Hard film layer dedicated for micro-bore of flexible printed circuit board

A technology of printed circuit and hard film layer, which is applied in the direction of drilling repair, layered products, drilling tool accessories, etc. It can solve the problems of low film density, poor bonding force between film and substrate, and low ionization rate of sputtering deposition. , achieve high thermal conductivity, increase bonding force, and high toughness
CN1864900AInactive Publication Date: 2006-11-22浙江汇锦梯尔镀层科技有限公司
0 Cites 7 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
浙江汇锦梯尔镀层科技有限公司
Publication Date
2006-11-22
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
Patent Text Reader

Abstract

The invention relates to a right film of micro drilling head used to drill the soft board of printed circuit board. It is characterized in the improvement of micro drilling special rigid film. Wherein, said film should have better abrasion and high-temperature resistant properties, to improve the quality and service life of drilling hole, and improve the processing efficiency of printed circuit board and reduce the producing cost. The preparation comprises: its base material is the general drilling head, whose surface has at least three films as transition layer that contains chrome, nitride transition layer that contains chrome and nitride chrome, nitride rigid abrasion resistant layer that contains nitride chrome, from inner to outer. Said transition layer, nitride transition layer and nitride rigid abrasion resistant layer can be added with titanium and aluminum, while the nitride transition layer comprises the inner mixed layer and the outer mixed layer.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a special hard film layer for a drill bit, in particular to a hard film layer on a micro drill bit used for drilling holes on a soft board of a printed circuit board when manufacturing a printed circuit. Background technique

[0002] As the circuit pattern of the printed circuit board is getting finer and finer, the aperture on the printed circuit board is getting smaller and smaller (now reached φ0.1mm), and the wiring density is getting denser (L / S≤0.1mm / 0.1mm) , the processing speed is getting faster and faster (150-200 holes / min), which puts higher requirements on the carbide micro-machining tools and machining accuracy, because when drilling such micro-holes, φ0.1mm~φ0 The wear and breakage of .4mm micro-hole drills have a great impact on the processing quality, processing efficiency, reject rate, and processing cost of micro-holes.

[0003] The research results show that the wear of FPCB (flexible printed circuit board) ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More