Chirevo chekuvanzika: Kuvanzika kwako kwakakosha kwazvo kwatiri
Chii chinonzi Fr-4?
Fr-4 Zvinyorwa, ndeipi itsinari yegirazi fiber jira, redunhu redunhu, iro zita reCode remarara, rinoreva kuti zvinhu zvechimiro zvinofanirwa kudzima pachako mushure mekupisa . Chirevo chezvinhu. Kunyanya kushandiswa muPCB (yakadhindwa redunhu bhodhi), General single-divi-yakaenzana uye yakaenzana uye yakawandisa-layer PCB matunhu ematunhu akagadzirwa neizvi! Nekuda kwesimba rayo rakanyanya uye ruramba rurembe, mapuranga ematunhu mazhinji achasarudza Fr-4 sechinhu cheti.
2. Ndeipi PCB uye kuumbwa kwayo?
PCB ndeyekupfupika kwedunhu rakadhindwa wedunhu muchiRungu. Iro zita reChinese rakadhindwa wedunhu redunhu, rinozivikanwawo sedare redunhu redunhu uye rakadhindwa wedunhu redunhu. Icho chinhu chakakosha chemagetsi chikamu. Iyo inopa muyero yemagetsi yezvikamu zvemagetsi.
Iyo PCB inotanga neiyo yakakosha chikamu: Iyo substrate, iyo ine zvikamu zvakati, chimwe nechimwe chinoita basa rakakosha mukushanda kwePCB yekupedzisira PCB. Aya achinja matombo anosanganisira:
• Subassrate: Ichi ndicho chigadziko chePCB. Inoita kuti PCB yakaomarara.
• Copper: Wedzera denderedzwa rakatetepa yemhangura mhirizhonga kune imwe neimwe yekuita chikamu chePCB - kune rimwe divi rePCB, kana pamativi ese maviri kana iri pani-yakaenzana PCB. Iyi ndiyo yemhangura trace layer.
• Sperter Mask: Pamusoro peiyo Copper Lager ndiye mutengesi mask, iyo inopa PCB yega yega yehunhu hwegirazi. Iyo inounza miti yemhangura mukusangana kwekusangana nezvimwe zvinhu zvinogadzirisa zvinogona kukonzera dunhu pfupi. Mune mamwe mazwi, mutengesi anochengeta zvese munzvimbo. Makomba ari mumutengesi mask aripo mutengesi anoshandiswa kubatanidza chikamu chebhodhi. Mask mask ndeye nhanho yakaoma yekugadzira PCBA Kugadzira sezvazvinodzivirira kutengesa pazvikamu zvisingadiwe uye zvinodzivisa matunhu mapfupi.
• Silkscreen: Iyo White Silkscreen ndiyo yekupedzisira denderedzwa pane PCB. Iyi denderedzwa inowedzera zvinyorwa paPCB muchimiro chevanyori nezviratidzo. Izvi zvinobatsira kupa chiratidzo chebasa rechikamu chimwe nechimwe chiri pabhodhi.
Zvakanakira uye hunhu hweFr-4.
November 14, 2024
November 13, 2024
October 20, 2022
October 20, 2022
February 10, 2023
Imeyili kune uyu mutengesi
November 14, 2024
November 13, 2024
October 20, 2022
October 20, 2022
February 10, 2023
Chirevo chekuvanzika: Kuvanzika kwako kwakakosha kwazvo kwatiri
Zadza rumwe ruzivo kuti ugone kuwirirana newe nekukurumidza
Chirevo chekuvanzika: Kuvanzika kwako kwakakosha kwazvo kwatiri