Masana'antar kayan PCB na PCB sun kashe muhimman lokaci na kayan da ke bunkasa kayan da ke samar da mafi ƙasƙanci asarar alama. Don babban saurin zane da yawa, asarar za ta iyakance nesa nesa da sigina, kuma zai haifar da karkatar da keɓaɓɓen wanda za'a iya gani a ma'aunin TDR. Yayin da muke tsara duk wani jirgin buga da'irar da aka buga da haɓaka da'irori waɗanda ke aiki a babbar tagulla, ana iya yin jarawa don zaɓi don ragamar mai yiwuwar yiwuwar zama abin da zai yiwu.

Yayinda yake da gaskiya cewa tagulla ya haifar da ƙarin karkata da asara, yadda kyawawan teku ta jajjefe ta kasance? Shin akwai wasu hanyoyi masu sauƙi Zaka iya amfani da su don shawo kan asarar ba tare da zaɓar jan ƙarfe mai laushi ba ga kowane ƙira? Za mu kalli waɗannan abubuwan a cikin wannan labarin, da kuma abin da zaku iya nema idan kun fara cin kasuwa don kayan kayan PCB.

Nau'inPCB Tumble Foril

A yadda aka saba lokacin da muke magana game da jan ƙarfe akan kayan PCB, ba mu magana game da takamaiman nau'in jan ƙarfe, kawai muna magana game da hadari. Hanyoyin ajiya daban-daban suna samar da fina-finai tare da dabi'u daban-daban, wanda za'a iya bambancewa a fili shi a cikin hoto na bincika hoto (SEM). Idan za ku kasance cikin manyan mitoci (yawanci 5 GHZ Wifi ko sama da sama) ko a cikin manyan sauri, sannan ku kula da nau'in jan ƙarfe da aka ƙayyade a cikin kayan kayan aikinku.

Hakanan, tabbatar cewa fahimtar ma'anar DK dabi'u a cikin bayanan bayanai. Kalli wannan tattaunawar Podcast tare da John Coonrod daga Rogers don ƙarin koyo game da bayanan dk. Da wannan a zuciya, bari mu kalli wasu nau'ikan nau'ikan wando na PCB na tagulla.

ElectroDposited

A cikin wannan tsari, wani drum yana ta hanyar bayani na lantarki, da kuma ana amfani da shi na lantarki don "girma" jan karfe a kan drum. Kamar yadda tsutsotse mai jan ƙarfe ana lullube shi a hankali a kan wani mai zane, yana ba da wani ci gaba mai jan ƙarfe wanda za'a iya birgima a kan laminate. Drum gefen jan ƙarfe za ta dace da ƙarfin dutsen, yayin da bangaren da aka fallasa zai zama Rougher sosai.

Electriddoposited PCB Safiyar Kafa

PicheDPoSited tagulla.
Domin a yi amfani da shi a cikin daidaitaccen tsari na PCB na PCB, ana ba da gefen gefen tagulla na jan ƙarfe da farko. Ragowar jan karfe da aka fallasa (Ginin Drum) zai buƙaci a yi amfani da shi da gangan (misali, tare da plasma etching) kafin a iya amfani da shi a cikin daidaitaccen tagulla laming tsari. Wannan zai tabbatar da za a iya ɗaure shi zuwa Layer na gaba a cikin kayan PCB.

Surface-da aka bi da jan karfe

Ban san mafi kyawun ajali wanda ke saukarwa da duk nau'ikan nau'ikan farfado baGobe ​​na tagulla, don haka abin da ke sama ke nan. Wadannan kayan tagulla sun fi sanin sa a matsayin sahihiyar da aka bi da shi, kodayake ana samun wasu bambance-bambancen guda biyu (duba ƙasa).

Albarkatawa da aka bi da shi suna amfani da jiyya na ƙasa wanda ake amfani da shi zuwa gefen santsi (Drum gefen) na titin lantarki. Jiyya na jiyya kawai rufi ne wanda ke da bakin ciki wanda ke da gangar jikin jan karfe, don haka zai sami m m ga kayan maye. Wadannan jiyya kuma suna aiki a matsayin katangar shaye-shaye wanda ke hana lalata lalata. Lokacin da ake amfani da wannan jan ƙarfe don ƙirƙirar bangarori mai lalacewa, an ɗaure bangaren ga masu siyeeken karatu, da kuma ƙoshin hagu ya kasance fallasa. Bangaren da aka fallasa ba zai bukatar wani ƙarin ropughing a gaban etching; Zai riga ya sami isasshen ƙarfi don haɗin kai ga na gaba Layer a cikin kwaskwarimar PCB.

Misali na uku kan juzu'i mai juyawa da aka yi da shi sun hada da:

Babban zafin jiki Elongation (HTE) Gobe na ƙarfe: Wannan shine murfin ƙarfe na lantarki wanda ya hada tare da bayani na IPC-4562. An kuma kula da fuskar da aka fallasa tare da katangar shaye-shaye don hana lalata lalata yayin ajiya.
An yi amfani da tsare sau biyu: a cikin wannan zare na tagomashi, ana amfani da magani ga ɓangarorin biyu na fim. Wannan abu wani lokacin ana kiran shi da haɗin gwiwa da aka bi da shi.
Tawagar tsayayya: Wannan ba a rarrabe shi kamar yadda aka ware farfajiya ba. Wannan zare zare na tagulla yana amfani da dutsen ƙarfe a saman dutsen na tagulla, wanda shi ne abin roƙo zuwa matakin da ake so.
Aikace-aikacen jiyya A cikin waɗannan kayan jan ƙarfe yana da madaidaiciya: An baci katako ta hanyar ƙarin wanka na lantarki wanda ke amfani da filayen ƙarfe na ƙarfe, kuma a ƙarshe wani fim din fim ɗin ya biyo baya.

PCB Tumble Foril

Hanyoyin kulawa na saman saman dutse don zare na tagulla. [Tushen: pytel, Stenel, Sten G., et al. "Binciken Jiyya da Tasirin Jiyya." A cikin 2008 58th abubuwan lantarki da taron fasaha, PP. 1144-1149. IEEE, 2008.]
Tare da waɗannan hanyoyin, kuna da kayan da za'a iya amfani dashi cikin daidaitattun tsarin ƙirar hukumomin tare da ƙarin ƙarin aiki.

Birgima-Anned jan ƙarfe

Gobarar tagulla za ta wuce muryar jan ƙarfe ta hanyar biyu na rollers, wanda zai daskare-mirgine takardar jan ƙarfe zuwa kauri da ake so. Haɗin da ke haifar da sakamakon tsare zai bambanta dangane da sigogi na mirgina (saurin, matsa lamba, da sauransu).

A sakamakon takardar na iya zama mai santsi, da kuma strawalis suna bayyane a saman takardar jan ƙarfe mai jan ƙarfe. Hotunan da ke ƙasa suna nuna kwatanci tsakanin zare na lantarki da kuma an yi birgima da aka yi birgima.

PCB na tagulla na jan hankali

Kwatanta da electrodoposited vs. Murled-aneled freils.
Low-bayanin martaba
Wannan ba lallai bane wani nau'in jan karfe da za ku ƙirƙira tare da tsarin madadin. Jarjirar martaba mai ɗorewa shine ƙwaƙwalwar ƙwaƙwalwa wanda aka bi da shi kuma an gyara shi tare da tsari micro-roughing don samar da ƙarancin ƙarfi tare da isasshen ramuwar hanya don haɓaka. Hanyoyin da aka tafiyar da su don kera kere na jan karfe na jan ƙarfe yawanci shine. Wadannan fannoni ana rarrabe su azaman 'ul-flow Profile (ULP), ƙarancin bayanin martaba (VLP), kuma kawai ƙananan bayanan martaba (LP, kamar 1 micron matsakaici).

Labarai masu alaƙa:

Me ya sa aka yi amfani da fashin teku da aka yi amfani da shi a masana'antar PCB?

Gobe ​​na jan karfe da aka yi amfani da shi a cikin jirgin da aka buga