METHOD FOR MANUFACTURING THERMALLY-COMPENSATED HOROLOGY HAIRSPRINGS OF PRECISE STIFFNESS

• Main Authors: MAIER FREDERIC, JEANNERET SYLVAIN
• Format: Patent
• Language: Chinese; English
• Published: 10.11.2020
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; HOROLOGY; LIGHTING; MEANS FOR DAMPING VIBRATION; MECHANICAL ENGINEERING; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; MECHANICALLY-DRIVEN CLOCKS OR WATCHES; PHYSICS; SHOCK-ABSORBERS; SPRINGS; THERMAL INSULATION IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS; WEAPONS

The horology hairspring manufacturing method according to the invention comprises the following successive steps: a) forming hairsprings in a wafer, b) forming a thermal-compensation layer on the hairsprings, c) identifying those hairsprings that have a stiffness comprised within a predetermined range, d) optionally, detaching from the wafer those hairsprings that were identified in step c), e) modifying the other hairsprings so that the stiffness of at least some of them is comprised within the predetermined range, f) detaching these other hairsprings from the wafer, together with, if they were not detached in step d), the hairsprings identified in step c). This method makes it possible to reduce the spread in the manufacture of hairsprings. 根据本发明的制造钟表游丝的方法包括以下连续步骤：a)在晶圆中形成游丝，b)在游丝上形成热补偿层，c)识别具有预定范围内的刚度的游丝，d)可选地，将步骤c)中识别的游丝从晶圆上分离，e)修改其他游丝，使得其他游丝中的至少一部分的刚度在预定范围内，f)从晶圆上分离这些其他游丝，并且如果步骤c)中识别的游丝在步骤d)中没有被分离，则从晶圆上分离该步骤c)中识别的游丝。这种方法使得可以减少游丝之间的制造分散。