Kodi Mitundu Yosiyanasiyana ya Ma PCB Ndi Chiyani?
Magawo a PCB alipo m'mitundu ingapo yamapulogalamu osiyanasiyana. Kusankha kamangidwe koyenera kwa chinthu kumafunikira injiniya kuti aganizire za kagwiritsidwe ntchito kachipangizo, miyeso yake ndi mphamvu zake. Unikaninso zotsatirazi kuti mumvetsetse mitundu ya matabwa osindikizira ndi mitundu iti yomwe ili yoyenera kuyesetsa kwanu:
Ma PCB a mbali imodzi: Kupanga kwa PCB kumaphatikizapo kupanga bolodi lozungulira kuchokera ku gawo limodzi la gawo limodzi ndi chitsulo chochepa kwambiri. Zigawo zonse zimagulitsidwa mbali imodzi.
Ma PCB a mbali ziwiri: Mtundu wa PCB pomwe mapepala achitsulo oyendetsa amayikidwa mbali zonse za gawo lapansi.
Mabowo akhoza kubowoledwa pakati pa bolodi lozungulira kuti maulumikizidwe ayende mbali zonse ziwiri.
Multilayer PCBs: Ma PCB osachepera atatu osanjidwa pawiri ataunjika pamwamba pa wina ndi mzake ndi zigawo zingapo zotsekera kuti achepetse kutentha. Zomatira zapadera zimasunga ma PCB angapo pamodzi.
Ma PCB osinthika: Ma board ozungulira osindikizidwa omwe amawonetsa magawo osinthika kuti athandize mainjiniya kuti azitha kusintha mawonekedwe azinthu zophatikizika. Ukadaulo ukhoza kukhalapo mwa mawonekedwe a mbali imodzi, mbali ziwiri kapena ma multilayer.
Ma PCB Olimba: Othandiza pazinthu za ogula zomwe zimasunga mawonekedwe omwewo nthawi yonse ya moyo wawo. Ma PCB olimba amapangidwa pogwiritsa ntchito magawo olimba omwe amakana kupotoza.
Ma PCB osasunthika: Ma board osindikizira oyendera pogwiritsa ntchito zida zolimba komanso zosinthika. Zosinthazi zimalola opanga mankhwala kuti asunge malo, chifukwa njira zolumikizirana zolimba komanso zosinthika zitha kuphatikizidwa pagulu lomwelo.
Ma PCB okhala ndi aluminiyamu: Mtundu wa PCB womwe umalowetsa gawo la aluminiyamu pomwe magalasi a fiberglass angakhale. Zapangidwa kuti zizigwiritsidwa ntchito ndi zamagetsi zamphamvu kwambiri za PCB monga nyali za LED.
Ma PCB othamanga kwambiri: Gulu lozungulira lopangidwa kuti litumize ma siginecha amphamvu ngati 2 GHz.
Kodi ma PCB Amapangidwa Kuchokera Chiyani?
Njira yopangira PCB imawoneka yosiyana malinga ndi cholinga cha chipangizocho komanso mphamvu zotani zomwe zimafunikira kuti chipangizo chamagetsi chizigwira ntchito. Musanasankhe zipangizo za msonkhano wa komiti ya dera, ndi bwino kudziwiratu mbali zinayi zazikulu za gulu la PCB:
Gawo lapansi: The structural chimango wa dera bolodi - zonse zigawo zikuluzikulu kulumikiza pamwamba.
Laminates: Zida zomwe zimagwira zigawo zonse za PCB palimodzi.
Chigoba cha Solder: Chimakhala pamwamba pa zojambula zamkuwa pofuna kudzipatula ndikuteteza kulumikizidwa kuzinthu zachilengedwe.
Silkscreen: Imamangiriza ku chigoba cha solder kuti zida zitha kulembedwa.
Kodi schematic ndi chiyani?
Chojambula, kapena chojambula, ndi chithunzi cha zinthu zadongosolo pogwiritsa ntchito zizindikiro zosaoneka bwino m'malo mwa zithunzi zenizeni.
Kodi zoperekedwa ndi ntchito ya PCB Layout ndi ziti?
Pamadongosolo a ntchito ya PCB Layout, zotsatirazi zidzaperekedwa mufayilo yotulutsa:
Ma data a Gerber athunthu kuphatikiza mafayilo a Drill (Zigawo zozungulira, Mask layers, Silk layers, Outline, Drill layers, Matanizani)
Sankhani & Ikani data
Final Bill of Material Fayilo
Project Netlist ndi fayilo ya PDF
Ndi mitundu yanji yazinthu zomwe zimagwiritsidwa ntchito popanga ma PCB okhwima?
Zithunzi za FR4
Zida zothamanga kwambiri
Malo othamanga kwambiri a FR4 okhala ndi DF 1Ghz.
Malo othamanga kwambiri a FR4 okhala ndi Df 10Ghz
Low Df ceramic zinthu, magwiridwe antchito pa 10Ghz
Zinthu za PTFE kapena zolimbitsa thupi za PTFE
Kutentha kwakukulu kwa PTFE
Ndi njira zotani zopangira zomwe zimagwiritsidwa ntchito kupanga ma PCB olimba?
Pali njira zambiri zopangira ma PCB okhwima. Zotsatirazi zikuphatikizidwa munjira zambiri.
Lamination
Kubowola
Copper plating
Copper etching
Chigoba cha solder
Pamwamba Pamwamba
Zigawo za silkscreen
Depanelization
Kuyesa
Ndi mitundu yanji yoyesera yomwe ma PCB olimba amakumana nawo?
Mayeso amagetsi a Open and short
AOI (Automated Optical Inspection)
Mayeso a TDR Impedance
Hi Potential Testing
Kuyang'ana Zowonongeka Zowoneka
Kuyesedwa kwa Solderability
Kutentha Mayeso
Mayeso a Tepi
Mayeso a Peel
Mayeso a Ionic Contamination
Zimatenga nthawi yayitali bwanji kupanga PCB yolimba?
Zotsatirazi ndi za nthawi yofunikira kuti mupange ma PCB olimba ku Richfulljoy.
Zimatenga masiku 1-5 kuti musinthe mwachangu ma PCB okhwima.
Masabata 1-2 amatengedwa kuti apange mawonekedwe ang'onoang'ono opanga ma PCB okhwima.
Masabata a 2-4 amatha kupanga ma PCB olimba.
Kodi pali kusiyana kotani: Kolimba PCB vs flex PCB?
Kusiyana kwakukulu pakati okhwima PCB bolodi ndi flex PCB bolodi ndi:
1), Amapangidwa ndi zinthu zosiyanasiyana: matabwa okhazikika ozungulira amapangidwa ndi FR4, ceramic, chitsulo pachimake, PTFE etc, onsewo ndi okhwima (sangathe kupindika), pomwe PCB yosinthika imapangidwa ndi polyimide(PI), PET. , Kapton matrial yomwe imatha kupindika kambirimbiri;
2), ngati ali opindika kapena ayi: okhwima PCB si bendable, koma flex PCB ndi bendable;
3), Amagwiritsidwa ntchito mosiyanasiyana: matabwa ozungulira okhazikika amagwiritsidwa ntchito pazida zamagetsi zomwe sizisuntha, koma ma board ozungulira osunthika amagwiritsidwa ntchito pazida zomwe zimasuntha nthawi zonse, monga makamera, ma laputopu, mafoni am'manja, ma probe osuntha etc.
Zimatenga ndalama zingati kupanga PCB yolimba?
Ndizovuta kunena kuti ndi PCB ingati yolimba. Zotsatirazi ndi za zinthu zazikulu zomwe zimakhudza mtengo wa PCB wokhazikika.
Mtundu wa zinthu zoyambira
Kuwerengera kosanjikiza kwa PCB yolimba
Makulidwe a mkuwa
Kuchuluka kwa PCB yolimba
Layup kapangidwe
Akhungu/Okwiriridwa kudzera
Pamwamba amamaliza
Ukadaulo wapadera kapena chofunikira
Kodi zina mwazabwino zogwiritsa ntchito ma PCB okhwima ndi ati?
Ma PCB okhwima ndi ma PCB omwe amagwiritsidwa ntchito kwambiri. Ubwino wake waukulu ndi:
Mkulu dimensional bata
Kudalirika kwakukulu
Mtengo wotsika