EVALUATION OF DRILLED HOLE QUALITY IN PRINTED-CIRCUIT BOARDS

Citation
Mn. Srinivasan et al., EVALUATION OF DRILLED HOLE QUALITY IN PRINTED-CIRCUIT BOARDS, Journal of engineering for industry, 117(2), 1995, pp. 248-252
Citations number
NO
Categorie Soggetti
Engineering, Mechanical
ISSN journal
00220817
Volume
117
Issue
2
Year of publication
1995
Pages
248 - 252
Database
ISI
SICI code
0022-0817(1995)117:2<248:EODHQI>2.0.ZU;2-0
Abstract
The effect of drilling speed and the chip load on the hole quality in a printed circuit board was investigated. The hole defects considered were smear, burr, nail heading and void Holes drilled with different c ombinations of the speed and chip load were sectioned and examined usi ng a scanning electron microscope to identify and quantify the defects . Each defect was related to the drilling variables in order to explai n the reason far its formation and discuss the broad trends in the rel ationships.