tsavxwm muaj ntau qhov kev txwv nruj rau kev tsim ntawm lub voj voog (vim tsuas muaj ib sab xwb, cov xaim tsis tuaj yeem hla thiab yuav tsum mus ncig ntawm ib qho kev sib cais), yog li tsuas yog thaum ntxov circuits siv hom board.
Ob chav vaj huam sib luag
This circuit board has wiring on both sides, but to use both sides of the wire, there must be a proper circuit connection between the two sides. Such "bridges" between circuits are called vias. Vias are small holes on a PCB, filled or painted with metal, that can be connected to wires on both sides. Because the area of the double-sided board is twice as large as that of the single-sided board, the double-sided board solves the difficulty of interleaving wiring in the single-sided board (it can be passed to the other side through the via hole), and it is more suitable for use in more complex circuits than the single-sided board.
Multilayer board
Txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau xaim, ntau dua ib zaug lossis ob zaug - cov kab hluav taws xob sib txuas yog siv rau ntau txheej txheej. Lub rooj tsav xwm luam tawm nrog ob npaug - sab hauv txheej, ob txheej ib zaug - sab nrauv txheej, lossis ob ob - sab hauv txheej thiab ob txheej ib zaug - sab nraud, alternated ua ke los ntawm ib tug positioning system thiab insulating cov ntaub ntawv, thiab conductive qauv. Cov ntawv luam tawm hauv Circuit Court uas sib cuam tshuam raws li kev tsim qauv yuav dhau los ua plaub- txheej thiab rau - txheej luam tawm Circuit Board, los yog ntau- txheej luam tawm Circuit Board. Tus naj npawb ntawm cov khaubncaws sab nraud povtseg tsis tau txhais hais tias muaj ob peb txheej txheej txheej txheej. Hauv cov xwm txheej tshwj xeeb, ib txheej khoob yuav raug ntxiv los tswj lub thickness ntawm lub rooj tsavxwm. Feem ntau, tus naj npawb ntawm cov khaubncaws sab nraud povtseg yog qhov sib npaug thiab suav nrog ob txheej txheej sab nraud. Feem ntau cov motherboards yog 4 mus rau 8 txheej ntawm cov qauv, tab sis technically nws tuaj yeem ua tiav ze li 100 txheej ntawm PCB. Feem ntau cov khoos phis tawj loj feem ntau siv ntau- txheej motherboards, tab sis vim tias cov khoos phis tawj no tuaj yeem hloov tau los ntawm pawg ntawm ntau lub khoos phis tawj zoo tib yam, ultra-ntau- txheej boards tau maj mam poob ntawm kev siv. Vim tias cov khaubncaws sab nraud povtseg hauv PCB tau nruj nruj, nws feem ntau tsis yooj yim pom tus lej tiag tiag, tab sis yog tias koj saib ze ntawm lub motherboard, koj tseem tuaj yeem pom nws.
