Uburinganire nubunini bugenzura ibibazo 2-PCB-stack-ups

Murakaza neza kuri blog ya Capel, aho tuganira kubintu byose bijyanye no gukora PCB bijyanye. Muri iyi ngingo, tuzakemura ibibazo bisanzwe mubikorwa 2 byubatswe PCB kandi tunatanga ibisubizo byokemura ibibazo byuburinganire nubunini.Capel yabaye umuyobozi wambere mu gukora Rigid-Flex PCB, Flexible PCB, na HDI PCB kuva mu 2009. Dufite injeniyeri zirenga 100 zifite uburambe bwimyaka irenga 15 mu nganda za PCB kandi twiyemeje guha abakiriya PCB nziza cyane ibisubizo.

Kubeshyani ikintu cyingenzi ugomba gusuzuma mugihe ukorana na PCB stackups kuko bigira ingaruka itaziguye kumikorere rusange no kwizerwa kubicuruzwa byanyuma. PCB iringaniye neza ningirakamaro muguteranya neza, gushyira ibice neza, no gukwirakwiza ubushyuhe neza. Gutandukana kwose birashobora gutuma abadandaza badakorana nabi, guhuza ibice, cyangwa no guhangayikishwa ninama yumuzunguruko ishobora kuganisha ku ikabutura yumuriro cyangwa gufungura.

Kugenzura ibipimoni ikindi kintu gikomeye mubishushanyo bya PCB, kuko byemeza ko ikibaho kizahuza neza neza nacyo cyagenwe. Igenzura risobanutse neza ryemerera PCB kwinjiza mubicuruzwa byanyuma, birinda kwivanga mubindi bice cyangwa ibintu byubaka.

Reka ducukumbure mubisubizo bifatika kugirango tuneshe uburinganire nibibazo byo kugenzura murwego 2-PCB yibitseho.

1. Guhitamo ibikoresho:
Guhitamo ibikoresho bikwiye ni ishingiro rya PCB iringaniye. Hitamo urwego rwohejuru rwa laminates hamwe nuburinganire buhebuje. Tekereza gukoresha CTE nkeya (coefficente yo kwagura ubushyuhe) ibikoresho nka FR-4, bigabanya ibyago byo kurwara bitewe nihindagurika ryubushyuhe mugihe cyo gukora cyangwa gukoresha.

2. Gukosora gahunda yo gutondeka:
Gutondekanya ibice murwego birashobora kugira ingaruka zikomeye kuburinganire. Menya neza ko ibice byahujwe neza kandi ko intangiriro nibikoresho byateganijwe bigabanijwe. Kuringaniza ikwirakwizwa ryumuringa murwego ruteza imbere kwagura ubushyuhe bumwe, bityo bikagabanya ubushobozi bwo kurwana.

3. Kugenzura inzira yo gukumira:
Gushyira mu bikorwa ibimenyetso byerekana inzitizi ntabwo ari ingenzi gusa ku bimenyetso byerekana ibimenyetso ahubwo binafasha kugumana uburinganire. Koresha uburyo bwo kuyobora bugenzurwa na impedance kugirango wirinde gutandukana gukabije mubyimbye byumuringa kuruhande, bishobora gutera kunama cyangwa gutitira.

4. Vias kandi ushyizwe mu mwobo:
Kubaho kwa vias no gushirwa mu mwobo (PTH) birashobora kwerekana ingingo zo guhangayika kandi bikagira ingaruka kuburinganire. Irinde gushyira vias cyangwa PTHs mubice bishobora guhungabanya ubusugire bwimiterere yubuyobozi. Ahubwo, tekereza gukoresha viasi zihumye cyangwa zishyinguwe kugirango ugabanye impanuka zose zishobora guterwa no gucukura cyangwa gufata amasahani.

5. Gucunga amashyuza:
Kugenzura ubushyuhe bwiza ni ngombwa kugirango ugumane uburinganire. Amashanyarazi akoreshwa mu kwimura ubushyuhe ahantu hashyushye ku kibaho cyumuzunguruko. Byongeye kandi, tekereza gukoresha indege y'umuringa cyangwa ubushyuhe kugirango ugabanye ubushyuhe neza. Imicungire yubushyuhe ihagije ntabwo irinda gusa kurwara, ariko kandi izamura ubwizerwe muri rusange bwa PCB.

6. Uburyo bunoze bwo gukora:
Korana numushinga uzwi nka Capel ufite uburambe bunini mugukora PCB nziza. Ubuhanga bugezweho bwo gukora, burimo gutondeka neza, kugenzurwa no kumurika ibyiciro byinshi, nibyingenzi kugirango ugere kuburinganire no kugenzura ibipimo.

7. Ingamba zo kugenzura ubuziranenge:
Ingamba zikomeye zo kugenzura ubuziranenge zishyirwa mubikorwa mubikorwa byose. Ibi bikubiyemo ubugenzuzi busanzwe, tekinoroji ya metero yambere no kubahiriza amahame yinganda. Kugenzura neza ubuziranenge byemeza ko uburinganire nibisabwa kugenzura buri gihe byujujwe.

Muri make,uburinganire nubugenzuzi buringaniye nibyingenzi kugirango batsinde ibice 2 bya PCB. Muguhitamo neza ibikoresho, ukurikiza urutonde rukwiye, gushyira mubikorwa inzira igenzurwa, gucunga ubushyuhe neza, no gukorana nuwabimenyereye nka Capel, urashobora gutsinda ibyo bibazo kandi ukagera kubikorwa byiza bya PCB. Ntukemere ubuziranenge bwa PCB - wizere Capel kugirango uhuze ibyo PCB ikeneye byose.