Ndedzipi Mhando Dzakasiyana dzePCBs?
PCB zvikamu zviripo mune akati wandei mafomu ekushandisa kwakasiyana. Kusarudza chivakwa chakakodzera chechigadzirwa kunoda kuti mainjiniya atarise mashandisirwo anotarisirwa kwechigadzirwa, hukuru hwayo uye zvirevo zvesimba. Wongorora zvinotevera kuti unzwisise mhando dzeakadhindwa edunhu mabhodhi uye kuti ndeapi marudzi akakodzera kuita kwako:
Single-sided PCBs: Kugadzirwa kwePCB kunosanganisira kugadzira bhodhi redunhu kubva muchikamu chimwe che substrate uye nhete yesimbi. Zvose zvikamu zvinotengeswa kune rumwe rutivi.
Maviri-mativi maPCB: Mhando yePCB apo conductive simbi mashiti anoiswa kumativi ese e substrate.
Makomba anogona kucherwa nepakati pebhodhi redunhu kuti zvibatanidze zvifambe mativi ese.
Multilayer PCBs: Ashoma matatu matatu-akaturikidzwa maPCB akaturikidzana pamusoro peimwe aine akati wandei akaturikidzana ekudzivirira kudzikamisa kupisa kupisa. Special adhesive glues anochengeta akatevedzana ePCBs pamwechete.
Flexible PCBs: Akadhindwa edunhu mabhodhi anoratidza anochinjika substrates kubatsira mainjiniya kujairana nemakompakiti chigadzirwa maumbirwo. Iyo tekinoroji inogona kunge iripo muchimiro cheimwe-sided, kaviri-sided kana multilayer inovaka.
Rigid PCBs: Inobatsira kune zvigadzirwa zvevatengi zvinochengeta chimiro chakafanana mukati mehupenyu hwavo hwose. Rigid PCBs anogadzirwa achishandisa rugged substrates inoramba kumonyoroka.
Rigid-flex PCBs: Akadhindwa ematunhu mabhodhi achishandisa zvese zvakaomarara uye zvinochinjika zvinhu. Aya magadzirirwo anobvumira vanogadzira zvigadzirwa kuchengetedza nzvimbo, sezvo dzakaomarara uye dzinochinjika nzira dzekubatanidza dzinogona kuverengerwa pane imwechete yedunhu bhodhi.
Aluminium-backed PCBs: Mhando yePCB inotsiva aluminium substrate paizove fiberglass. Yakagadzirirwa kushandiswa nepamusoro-simba PCB zvemagetsi senge mwenje we LED.
High-frequency PCBs: Circuit board yakagadzirirwa kutumira masaini akasimba se2 GHz.
Chii Chinonzi PCBs Yakagadzirwa Kubva?
Iyo PCB yekugadzira maitiro inotaridzika zvakasiyana zvichienderana nechinangwa chakatarwa cheyuniti uye kuti rakawanda sei simba rinodiwa kuti chigadziriso chemagetsi chishande. Usati wasarudza zvekushandisa pagungano rebhodhi redunhu, ipfungwa yakanaka kujairana nezvikamu zvina zvikuru zvePCB unit:
Substrate: Chimiro chechimiro chebhodhi redunhu - zvese zvikamu zvinosungirira pane ino.
Laminates: Zvishandiso zvinobata ese PCB akaturikidzana pamwechete.
Solder mask: Inogara pamusoro pemhangura foil nekuda kwekuzviparadzanisa uye inodzivirira zvinongedzo kubva kune zvakatipoteredza.
Silkscreen: Inosungirira kune solder mask kuitira kuti zvikamu zvigone kunyorwa.
Chii chinonzi schematic?
A schematic, kana schematic diagram, inomiririra zvinhu zvehurongwa uchishandisa abstract, graphic zviratidzo pachinzvimbo chemifananidzo chaiyo.
Ndezvipi zvinotengeswa zvePCB Layout sevhisi?
YePCB Layout sevhisi maodha, iyo inotevera data ichapihwa mune inobuda faira:
Yakazara maGerber datasets anosanganisira Drill mafaera (Dhivha akaturikidzana, Mask layer, Silk layers, Outline, Drill layer, Namira layer)
Sarudza & Isa data
Final Bill of Material file
Project Netlist uye PDF faira
Ndeapi marudzi ezvigadzirwa anowanzoshandiswa kugadzira maPCB akaomarara?
FR4 zvinhu
High signal speed material
High-speed FR4 substrate ine DF 1Ghz.
High-speed FR4 substrate ine Df 10Ghz
Yakaderera Df ceramic zvinhu, kuita pa10Ghz
PTFE zvinhu kana yakasimbiswa PTFE zvinhu
High-tembiricha PTFE zvinhu
Ndeupi rudzi rwemaitiro ekugadzira anoshandiswa kugadzira maPCB akaomarara?
Kune akawanda ekugadzira matekiniki anoshandiswa kugadzira akaomarara PCB. Matanho anotevera anosanganisirwa mune akawanda matekiniki.
Lamination
Kuchera
Copper plating
Copper etching
Solder mask
Surface Finish
Zvikamu silkscreen
Depanelization
Testing
Ndeapi marudzi ekuyedzwa anoitwa maPCB akaomarara?
Muedzo weMagetsi weKuvhurika uye pfupi
AOI (Otomatiki Optical Inspection)
TDR Impedance bvunzo
Hi Potential Testing
Visual Defects Kuongorora
Solderability Test
Thermal Test
Tape Test
Peel Test
Ionic Contamination Test
Zvinotora nguva yakareba sei kugadzira PCB yakaoma?
Zvinotevera ndezvenguva inodiwa kugadzira maPCB akaomarara muRichfulljoy.
Zvinotora 1-5 mazuva ekukurumidza kutendeuka akaomesesa maPCB.
1-2 mavhiki anotorwa kune prototype uye madiki akatevedzana kugadzirwa kweakaomesesa PCB.
2-4 mavhiki anopedzwa pakugadzirwa kwakawanda kwemaPCB akaomarara.
Ndeupi musiyano mukuru: Rigid PCB vs flex PCB?
Musiyano mukuru pakati peakaomesesa PCB bhodhi uye flex PCB bhodhi ndeiyi:
1), Iwo anogadzirwa nezvinhu zvakasiyana: akaomesesa edunhu mabhodhi anogadzirwa neFR4, ceramic, simbi musimboti, PTFE nezvimwewo, ese akaomarara (haagone kukotama), nepo PCB inochinjika ichigadzirwa ne polyimide(PI), PET. , Kapton matrial inogona kukotama zviuru zvenguva;
2), Kana dziri bendable kana kwete: yakasimba PCB haipindike, asi inochinjika PCB inobhenda;
3), Ane mashandisiro akasiyana: akaomesesa edunhu mabhodhi anoshandiswa mumidziyo yemagetsi isingafambi, asi mabhodhi edunhu anochinjika anoshandiswa mumidziyo inogara ichifamba, semakamera, malaptop, nharembozha, kufambisa probe nezvimwe.
Zvinoita marii kugadzira PCB yakaoma?
Zvakaoma kutaura kuti ingani PCB yakaoma. Izvi zvinotevera pamusoro pezvinhu zvikuru zvinokanganisa mutengo wePCB yakaoma.
Base material type
Layer kuverenga kweiyo yakaoma PCB
Mhangura ukobvu
Ukobvu hwePCB yakaoma
Layup chimiro
Bofu/Kuvigwa vias
Surface inopedza
Special tekinoroji kana chinodiwa
Ndeapi mamwe mabhenefiti ekushandisa akaomarara PCBs?
Rigid PCBs ndiwo anonyanya kushandiswa maPCB. Mabhenefiti ayo makuru ndeaya:
High dimensional kugadzikana
Kuvimbika kwepamusoro
Mutengo wakaderera