Pcb papa prototype hapalua puka ENIG ili TG150
Hōʻike huahana:
| Mea Kumu: | FR4 TG150 |
| Mānoanoa PCB: | 1.6+/-10%mm |
| Ka helu papa: | 4L |
| Mānoanoa keleawe: | 1/1/1/1 oz |
| Lapaʻau ʻili: | ENIG 2U” |
| ʻO ka mask solder: | ʻōmaʻomaʻo ʻōlinolino |
| Silkscreen: | Keʻokeʻo |
| Kaʻina hana kūikawā: | Pth hapalua puka ma nā ʻaoʻao |
Palapala noi
ʻO ka waiwai TG e pili ana i ka mahana hoʻololi aniani (Tg), kahi mea koʻikoʻi no ka paʻa wela a me ka pale wela o nā papa PCB. ʻO nā papa PCB me nā koina TG ʻokoʻa nā waiwai like ʻole a me nā hiʻohiʻona noi. Eia kekahi mau ʻokoʻa maʻamau:
1. ʻO ke kiʻekiʻe o ka waiwai Tg, ʻoi aku ka maikaʻi o ke kūpaʻa wela kiʻekiʻe o ka papa PCB, kahi kūpono no nā hiʻohiʻona noiʻi ma nā wahi wela kiʻekiʻe, e like me ka uila uila, ka mana ʻoihana a me nā māla ʻē aʻe.
2. ʻOi aku ka kiʻekiʻe o ka waiwai Tg, ʻoi aku ka maikaʻi o nā waiwai mechanical o ka papa PCB, a ʻoi aku ka maikaʻi o nā hōʻailona ikaika e like me ke kulou, tensile, a me ka shearing ma mua o ka papa PCB me ka waiwai Tg haʻahaʻa. He kūpono ia no nā mea kani pololei a me nā mea pono e pono ai ke kūpaʻa kiʻekiʻe.
3. ʻO ke kumukūʻai o nā papa PCB me ka waiwai Tg haʻahaʻa he haʻahaʻa haʻahaʻa, kūpono ia no kekahi mau hiʻohiʻona noiʻi me nā koi haʻahaʻa haʻahaʻa a me ka hoʻokele koʻikoʻi o ke kumukūʻai, e like me nā mea uila uila. I ka pōkole, ʻo ke koho ʻana i kahi papa PCB kūpono no kāu hiʻohiʻona noiʻi e kōkua i ka hoʻomaikaʻi ʻana i ka maikaʻi o ka huahana a me ke kūpaʻa a hoʻemi i nā kumukūʻai hana.
4. ʻO ka papa kaapuni paʻi tg150 e hōʻike ana i kahi papa kaapuni i kūkulu ʻia me kahi papa tg150. Hōʻike pinepine ʻo TG i ka mahana hoʻololi aniani, ʻo ia ka mea e pili ana i ka hoʻololi mau ʻana o nā mea amorphous mai kahi kūlana paʻa a "aniani" a i kahi kūlana rubbery a viscous i ka hoʻohana ʻana i nā mahana i manaʻo ʻia. ʻOiai ke hōʻike pinepine nei ka TG i ka haʻahaʻa haʻahaʻa ma mua o ka wela hoʻoheheʻe ʻana o ke kūlana mea crystalline pili.
5. 'O ke aniani mea wela ho'ololi e hele pinepine mai ma ke 'ano he mea 'a'ole i ke ahi, ho'ohehe'e/ho'ohehe'e ma nā pae wela. Hiki mai kahi PCB tg150 ma ke ʻano he mea TG maʻamau no ka mea e hāʻule ana ma luna o ka laulā o 130 degere Celsius a 140 degere Celsius akā ma lalo o ka 170 degere Celsius like a ʻoi aku paha. E ʻoluʻolu, ʻoi aku ka kiʻekiʻe o ka TG o kahi substrate (epoxy maʻamau), ʻoi aku ka kiʻekiʻe o ka paʻa o ka papa kaapuni paʻi.
FAQs
Pono e hoʻohana ʻia ka wela e pono ai no ka PREPREG rigidity me ka ʻole o ka FR4 Tg e mālama i ka paʻa PCB. Aia ka FR4 Tg maʻamau ma waena o 130 – 140°C, ʻo ka median Tg he 150 °C a ʻoi aku ka Tg kiʻekiʻe ma mua o 170°C
Noho ʻo Tg maʻamau ma luna o 130 ℃ aʻo Tg kiʻekiʻe ma luna o 170 ℃ a me ka waena Tg ma luna o 150 ℃. I ka wā e pili ana i nā mea no nā PCB, pono e koho ʻia ka Tg kiʻekiʻe, ʻoi aku ka kiʻekiʻe ma mua o ka holo ʻana o ka mahana hana.
Hiki mai kahi PCB tg150 ma ke ʻano he mea TG maʻamau no ka mea e hāʻule ana ma luna o ka laulā o 130 degere Celsius a 140 degere Celsius akā ma lalo o ka 170 degere Celsius like a ʻoi aku paha. E ʻoluʻolu, ʻoi aku ka kiʻekiʻe o ka TG o kahi substrate (epoxy maʻamau), ʻoi aku ka kiʻekiʻe o ka paʻa o ka papa kaapuni paʻi.
ʻO ke kumu nui e noʻonoʻo ai inā hoʻohana ʻo 150 a i ʻole 170 Tg PCB mea ʻo ia ka mahana hana. Inā ʻoi aku ka liʻiliʻi ma mua o 130C/140C, a laila kūpono ʻo Tg 150 i kāu PCB; akā inā he 150C ka mahana hana, a laila pono ʻoe e koho i 170 Tg.
Loaʻa i kahi PCB Tg kiʻekiʻe kahi ʻōnaehana resin i hoʻolālā ʻia e kū i ke kūʻai ʻana me ke alakaʻi ʻole a hiki i ka ikaika mechanical kiʻekiʻe ma nā wahi wela ʻoi aʻe. ʻO ka Resin kahi mea paʻa a semisolid paha i hoʻohana pinepine ʻia i loko o nā plastics, varnish, etc.
