Lapho wenzaI-PCB Routing, ngenxa yomsebenzi wokuhlaziywa kokuqala awenziwanga noma awenziwanga, ukucubungula okuthunyelwe kunzima. Uma ibhodi le-PCB liqhathaniswa nedolobha lethu, izakhi zifana nomugqa wazo zonke izinhlobo zezakhiwo, imigqa yesiginali yimigwaqo yedolobha, i-flool roundabout Island, ukuvela komgwaqo ngamunye kungukuhlela okunemininingwane, i-wiring nayo iyafana.

1. Izidingo ezibaluleke kakhulu ze-Wiring

A) Kukhethwa imigqa yesiginali yokhiye: Ukuhlinzekwa kwamandla, isiginali esincane se-analog, isikhangiso esisheshayo, isinali yewashi, isiginali yokuvumelanisa kanye nezinye izimpawu zokhiye zithandwa.

B) Isimiso Esibaluleke Kakhulu Sokubukelana Kwezintambo: Qala i-Wiring kusuka kwingxenye nobudlelwano obuyinkimbinkimbi kakhulu bokuxhuma ebhodini. I-Cabling iqala kusuka endaweni exhunywe kakhulu ebhodini.

C) Izinyathelo zokuqapha ze-Key Signal Processing: Zama ukuhlinzeka ngesendlalelo esikhethekile se-wiring for izimpawu ezibalulekile ezifana nesiginali yewashi, isiginali ephezulu kakhulu kanye nesiginali ebucayi, futhi uqinisekise indawo encane yokubucayi. Uma kunesidingo, ukuvikelwa nokukhulisa izikhala zokuphepha kufanele zamukelwe. Qinisekisa ikhwalithi yesiginali.

D) Inethiwekhi enezidingo zokulawulwa kwe-Imperance izohlelwa phezu kwesendlalelo sokulawulwa kwe-Imperance, futhi ukwahlukaniswa kwalo kwesiginali kuyagwenywa.

2.Isilawuli se-Wiring Scrambler

A) Ukuhunyushwa komgomo we-3W

Ibanga phakathi kwemigqa kufanele kube izikhathi ezi-3 zomugqa ububanzi. Ukuze unciphise i-crosstalk phakathi kwemigqa, ukuhlukaniswa komugqa kufanele kube kukhulu ngokwanele. Uma ibanga lesikhungo somugqa lingaphansi kwezikhathi ezi-3 ububanzi bentambo, ama-70% omkhakha kagesi phakathi kwemigqa angagcinwa ngaphandle kokuphazamiseka, okubizwa ngokuthi umthetho we-3W.

B) Ukulawulwa kokuphazamiseka: ICrostalk isho ukuphazamiseka phakathi kwamanethiwekhi ahlukene ku-PCB okubangelwa i-wiring ehambisanayo, ikakhulukazi ngenxa yesenzo sokusakazwa kwamakhono nokusatshalaliswa phakathi kwemigqa ehambisanayo. Izindlela eziphambili zokunqoba iCrosstalk yilezi:

I. Khulisa isikhala sokufana ngokufana bese silandela umthetho we-3W;

II. Faka izintambo zokuhlukaniswa komhlaba wonke phakathi kwezintambo ezihambisanayo

III. Yehlisa ibanga phakathi kwesendlalelo esijabulisayo nendiza yomhlabathi.

I-3. Imithetho ejwayelekile yezidingo ze-wiring

A) ukuqondisa kwendiza eseduze kungu-orthogonal. Gwema imigqa ye-Signal ehlukile engxenyeni ethile eseceleni kwendlela efanayo yokunciphisa ukuphazamiseka kwe-interser engadingekile; Uma lesi simo kunzima ukugwema ngenxa yokulinganiselwa kwesakhiwo seBhodi (njengamanye ama-backplanes), ikakhulukazi lapho isilinganiso sesiginali siphezulu, kufanele ucabangele ukuhlukanisa izingqimba ze-wiring endizeni emhlabathini kanye nezintambo zesiginali emhlabathini.

B) I-wiring yamadivaysi amancane amancane kufanele ibe skicmetric, futhi i-smt pad iholela ekuhlukaniseni izikhala ezisondelene kufanele ixhumeke ngaphandle kwepad. Ukuxhumana okuqondile maphakathi ne-pad akuvunyelwe.

C) Umthetho omncane we-Loop, okungukuthi, indawo ye-loop eyakhiwe ngomugqa wesiginali futhi loop wayo kufanele ube mncane ngangokunokwenzeka. Uma kuncane indawo ye-loop, imisebe yangaphandle futhi incane ukuphazamiseka kwangaphandle.

D) Izintambo ze-STUB azivunyelwe

E) Ububanzi be-wiring wenethiwekhi efanayo kufanele bugcinwe bufanayo. Ukuhluka kobubanzi be-wiring kuzodala ukungalingani kwesici somugqa. Lapho ijubane lokudlulisela liphezulu, ukuboniswa kuzokwenzeka. Ngaphansi kwemibandela ethile, efana ne-wire eholayo yesixhumi, i-BGA Package ihola nge-wire adform, ngenxa yesikhala esincane kungenzeka ingakwazi ukugwema ukuguqulwa kobubanzi belayini, kufanele bazame ukunciphisa ubude bengxenye esebenzayo.

F) vimbela izintambo zesiginali ekwakheni ukuzilolonga phakathi kwezingqimba ezahlukahlukene. Lolu hlobo lwenkinga kulula ukwenzeka ekwakhiweni kwamapuleti e-multilayer, futhi i-self-loop izodala ukuphazamiseka kwemisebe.

G) i-angle ebukhali ne-angle yangakwesokudla kufanele kugwenywe ngaphakathiIdizayini ye-PCB, okuholela emisebeni engadingekile, kanye nokwenza inqubo yokukhiqiza yeI-PCBakukuhle.