A preface.

Hapana mhangura mugomba idambudziko rinoshanda re PCB. Nekuvandudzwa kwesainzi uye tekinoroji, pcb chaiyo (chakaringana chiyero) inodiwa kuti ive yepamusoro uye yepamusoro, iyo isingori chete inounza dambudziko kune vagadziri vePCB (kupesana pakati pemutengo nehunhu), asi zvakare inosiya yakakomba mhando dambudziko rakavanzika kune vatengi vezasi! Ita ongororo yakapusa panguva ino pazasi, tarisiro yekuve nekujekerwa uye kubatsira kune akakodzera waunoshanda naye!

2. Fishbone dhayagiramu yekuongorora

Simple analysis of PCB hole copper and improvement methods

Classification and characteristics of copper – free holes

1. Pasina mhangura mugomba rePTH: iyo yemagetsi layer yeplate ndiro yemhangura yakafanana uye yakajairwa. Hutambo hwemagetsi hweplate iri mugomba hwakagovaniswa zvakaenzana kubva pachiyero kusvika pakatsemuka, uye kutsemuka kunofukidzwa neyemagetsi mushure mekudhirowa.

Simple analysis of PCB hole copper and improvement methods

2. Plate yemagetsi mhangura yakatetepa gomba isina mhangura:

(1) Iyo yose ndiro yemhangura yakatetepa gomba isina mhangura – pamusoro pemhangura uye gomba remhangura ndiro yemagetsi yakatetepa kwazvo, mushure mekuratidzira kwemagetsi kwakajeka kweiyo micro etching gomba pakati peiyo yakawanda yeplata mhangura yakaora, mushure meiyo yakajeka magetsi yakavharwa;

(2) hapana mhangura mugomba rakatetepa replate yemhangura iri mugomba – hwendefa yemagetsi yeplate ndiro yakafanana neyakajairika, uye denderedzwa remagetsi replate iri mugomba iri kudzikira kubva pagomba kusvika pakatsemuka, uye kutsemuka kunowanzo kuve pakati pegomba, uye rukoko rwemhangura runosara pakutsemuka

Rutivi rworudyi rune hukama hwakanaka uye kuenderana, uye iyo yekupedzisira-girafu yakatsemuka yakafukidzwa negirafu yakaturikidzana.

Simple analysis of PCB hole copper and improvement methods

3.Gadzirisa maburi akakuvara:

(1) mhangura kugadzirisa gomba rakaipa – tafura yendarira ndiro yemagetsi yunifomu uye yakajairwa, gomba remhangura ndiro yemagetsi haina kana tapering maitiro, kutyoka kwacho hakuna kujairika, kunogona kuoneka mumuromo wegomba kunogona kuonekawo pakati pegomba , mumadziro egomba anowanzoonekwa akashata convex uye mamwe akashata, dhayagiramu yemagetsi mushure mekutsemuka kwakafukidzwa nemufananidzo wedhara yemagetsi.

(2) ngura kugadzirisa kweiyo gomba, tafura yendarira ndiro yemagetsi yunifomu uye yakajairwa, iyo gomba yendarira ndiro yemagetsi isina taping maitiro, iyo kutsemuka haina kujairika, inogona kuoneka mune orifice inogona zvakare kuoneka pakati pegomba , mumadziro egomba anowanzoonekwa akashata convex uye mamwe akashata, iyo yakatsemuka dhayagiramu yemagetsi wedenga haina kuputira ndiro yemagetsi rukoko.

Simple analysis of PCB hole copper and improvement methods

4. Hapana gomba remhangura plug: mushure mekuburitsa graphic, pane zvinhu zviri pachena zvakanamatira mugomba, mizhinji yemadziro egomba yakakanganiswa, iyo graphic yemagetsi pakatsemuka haina kuvharwa neplate yemagetsi.

Simple analysis of PCB hole copper and improvement methods

5. Ratidza gomba remagetsi risina mhangura: rukoko rwemagetsi pakatyoka haruputirwe muplate yemagetsi rukoko – chimiro chemagetsi wedenga uye ndiro yemagetsi ukobvu yunifomu, yakatsemuka yadambuka; Iyo yakajeka graphic magetsi inoratidzira tapering maitiro kusvika yanyangarika, uye iyo ndiro yemagetsi rukoko inoramba ichiwedzera kune chinhambwe kupfuura iyo yakajeka graphic yemagetsi uye yobva yadimbura.

Simple analysis of PCB hole copper and improvement methods

Simple analysis of PCB hole copper and improvement methods

Iv. Improvement Direction:

1.Kushanda (epamusoro uye ezasi mabhodhi, paramende kumisikidza, kugadzirisa, zvisina kujairika kubata);

2. Zvishandiso (crane, feeder, kudziyisa peni, vibration, mweya pombi, filtration kutenderera);

3. Zvishandiso (ndiro, mushonga);

4. Maitiro (parameter, maitiro, maitiro uye kutonga kwehunhu);

5. Zvakatipoteredza (musiyano unokonzerwa netsvina, yakasviba uye zvakasiyana-siyana).

6. Kuyera (bvunzo yemishonga yemvura, kuongorora kwemhangura).