Kulo nyaka, echatshazelwa ngubhubhani omtsha wesithsaba, ukunikezelwa kwezixhobo zePCB akwanelanga, kwaye amaxabiso ezinto eziluhlaza nawo ayenyuka.Amashishini anxulumene nePCB nawo achatshazelwe kakhulu.Kwinkqubela yesiqhelo yeprojekthi, iinjineli kufuneka zicinge ngokwandisa uyilo lokunciphisa iindleko zePCB.Ke, zeziphi izinto eziya kuchaphazela iindleko zokwenziwa kwePCB?
Izinto eziphambili zichaphazela ixabiso lePCB yakho
1. Ubungakanani bePCB kunye nobungakanani
Kulula ukuqonda ukuba ubungakanani kunye nobungakanani buyakuchaphazela ixabiso le-PCB, ubungakanani kunye nobungakanani buya kusebenzisa izixhobo ezininzi.
2. Iintlobo zezinto ezisetyenzisiweyo ze-substrate
Ezinye izixhobo ezizodwa ezisetyenziswa kwindawo ethile yokusebenza zinokubiza kakhulu kunemathiriyeli eqhelekileyo.Ukwenziwa kweeBhodi zeSekethe eziShicileleyo kuxhomekeke kwizinto ezininzi ezisekwe kwisicelo, ezilawulwa ikakhulu ngamaza kunye nesantya sokusebenza, kunye nobona bushushu bokusebenza buphezulu.
3. Inani leeleya
iileya ezininzi ziguqulela kwiindleko ezongezelelweyo ngenxa yamanyathelo amaninzi emveliso, izinto ezininzi, kunye nexesha elongezelelweyo lokuvelisa.
4. Ukuntsokotha kwePCB
PCB ukuntsokotha kuxhomekeke kwinani umaleko kunye nenani vias kwi umaleko ngamnye, njengoko oku kuchaza iiyantlukwano umaleko apho vias iqala kwaye ayeke, efuna kakhulu lamination kunye nokugrumba amanyathelo kwinkqubo yokuvelisa PCB.Abavelisi bachaza inkqubo yokulambisa njengokucinezela iileya ezimbini zobhedu kunye ne-dielectrics phakathi kweeleya zobhedu ezikufutshane kusetyenziswa ubushushu kunye noxinzelelo ukwenza i-laminate ye-PCB eninzi.
Uluphucula njani uyilo lwakho?
1. Umkhondo kunye ne-gap geometry- i-thinner ibiza kakhulu.
2. Ukulawulwa kwe-impedance- amanyathelo enkqubo eyongezelelweyo yonyusa iindleko.
3. Ubungakanani kunye nokubalwa kwemingxuma- imingxuma engaphezulu kunye nedayamitha ezincinci zokuqhuba iindleko ukuya phezulu.
4. Iplagi okanye i-vias egcwalisiweyo kunye nokuba i-copper coverage- amanyathelo ongezelelweyo enkqubo yonyusa iindleko.
5. Ubunzima bobhedu kwiileya- ubukhulu obuphezulu buthetha iindleko eziphezulu.
6. Ukugqitywa komphezulu, ukusetyenziswa kwegolide kunye nobukhulu bayo- Izinto ezongezelelweyo kunye namanyathelo enkqubo yonyusa iindleko.
7. Ukunyamezelana- ukunyamezelana kuyabiza.
Ezinye izinto zichaphazela ixabiso lakho.
Ezi zinto zincinci zeendleko ezibandakanya udidi lwe-III zixhomekeke kuzo zombini, umenzi kunye nokusetyenziswa kwe-PCB.Ubukhulu becala zibandakanya:
1. PCB ubukhulu
2. Unyango olwahlukeneyo lomphezulu
3. I-solder masking
4. Ukushicilelwa kwentsomi
5. Iklasi yentsebenzo yePCB (IPC Class II/ III njl.)
6. PCB contour- ngokukodwa z- axis umzila
7. Icala okanye i-edge plating
I-PHILIFAST iya kukunika iingcebiso ezilungileyo ngokufanelekileyo ukukunceda ukuba uhlise iindleko zeebhodi ze-PCB.
Ixesha lokuposa: Jul-14-2021