摘要:
A miniaturized device mounting board having high reliability is provided. A material constituting a photoimageable solder resist layer 328 can be formed into a thin film while voids and unevenness are suppressed to occur by using a cardo type polymer which is of a base material and a predetermined additive. Therefore, a film having a thickness of about 25 μm can be used as the material constituting the photoimageable solder resist layer 328. The material constituting photoimageable solder resist layer 328 becomes about two-thirds in thickness, when compared with the conventional resin material having the thickness of about 35 μm, which is used as the photoimageable solder resist layer 328. Accordingly, a device mounting board 400 can be miniaturized.
摘要:
A decoding unit 150 decodes coded image data. A low resolution frame buffer 30 stores low resolution image data output from the decoding unit 150. A high resolution frame buffer 40 stores high resolution image data output from the decoding unit 150. A low resolution display circuit 32 acquires data from the low resolution frame buffer 30, and creates display signals for a low resolution display device 36 for displaying low resolution moving images. A high resolution display circuit 42 acquires data from the high resolution frame buffer 40, and creates display signals for a high resolution display device 46 for displaying high resolution moving images. Thus, each of multiple display devices can display respective moving images with different resolution.
摘要:
A semiconductor memory device is described that has an improved read characteristics. The semiconductor memory device includes a plurality of memory cells, a reference cell, a comparator located between the memory cells and the reference cell, and a discriminator coupled to the comparator. The comparator compares the actual signal equivalent to a value of a current flowing in each of the memory cells and reference signals equivalent to a value of a current flowing in the reference cell with each other to output a comparison result signal in each of data reading operation modes. The discriminator discriminates a value of data stored in each of the memory cells based on the comparison result signal. The discriminator includes a circuit shared for discrimination of a data value in each of the data reading operation modes.