Ntau hom Circuit Court boards

cov luam tawm hauv Circuit Court board los yog PCB yog lub rooj tsav xwm kev txhawb nqa lub cev thaum siv hluav taws xob txuas nrog ntau yam khoom siv hluav taws xob ntawm qhov dav dav. Lub rooj tsav xwm hauv Circuit Court siv cov xaim hluav taws xob, padding thiab lwm yam khoom uas ncha los ntawm txheej tooj liab.

Ib leeg ib tog

Raws li lub npe qhia, PCB ib leeg yog ua los ntawm ib qho khoom siv, tseem hu ua “substrate.” On top of the base is a thin foil layer made of copper. Qhov no ua raws li tus neeg xyuas pib ntawm cov teeb liab hluav taws xob.

Cov no yog ntau hom PCBS thiab nrov heev hauv ntim ntau lawm vim lawv cov nqi qis. Cov boards no feem ntau pom nyob rau hauv lub koob yees duab, lub laij lej thiab cov khoom siv hauv xov tooj cua.

Lawv kuj tuaj yeem pom hauv cov khoom ua si yooj yim tsim.

Ob tog

Muab ob npaug rau-sided printed circuit boards ua hauj lwm zoo li ib leeg-sided printed circuit boards, tab sis yog sandwiched ntawm conductive txheej ntawm ob sab. In addition, they are designed to have holes drilled into the plate.

Cov qhov no tau muab tso rau ntawm lub rooj tsavxwm kom tso cai rau lub Circuit Court mounted ntawm ob sab ntawm PCB los yog pub los ntawm lub rooj tsavxwm. Ntxiv qhov yooj yim thiab cov khoom siv hluav taws xob tso cai rau cov khoom siv ob sab los siv rau hauv kev siv ntau dua.

Ob-sided PCBS feem ntau pom nyob rau hauv xov tooj ntawm tes, vending machines, tsheb saib thiab cov khoom siv hluav taws xob ntsuas.

Multilayer

Tus tsim yog ob sab thiab nthuav rau nws. Lub multilayer yog ib qho kev sau tsis pub tsawg tshaj peb (3) ob sab PCBS. Lawv coj cov thev naus laus zis tsim los ntawm no thiab nce lawv lub peev xwm ntau lawm.

Qhov loj thiab qhov chaw yog qhov zoo ntawm ntau txheej PCBS. Lawv tuaj yeem siv ntau lub rooj tsavxwm tsis yog ntau lub rooj tsavxwm.

Lawv yog ib feem tseem ceeb ntawm high-ceev circuits vim hais tias lawv lub rooj tsavxwm loj tso cai rau tus neeg xyuas pib layout thiab lub zog.

Nyuaj Siab

Rigid PCBS can be single, double, or multi-layered. Rigidity yog hais txog cov khoom siv substrate los ntawm cov laug cam. When a PCB is rigid, it is, as the name implies, made of materials that resist distortion or deformation.

A very common rigid PCB is the motherboard on a computer. Lawv tau tsim los ua kom ruaj khov thiab tuaj yeem siv rau hauv ib txoj haujlwm thiab cov duab.

Rigid PCBS benefit from ease of maintenance and ease of use. Txhua qhov project muaj qhov chaw nyob thiab raug cim kom meej thaum lawv tsim. Lawv tsis txwv rau ib qho kev tsim thiab tuaj yeem muaj los ntawm ib txheej mus rau kaum (10) txheej PCB tsim.

Saj zawg zog

Plexible PCBS ua haujlwm tib yam li PCBS nruj, tab sis yog ua los ntawm cov khoom sib txawv.

Rigid daim hlau yog ua los ntawm cov khoom siv ruaj khov (lub ntsiab lus tuav lawv cov duab) (feem ntau yog fiberglass sib xyaw), thaum cov phaj hloov tau feem ntau yog ua los ntawm cov yas lossis cov khoom zoo sib xws.

Cov ntaub ntawv yooj yooj yim yog qhov tseem ceeb ntawm kev hloov pauv PCBS. Kev txuag nqi yog ua tau vim tias lawv muaj peev xwm “pob” thaj chaw uas cov phaj nruj yuav tsum tau mus ncig.

The main applications of flexible PCBS are in systems that may cause damage to the environment. Lawv cov qauv tsim ua rau lawv tiv taus qhov kub thiab txias, dej, corrosion thiab lwm yam uas yuav ua rau cov hlau tsis zoo.

Mixing and soft

Rigid-flexibility Bridges the gap between the two types built on text and graphics, which is most common in mobile phones and digital cameras.

Cov no suav nrog cov txheej txheem hloov pauv tau txuas nrog ntau daim hlau tsis sib xws. Qhov no ua rau kev tsim qauv yooj yim dua, vim nws muab tag nrho cov ntsiab lus xav tau rau cov khoom no rau hauv ib feem “ib leeg”.

Rigidness thiab yooj kuj tuaj yeem pom hauv daim ntawv thov kev kho mob.

Aluminium rov qab

Thaum tshav kub kub dissipation yog lub hauv paus rau PCB. Thaum qhov ntsuas kub ntawm qhov system yog qhov xav tau, siv aluminium backboard PCB yog qhov kev xaiv zoo tshaj plaws, uas suav nrog lwm cov txiaj ntsig pom tseeb.

The structure of the PCB is relatively similar to a standard single or double layer, but the materials used are varied.

Lawv muaj kev ruaj khov thiab zoo heev rau ib puag ncig. Aluminium yog non-toxic thiab yooj yim heev rau rov ua dua. On top of that, it’s incredibly cheap, it’s one of the cheapest metals in mining, and it’s cheap to make.

Loj heev

Hf PCBS tsis yog tsim nyob rau hauv txoj kev tshiab, piv txwv li, piv ib leeg rau ntau txheej, tab sis xa mus rau ib hom kev siv. High zaus PCBS tuaj yeem siv tau thaum cov teeb liab yuav tsum tau xa tawm ntawm tus nqi siab dua 1GHz. They are mainly used in large communication systems.

Cov txiaj ntsig ntawm kev siv PCB

Txawm hais tias txhua yam ntawm lub rooj tsavxwm muaj nws qhov zoo, muaj ntau yam txiaj ntsig rau kev siv PCB feem ntau.

Easy trouble shooting and maintenance

Qhov kev teeb tsa, lossis “khiav,” ntawm lub rooj tsavxwm ua kom yooj yim txheeb xyuas cov khoom siv teeb meem thiab hloov nws

Remove and reattach to board

Efficiency ntawm: Tsis tas yuav rov tsim kho tag nrho Circuit Court thaum kho lossis hloov pauv

Lub rooj tsav xwm Circuit Court yog ib txoj kev npaj ua ntej thiab siv sij hawm tsawg dua los tsim dua li cov kab hluav taws xob

Tsawg suab nrov: Ib qho kev tsim PCB tsim tau zoo tuaj yeem ua rau cov hluav taws xob hluav taws xob tsawg, hu ua “kev sib tham.”

Pab tshem tawm cov suab nrov hluav taws xob uas tuaj yeem ua rau cov cuab yeej ua haujlwm tsis zoo

Kev ntseeg tau: Yog li ntawd, kev sib txuas ntawm lub rooj tsavxwm yog inlaid nrog tooj liab hlau. Tsis muaj kev sib txuas xoob lossis “shky wires.”

Lub vuam txuas tag nrho cov khoom siv rau lub rooj tsavxwm nws tus kheej, yog li lawv ua haujlwm txawm tias lub rooj tsavxwm txav mus.