A preface.

Babu jan ƙarfe a cikin ramin matsala ce ta aiki PCB. Tare da haɓaka kimiyya da fasaha, ana buƙatar madaidaicin PCB (rabe -raben yanayin) ya zama mafi girma kuma mafi girma, wanda ba kawai ke kawo matsala ga masana’antun PCB ba (sabani tsakanin farashi da inganci), amma kuma yana barin matsala mai ɓoye mai inganci ga abokan cinikin ƙasa! Yi bincike mai sauƙi a wannan lokacin da ke ƙasa, fatan samun haske da taimako ga abokin aikin da ya dace!

2. Binciken zane na ƙashin ƙugu

Simple analysis of PCB hole copper and improvement methods

Classification and characteristics of copper – free holes

1. Babu jan ƙarfe a cikin ramin PTH: layin wutar lantarki na farantin jan ƙarfe na sama daidai ne da na al’ada. Layer ɗin wutar lantarki na farantin da ke cikin ramin an rarraba shi daidai -waƙa daga inda aka kai shi zuwa ga karaya, kuma raunin ya rufe da wutar lantarki bayan zane.

Simple analysis of PCB hole copper and improvement methods

2. Filatin jan ƙarfe na baƙin ƙarfe ba tare da jan ƙarfe ba:

(1) Duk farantin farantin bakin rami na jan ƙarfe ba tare da jan ƙarfe ba – jan ƙarfe da ramin farantin farantin farantin wutar lantarki yana da kauri sosai, bayan ƙirar wutar lantarki mai hoto na ramin micro etching a tsakiyar yawancin farantin jan ƙarfe ya lalace, bayan ƙirar wutar lantarki mai hoto. an rufe;

(2) babu jan ƙarfe a cikin ramin bakin ciki na farantin tagulla a cikin ramin – murfin wutar lantarki na farantin jan ƙarfe ɗaya ne da na al’ada, kuma layin wutar lantarki na farantin a cikin ramin yana raguwa daga ramin zuwa karaya, kuma karyewar gabaɗaya tana tsakiyar ramin, kuma an bar murfin jan ƙarfe a karaya

Gefen dama yana da kyakkyawan daidaituwa da daidaituwa, kuma raunin bayan-jeri yana rufe da jadawali.

Simple analysis of PCB hole copper and improvement methods

3. Gyara ramukan da suka lalace:

(1) jan ƙarfe yana gyara ramin mara kyau – teburin farantin farantin farantin wutar lantarki daidaitacce ne kuma na al’ada, ramin farantin farantin wutar lantarki ba shi da yanayin tapering, karaya ba ta dace ba, na iya bayyana a cikin ramin bakin yana iya bayyana a tsakiyar ramin , a cikin bangon rami sau da yawa yana bayyana m convex da sauran mara kyau, zane -zanen lantarki bayan fashewar an rufe shi da zanen lantarki.

(2) kula da lalata rami, teburin farantin farantin farantin wutar lantarki daidai ne da na al’ada, ramin farantin jan ƙarfe na wutar lantarki ba shi da yanayin taping, karaya ba ta dace ba, na iya bayyana a cikin rami na iya bayyana a tsakiyar rami , a cikin bangon rami sau da yawa yana bayyana m convex da sauran mara kyau, fracture zane lantarki Layer bai kunsa farantin lantarki Layer.

Simple analysis of PCB hole copper and improvement methods

4. Babu ramin toshe na jan ƙarfe: bayan zane mai hoto, akwai abubuwa bayyananne da ke makale a cikin ramin, yawancin bangon ramin ya lalace, layin wutar lantarki mai hoto a karaya ba ya rufe da farantin lantarki farantin.

Simple analysis of PCB hole copper and improvement methods

5. Hoto rami na lantarki ba tare da jan ƙarfe ba: Layer ɗin wutar lantarki a karyewar ba a nannade shi a cikin farantin lantarki na farantin – adadi na lantarki da farantin kauri Layer na kauri ɗaya ne, raunin ya karye; Layer ɗin lantarki mai hoto yana nuna yanayin tapering har sai ya ɓace, kuma farantin lantarki na farantin yana ci gaba da ƙaruwa zuwa nesa fiye da layin wutar lantarki mai hoto sannan ya yanke.

Simple analysis of PCB hole copper and improvement methods

Simple analysis of PCB hole copper and improvement methods

Iv. Hanyar Ingantawa:

1. Yin aiki (allon sama da na ƙasa, saitin sigina, kiyayewa, kulawa mara kyau);

2. Kayan aiki (crane, feeder, alkalami mai dumama, rawar jiki, famfon iska, sake zagayowar tacewa);

3. Kayan aiki (farantin, tukwane);

4. Hanyoyi (sigogi, hanyoyin, matakai da sarrafa inganci);

5. Muhalli (bambancin da ke haifar da datti, gurɓatacce da iri -iri).

6. Aunawa (gwajin maganin ruwa, duba gani na jan karfe).