nse tejede Circuit ọkọ (PCB) jẹ iṣẹ ṣiṣe deede fun ọpọlọpọ awọn ẹlẹrọ itanna (EE). Laibikita awọn ọdun ti iriri apẹrẹ PCB, ṣiṣẹda awọn iṣẹ PCB ti o ni agbara ṣiṣe ti o ga julọ kii ṣe rọrun. Awọn ifosiwewe pupọ lo wa lati gbero, ati ohun elo awo jẹ ọkan ninu wọn. The basic materials used to make PCBS are very important. Ṣaaju iṣelọpọ, awọn ohun -ini ti ohun elo ni ọpọlọpọ awọn abawọn gbọdọ gbero, gẹgẹbi irọrun, resistance iwọn otutu, ibakan aisi -itanna, agbara aisi -itanna, agbara fifẹ, adhesion ati bẹbẹ lọ. Iṣe ati iṣọpọ ti igbimọ Circuit kan dale lori awọn ohun elo ti a lo. Nkan yii tun ṣawari awọn ohun elo PCB siwaju. So stay tuned for more information.

What types of materials are used in PCB manufacturing?

This is a list of the main materials used to make circuit boards. Jẹ ki a wo ni.

Fr-4: FR is short for FIRE RETARDENT. O jẹ ohun elo PCB ti o wọpọ julọ fun gbogbo awọn oriṣi ti iṣelọpọ PCB. Gilaasi ti fikun iposii laminate FR-4 ni a ṣe nipa lilo asọ gilaasi ti a hun ati apanirun resini ti ina. This material is popular because it provides excellent electrical insulation and has good mechanical strength. Ohun elo yii n pese agbara fifẹ pupọ ga. O jẹ olokiki fun iṣelọpọ ti o dara ati gbigba ọrinrin.

Fr-5: Awọn sobusitireti jẹ ti ohun elo okun ti a fikun ati gilasi epo epo kan. This is a good choice for multi-layer circuit board design. O ṣe daradara ni alurinmorin ti ko ni asiwaju ati pe o ni awọn ohun-ini ẹrọ ti o dara julọ ni awọn iwọn otutu to gaju. O ṣe akiyesi fun gbigba ọrinrin kekere, resistance kemikali, awọn ohun -ini itanna ti o dara julọ ati agbara nla.

Fr-1 and FR-2: It is composed of paper and phenolic compounds and is ideal for single-layer circuit board designs. Both materials have similar properties, but FR2 has a lower glass transition temperature than FR1.

Cem-1: Ohun elo yii jẹ ti ẹgbẹ ti awọn ohun elo epoxy eroja (CEM). Eto naa ni resini sintetiki epoxy, aṣọ fiberglass ati ipilẹ ti kii-gilaasi. Ohun elo naa, ti a lo ninu awọn igbimọ Circuit apa kan, jẹ ilamẹjọ ati imukuro ina. It is famous for its excellent mechanical and electrical performance.

Cem-3: Similar to CEM-1, this is another composite epoxy material. It has flame retardant properties and is mainly used for double-sided circuit boards. It is less mechanically strong than FR4, but cheaper than FR4. Therefore, it is a good alternative to FR4.

Ejò: Ejò jẹ yiyan akọkọ ni iṣelọpọ ti awọn igbimọ Circuit ẹyọkan ati pupọ. Eyi jẹ nitori pe o pese awọn ipele agbara giga, igbona giga ati ibaramu itanna ati ifaseyin kemikali kekere.

High Tg: High Tg indicates high glass transition temperature. This PCB material is ideal for boards in demanding applications. Awọn ohun elo Tg ni agbara iwọn otutu giga ati agbara delamination igba pipẹ.

Rogers: Commonly referred to as RF, this material is known for its compatibility with FR4 laminates. Nitori iṣeeṣe ebute ebute giga ati ikọlu iṣakoso, awọn igbimọ Circuit ti ko ni asiwaju le ni ẹrọ ni rọọrun.

Aluminiomu: Ohun elo PCB yii ti ko ni rọọrun ati idilọwọ ṣe idiwọ awọn igbimọ idẹ lati igbona pupọ. It was chosen primarily for its ability to dissipate heat quickly.

Aluminiomu ti ko ni Halogen: Irin yii jẹ apẹrẹ fun awọn ohun elo ore ayika. Aluminiomu ti ko ni Halogen ti ni ilọsiwaju igbagbogbo aisi-itanna ati kaakiri ọrinrin.

Ni awọn ọdun sẹhin, PCBS ti gba gbaye -gbale nla ati rii ọpọlọpọ awọn ohun elo ni awọn ile -iṣẹ ti o nilo awọn iyika eka. Nitorinaa, yiyan ohun elo PCB ti o tọ jẹ pataki pupọ, nitori ko ni ipa lori iṣẹ ati awọn abuda nikan, ṣugbọn tun idiyele gbogbogbo ti igbimọ. Yan awọn ohun elo ti o da lori awọn ibeere ohun elo, awọn okunfa ayika, ati awọn idiwọn miiran ti o dojuko PCB.