Surface treatment before solder mask

I. Introduction At present, in the printed circuit board industry, there are more specifications to regulate the solder mask printing, from the previous IPC-SM-840C (the Amendment 1 of 1996.1 C and 2000.6), but the pre-welding treatment is also required, many The downstream customers began to re- ......

Surface treatment before solder mask

I. Introduction At present, in the printed circuit board industry, there are more specifications to regulate the solder mask printing, from the previous IPC-SM-840C (the Amendment 1 of 1996.1 C and 2000.6), but the pre-welding treatment is also required, many The downstream customers began to re- ......

Printing iron ink deployment

In the color light addition method, equal proportions of the three color lights are added and mixed to form white light. Blue and green light are mixed into blue light; blue and red light are mixed red light; green and red light are mixed into yellow light and so on. These phenomena are unacceptab ......

Printing iron ink deployment

In the color light addition method, equal proportions of the three color lights are added and mixed to form white light. Blue and green light are mixed into blue light; blue and red light are mixed red light; green and red light are mixed into yellow light and so on. These phenomena are unacceptab ......

Printed circuit screen printing process (2)

6, the manufacturing process. 6.1 Principles and Working Conditions The main components of the liquid photoimageable solder resist ink include: photosensitivity epoxy (EPOXY), and Acrylic resin, such as C Diacid epoxy resin, phenolic epoxy resin, cresol epoxy resin, carbamoylamine; photoinitiat ......

Polyethylene, polypropylene plastic screen printing ink

First, plastic profile The organic high molecular polymer can be molded into a shape under the conditions of heat and pressure, and a material that can maintain a fixed shape under normal temperature and normal pressure is called a plastic. The main components of plastics are synthetic resins. Sy ......

Tsingtao Brewery Green Flexible Printed Packaging Box

“Tsingtao Beer” is the first brand of Chinese beer, and it is one of the best beer exporters with an annual output of 3.7 million tons. Tsingtao Brewery’s color corrugated box conquers consumers with its exquisite design and visual perception. The shape of the party, the rhythm ......

Photoshop & CorelDRAW Business Practice: Candy Packaging…

This example describes in detail the entire process of confectioning, designing, and printing of an aluminum foil candy bag. As shown in Fig. 13-1 and Fig. 13-2, the front and back drawings of the “jumping beans” and the three-dimensional rendering of the finished product are respectiv ......

Packaging Design Information Delivery (3)

4, graphics transfer Graphics can also be called patterns. The main purpose of graphic design in packaging design is to more accurately, fully, and comprehensively express the characteristics of the product and the designer's design concept. Graphic information transmission mainly includes fi ......

Convenient and easy-to-carry hexagonal carton

Hagensborg of the United Kingdom launched a new block-shaped chocolate package, the Truffles To Go, a 5.4-ounce hexagonal carton, used to wrap pre-packaged chocolate bars. The new carton was developed by Hagensborg on the basis of its 2.6 oz hexagonal carton package. The new hexagonal carton is d ......