Pamakomputa memory memory uye makadhi emifananidzo, tinogona kuona mutsara wegoridhe conductive touch mahwendefa, ayo anonzi “minwe yegoridhe”. In PCB dhizaini uye yekugadzira indasitiri, Finger Finger, kana Edge Connector, inoshandiswa senzvimbo yekubuda mubhodhi kuburikidza neConnector Connector. Tevere, ngatinzwisise nzira yekugadzirisa uye zvimwe zvemunwe wegoridhe muPCB.

Goldfinger pcb kurapwa pamusoro

1. PABHodhi rePCBB, asi nekuda kwemutengo wakakwira wegoridhe yakanamirwa, unongoshandiswa mune yemuno goridhe yekumonera maitiro senge goldfinger.

2, inorema simbi, ukobvu hwechinyakare 1 u “, inosvika 3 u” nekuda kwayo kwakanyanya magetsi kuitisa, kutsetseka uye kugadzikana, anoshandiswa zvakanyanya seakadai mabhatani, anosunga IC, BGA dhizaini yeakakwira chaiyo pcb, yegoldeninger pcb yekupfeka -Kurambidza kuita zvinodiwa hakusi kwakakwirira, zvakare kunogona kusarudza iyo yakazara ndiro zedoary maitiro, uye maitiro emutengo ndeyemagetsi goridhe maitiro mutengo wakanyanya kuderera. Ruvara rwegoridhe singi ndarama yeyero.

Pcb yendarama munwe ruzivo kugadziriswa

1) Kuti uwedzere kupfeka kushomeka kweminwe yegoridhe, zvigunwe zvegoridhe zvinowanzoda kuvezwa negoridhe rakaoma.

2) Goridhe munwe inoda chamfering, kazhinji 45 °, mamwe maangles akadai se20 °, 30 °, nezvimwe. Kana pasina chamfering mune dhizaini, pane dambudziko; Iyo 45 ° chamfering muPCB inoratidzwa pazasi:

3) Goridhe munwe inoda kuita iyo yese block ichivharira kutenderera iwindo yekuvhura maitiro, PIN haidi kuvhura simbi mambure;

4) Chinhambwe chidiki pakati petini-singi uye sirivheri-sadhi mapedhi uye kumusoro kwechigunwe chi14mil; Inokurudzirwa kuti iyo pad inofanira kunge iri kupfuura 1mm kure kubva pachigunwe, kusanganisira iyo-yegomba-gomba pad;

5) Usaise mhangura pamusoro pemunwe;

6) Matanho ese ehumwe hwemukati wegoridhe chigunwe anoda kupurindwa, kazhinji nehupamhi hwe3mm; Unogona kuita hafu yemunwe makopi uye akazara eminwe makopi.

D: Ndiyo “goridhe” yegoridhe yegoridhe here?

Kutanga, ngatinzwisise pfungwa mbiri: goridhe rakapfava uye goridhe rakaomarara. Goridhe rakapfava, kazhinji kacho keunyoro nyoro. Goridhe rakaomarara, kazhinji komboni yegoridhe rakaomarara.

Basa rakakosha remunwe wegoridhe kubatanidza, saka rinofanirwa kuve nemagetsi akanaka conductivity, kupfeka kuramba, oxidation kuramba, ngura kuramba.

Nekuti goridhe rakachena (goridhe) rakapfava, zvigunwe zvegoridhe hazviwanzoshandisa goridhe, asi kungori dura re “goridhe rakaoma (mukomboni wegoridhe)”, iyo isingangowana chete kugona kwakanaka kwemagetsi kwegoridhe, asiwo inogona kuita kuti ivhare kuramba , oxidation kuramba.

Saka PCB haina kushandisa “goridhe rakapfava”? Mhinduro yacho ndeyechokwadi inoshandiswa, senge yekubata pamusoro pemamwe makiyi efoni mbozha, waya yealuminium Pane Iyo COB (Chip Pane Bhodhi). Iko kushandiswa kwegoridhe nyoro kunowanzo nickel kunaya kwemvura mune electroplating pane redunhu bhodhi, kukora kwayo kudzora kunowedzera kusimba.