Drill board and method of making the same

Details Drill board and method of making the same Drill board and method of making the same

1987-12-21

1989-08-01

Robinson, Ellis P.

Stock material or miscellaneous articles

Structurally defined web or sheet

Honeycomb-like

428181, 428184, 428211, 428901, 156226, 156227, B32B 312, B32B 3100

Patent

active

048532738

ABSTRACT:
A backup board for use when drilling through a circuit board having a conductive layer therein, the backup board comprises a lamination of outer planar sheets, and an inner core of a double wall corrugated material, the outer sheets being impregnated with a thermosetting adhesive, the sheets and the core being subjected to heat and pressure to form a laminate where said corrugations fold over and bond to said outer planar sheets, to provide a backup board giving surface support by said outer sheets with a less rigid core therebetween.

REFERENCES:
patent: 1507372 (1924-02-01), Greenstreet
patent: 3653382 (1972-04-01), Easley et al.
patent: 3700341 (1972-10-01), Block
patent: 3990936 (1976-11-01), Geschwender
patent: 4012307 (1977-03-01), Phillips
patent: 4269549 (1981-05-01), Block

Affiliated with

Also associated with

Rating

Drill board and method of making the same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Drill board and method of making the same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Drill board and method of making the same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-130702