[接第78期]四、盘片复制4.1注塑工艺在早期的可擦写BD光盘的研发中,有两种不同的方法来制作含有薄覆盖层的BD盘片。一种方法是将坑点图案转移到0.1mm厚的薄膜基片上,然后粘合一个1.1mm厚的盘基;另一种方法与此相反,先用注塑技术将坑点图案转移到1.1mm厚的盘基上,然后再粘合一? [Pick the first 78] Fourth, the disk copy 4.1 injection molding process In the early development of rewritable BD disc, there are two different ways to make a BD cover with a thin layer of disc. One method is to transfer the pit pattern to a 0.1 mm thick film substrate and then a 1.1 mm thick disk base. Alternatively, the pit pattern is first transferred by injection molding to a 1.1 mm thick On the basis of the disc, and then glued one?