How sensitive are CD4XXXX series devices

[cspcboy]

Dapat ba palaging naka grounding strap bago hawakan ang mga ito para hindi masira ng static electricity?

[Shey]

Not really, pag air conditioned ang room mo kailangan mo ng wrist strap kasi malakas ang static electricity pag mababa ang humidity. Kung hindi naman airconditioned ang room mo, ok lang kahit hindi grounded kasi mahirap mag-build up ang static electricity sa normal na humidity ng pilipinas.

[Akon]

just avoid working in air conditioned rooms. here in amkor we always use grounding wrist straps once you are inside the clean rooms.

[Ikasamoko]

Dapat ba palaging naka grounding strap bago hawakan ang mga ito para hindi masira ng static electricity?

Not really unless you're working on costly circuit..motherboard etc..

but kung assemble ka lng projects using CMOS devices go on..di ganun ka sensitive yung cmos ic like sa mga stated ng electronics books..ako dati umaabot sa point na pati hininga ko pigil na basta cmos ic ang involved..
but never pa ako naka sira ng cmos ic due to static..kadalasan overheat sa pag solder or overvolatage wrong polarity..

minsan nga ginagawa ko is piggyback a cmos ic with other ic..ok nman..

alam nyo anu kadalasan na cause ng cmos failure..yung mumurahin na soldering iron!! grabe ang taas ng leak na AC voltage nyan sa tip..

ako ganito lang palagi ginagawa ko..pag handle ng cmos ic's..removing/soldering etc..naka apak lang ako sa concrete floor..hehehe..be sure DI POWERED yung circuit ha!!

 

[paranz]

good article about ESD from e-gizmo website:

http://www.e-gizmo.com/ARTICLES/ESD/ESD1.HTM

[gerisonic]

Dapat ba palaging naka grounding strap bago hawakan ang mga ito para hindi masira ng static electricity?

Todays CD4XXXX are not so sensitive. Some already have built-in protection device inside the chip. I even dont use wrist strap.
My tricks?
1.) Avoid sitting on plastic chair. Rubbing your butt in that plastic chair creates a charge. Minsan pag tayo mo sa chair and you happen to touch a grounded metal objects.... SHOCKKKK...
2.) Remove your shoes and step on concrete floor when handling this IC's with bare hands.

[creedcradle]

good article about ESD from e-gizmo website:

http://www.e-gizmo.com/ARTICLES/ESD/ESD1.HTM

Yup .. maganda yan... pero depende kasi yan sa chip... remember mayroong chip na ULTRA sensitive at meron namang sobrang tibay... so far sa mga CDXXX series.. hindi sila ganun ka sensitive...

pero recently ung ibang company ay nagrerelease na ng mga sensitibong ic na ganyan...

-creedcradle