Chii chinonzi Bridging

Bridging

Bridge connection ndeimwe yezvakajairwa kukanganisa mukugadzirwa kweSMT.Iyo inokonzeresa pfupi dunhu pakati pezvikamu, uye inofanirwa kugadziriswa kana yasangana nekubatanidza bhiriji.Pane zvikonzero zvakawanda zvekubatanidza bhiriji

1) Matambudziko emhando ye solder paste

① Iyo simbi yemukati mune solder paste yakakwira, kunyanya kana nguva yekudhinda yakarebesa, zviri nyore kuwedzera simbi yemukati, zvichikonzera IC pin bridging;

② Iyo solder paste ine yakaderera viscosity uye inofashukira kune kunze kweiyo solder pad mushure mekupisa;

③ Kudonha kwe solder paste tower haina kunaka, uye inofashukira kunze kwepadhi ye solder mushure mekupisa;

Solution: gadzirisa chikamu che solder paste kana shandisa yepamusoro solder paste.

2) Kudhinda system

① Kurongeka kwakadzokororwa kwemuchina wekudhinda kwakashata, uye kurongeka hakuna kana (simbi yeplate alignment haina kunaka, PCB alignment haina kunaka), izvo zvinoita kuti solder paste idhindwe kunze kwepadhi, kunyanya iyo yakanaka pitch QFP pad;

② Saizi uye ukobvu hwehwindo retemplate haina kugadzirwa nenzira kwayo, uye iyo Sn Pb alloy coating yePCB pad dhizaini haina yunifomu, inotungamira kune yakawandisa solder paste.

Solution: gadzirisa printer uye uvandudze PCB pad coating.

3) Icho chikonzero chakajairika mukugadzirwa kuti solder paste yakazara kuyerera mushure mekudzvanywa nekuda kwekumanikidza kwakanyanya.Uye zvakare, kana kurongeka kwacho kusina kukwana, zvikamu zvinochinja uye mapini eIC anokanganisa.

4) Iyo reflow furnace yekudziya mwero inokurumidza, iyo inonyungudutsa mune solder paste haina nguva yekuvhuvhuta.

Solution: gadzirisa hurefu hweZ axis ye SMT uye mwero wekudziya we reflow choto.

Chinyorwa nemifananidzo kubva painternet, kana paine kukanganisa pls tanga watibata kuti tibvise.
NeoDen inopa yakazara SMT mutsetse mhinduro, kusanganisira SMT reflow oven, wave soldering muchina, pick nekuisa muchina, solder paste printer, PCB loader, PCB unloader, chip mounter, SMT AOI muchina, SMT SPI muchina, SMT X-Ray muchina, SMT dhizaini yemutsetse midziyo, PCB yekugadzira Equipment SMT spare parts, etc chero mhando dzeSMT michina yaungade, ndapota taura nesu kuti uwane rumwe ruzivo:

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