1. Cov khoom siv FR-4 yog pheej yig dua li cov khoom siv Rogers

2. Cov khoom siv Rogers muaj ntau zaus piv rau cov khoom siv FR-4.

3. Df lossis dissipation yam ntawm cov khoom siv FR-4 yog siab dua li ntawm Rogers cov khoom, thiab cov teeb liab poob ntau dua.

4. Nyob rau hauv cov nqe lus ntawm impedance stability, Dk tus nqi ntau ntawm Rogers cov khoom yog loj dua li ntawm FR-4 khoom.

5. Rau dielectric tas li, Dk ntawm FR-4 yog hais txog 4.5, uas yog qis dua Dk ntawm Rogers cov khoom (txog 6.15 txog 11).

6. Hais txog kev tswj qhov kub thiab txias, Rogers cov khoom hloov pauv tsawg dua piv rau FR-4 cov khoom

Vim li cas thiaj siv Rogers PCB cov ntaub ntawv?

FR-4 cov ntaub ntawv muab cov qauv yooj yim rau PCB substrates, tswj qhov dav thiab zoo sib npaug ntawm tus nqi, durability, kev ua tau zoo, kev tsim khoom, thiab cov khoom hluav taws xob. Txawm li cas los xij, txij li kev ua tau zoo thiab cov khoom siv hluav taws xob ua lub luag haujlwm tseem ceeb hauv koj tus qauv tsim, Rogers cov ntaub ntawv muab cov txiaj ntsig hauv qab no:

1. Tsawg hluav taws xob teeb liab poob

2. Tus nqi tsim nyog PCB

3. Tsawg dielectric poob

4. Kev tswj xyuas thermal zoo dua

5. Ntau yam ntawm Dk (dielectric tas li) qhov tseem ceebua(2.55-10.2) Nws.

6. Tsawg outgassing nyob rau hauv aerospace daim ntaub ntawv

7. Txhim kho impedance tswj