back to top
My wish lists
Save your wish list
If you want to add more content to your wish list, simply log in. If you do not have a user account, please register for the Hanser Customer Center.

» Do you already have a user account? Please log in here.
» Don't have a user account yet? Please register here.
Your wish lists
If you want to use your wish list during your next visit, simply log in. If you do not have a user account, please register for the Hanser Customer Center.
» Do you already have a user account? Please log in here.
» Don't have a user account yet? Please register here.

« Back

Your advantages at a glance

  • One login for all Hanser portals
  • Individual home page for faster access to preferred content
  • Exclusive access to selected content
  • Personal wish lists on all portals
  • Central management of your personal information and newsletter subscriptions

Register now
Deutsch
Bookmark Bookmarked
10-18-2012

Efficient Metallizing of Complex Injection Molded Parts

The connecting piece (2) links the carrier (1) with the molded plastic part (3). The weak spot in the material (4) facilitates singulation of the parts after metallizing

The connecting piece (2) links the carrier (1) with the molded plastic part (3). The weak spot in the material (4) facilitates singulation of the parts after metallizing

Metallizing of three-dimensional molded plastic parts usually involves the steps of injection molding, pretreatment and chemical metallizing. In actual practice, the variability of these process steps results in considerable effort as regards parts handling. To reduce this effort, molded interconnect devices (MIDs), for instance, are treated in bulk in chemical metallizing baths. Under certain circumstances, however, delicate and mechanically sensitive parts face problems.

A recently published patent describes a newly developed process that permits exact positioning of the molded parts. It permits rapid and economical deposition of electroplated copper layers. A connecting piece holds the plastic parts to a flexible carrier, for instance, a conveying belt. In this way, a number of plastic parts are temporarily connected to one another. The connecting piece functions as the electrically conductive connection between the carrier and plastic part and provides the electricity needed for the metallizing process. The interconnected plastic MIDs can be transferred easily from one processing step to the next to be metallized.

Use of standard carriers with a fixed spacing facilitates flexible manufacturing. The need to modify processes is largely eliminated when metallizing different molded plastic parts. Singulation of the molded plastic parts takes place in a separate step, for instance, in conjunction with installation of the plastic part on an assembly. It is advantageous if the connecting pieces can be separated from the molded plastic parts at an intentional weak spot in the material. Laser cutting devices or punches are suitable for this purpose.

Dr.-Ing. Harald Sambale
sambale <AT> kunststoffe.de

contact
LPKF Laser & Electronics AG
Osteriede 7
DE 30827 Garbsen
Tel: +49 5131 7095-0
Fax: +49 5131 7095-90


Newsletter

Would you like to subscribe to our Newsletters on plastics technology and profit from the latest information?

Subscribe here

Subscribe here