Apparatus of multiplunger type for enclosing semiconductor elements with resin
US4793785A · kind A · utility
Inventor
Key dates
| Filing date | Apr 6, 1987 |
| Grant date | Dec 27, 1988 |
| Priority date | — |
| Expiry date | Apr 6, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2045/4094
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An apparatus of the multiplunger type having a stationary die and a movable die opposed thereto includes stationary and movable cavity blocks and ejector plates removably mounted on stationary and movable die bases, respectively. The lower one of the die bases is removably provided with a plunger holder on which plungers are arranged at an adjustingly variable spacing. The above components on the die bases are easily changeable, while the spacing between the plungers is readily adjustable to the spacing between the pots in the cavity block to be used upon a change. The apparatus is suited to the production of various kinds of semiconductor devices in small quantities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.