Mutsara wakafara uye nzvimbo yakatarwa ye2-layer PCBs

Mune ino blog post, isu tichakurukura zvinhu zvakakosha zvekufunga nezvazvo pakusarudza mutsara upamhi uye nzvimbo yakatarwa ye2-layer PCBs.

Paunenge uchigadzira uye kugadzira akadhindwa edunhu mabhodhi (PCBs), chimwe chezvakakosha kufunga ndechekuona upamhi hwemutsara wakakodzera uye nzvimbo yakatarwa. Aya maratidziro ane chekuita kwakakura paPCB kuita, kuvimbika, uye kushanda.

1. Nzwisisa zvakakosha zvehupamhi hwemutsara uye nzvimbo:

Tisati tapinda muzvinyorwa, zvakakosha kuti tive nekunzwisisa kwakajeka kwezvinoreva mutsara wehupamhi uye spacing. Linewidth inoreva hupamhi kana ukobvu hwematehwe emhangura kana makondukita paPCB. Uye spacing zvinoreva nhambwe iri pakati pezvironda izvi. Izvi zviyero zvinowanzotsanangurwa mumamilimita kana mamirimita.

2. Funga nezvemagetsi maitiro:

Chinhu chekutanga chekufunga kana uchisarudza upamhi hwemutsara uye kupatsanurwa kwenzvimbo ndeyemagetsi maitiro ePCB. Iyo hupamhi hwekutsvaga inokanganisa dunhu-inotakura kugona uye impedance. Mateki akakora anogona kubata yakakwira mitoro iripo pasina kukonzera kurasikirwa kwakanyanya. Pamusoro pezvo, kupatsanurana pakati pezvitsvagiso kunokanganisa mukana wekuyambuka uye electromagnetic interference (EMI) pakati pezviteshi zvepedyo kana zvikamu. Funga nezvesaiti yevoltage level, frequency signal, uye ruzha senits kuti uone zvakakodzera magetsi.

3. Mafungiro ekubvisa kupisa:

Chimwe chinhu chakakosha chekufunga nezve thermal management. Mutsetse wemutsara uye mutsara wemutsara unobata basa mukupisa kwakakodzera. Huwandu hutsva hunofambisa hunoshanda kupisa kupisa, kuderedza mukana wezvikamu pabhodhi kupisa. Kana PCB yako ichida kushingirira maapplications emagetsi epamusoro kana kushanda munzvimbo ine tembiricha yepamusoro, kutsvaga kwakakura uye nzvimbo yakakura inogona kudiwa.

4. Kukwanisa kugadzira:

Pakusarudza upamhi hwemitsara uye nzvimbo, kugona kugadzira kwePCB mugadziri kunofanirwa kutariswa. Nekuda kwemidziyo uye zvipimo zvemaitiro, havasi vese vagadziri vanogona kuwana yakatetepa mutsara wakafara uye yakasimba nzvimbo. Izvo zvakakosha kubvunzana nemugadziri wako kuti uone kuti izvo zvakasarudzwa zvinosangana mukati mezvavanogona. Kutadza kuita izvi kunogona kukonzera kunonoka kugadzira, kuwedzera mitengo, kana kukanganisa PCB.

5. Chiratidzo chekuvimbika:

Kutendeseka kwechiratidzo kwakakosha muPCB dhizaini. Mutsetse wehupamhi uye kupatsanurwa kwenzvimbo kunogona kukanganisa zvakanyanya kutendeseka kwechiratidzo chepamusoro-kumhanya dhijitari maseketi. Semuyenzaniso, mumagadzirirwo akakwira-frequency, upamhi hwemitsara midiki uye nzvimbo yakamanikana inogona kudikanwa kuderedza kurasikirwa kwechiratidzo, kusapindirana kwepedance, uye kuratidza. Signal kutendeseka simulation uye ongororo inogona kubatsira kuona kwakakodzera zvirevo kuti uchengetedze kuita kwakanyanya.

6. PCB kukura uye density:

Saizi yePCB uye density inoitawo basa rakakosha pakuona upamhi hwemutsara uye nzvimbo yakatarwa. Mabhodhi madiki ane nzvimbo shoma anogona kuda maronda madiki uye nzvimbo yakamanikana kuti iwane zvese zvinongedzo zvinongedzo. Kune rimwe divi, mabhodhi akakura ane zvipingamupinyi zvishoma anogona kubvumira kuteera kwakakura uye nzvimbo huru. Izvo zvakakosha kurova chiyero pakati pekuwana inodiwa mashandiro uye kuve nechokwadi chekugadzira mukati meiyo iripo yebhodhi nzvimbo.

7. Zviyero zveindasitiri uye nhungamiro yekugadzira:

Chekupedzisira, zvinokurudzirwa kutarisa kune indasitiri zviyero uye dhizaini nhungamiro kana uchisarudza upamhi hwemutsara uye nzvimbo yakatarwa. Masangano akadai se IPC (Electronic Industries Council) anopa chaiwo mwero uye nhungamiro inogona kushanda seyakakosha mareferensi. Aya magwaro anopa ruzivo rwakadzama pahupamhi hwemutsara wakakodzera uye nzvimbo yezvishandiso zvakasiyana uye matekinoroji.

Muchidimbu

Kusarudza iyo chaiyo mutsara upamhi uye nzvimbo yakatarwa ye2-layer PCB inhanho yakakosha mukugadzira maitiro. Kuti ive nechokwadi chekuita kwakakwana, kuvimbika, uye kugadzira, zvinhu zvakaita semagetsi maitiro, kufunga kwekupisa, kugona kugadzira, kutendeseka kwechiratidzo, PCB zviyero, uye zviyero zveindasitiri zvinofanirwa kutariswa. Nekunyatsoongorora zvinhu izvi uye kushanda pamwe chete nemugadziri wePCB, unogona kugadzira PCB yakarurama, inoshanda, uye inosangana nezvido zvako.